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Posted to user@arrow.apache.org by xxwang <xi...@obspm.fr> on 2020/01/07 14:15:42 UTC

Pyarrow installation

Dear all,
     I tried to installed Pyarrow (within python 3.7), by using pip install pyarrow. The installation seems OK. But when I do «  import pyarrow», then there is an error as below. I do not understand why ….. If you could give some help, I will greatly appreciate !

Best regards
Xiaoni

.conda/envs/python3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev

Re: Pyarrow installation

Posted by xxwang <xi...@obspm.fr>.
Hello Uwe,
     Thanks for your response. I am cleaning the installations and let us see.

Best regards
Xiaoni


> Le 7 janv. 2020 à 16:04, Uwe L. Korn <uw...@xhochy.com> a écrit :
> 
> Hello Xiaoni,
> 
> it seems that you have a conda environment and also installed pyarrow with conda before. Mixing pip and conda installs of pyarrow is not going to work. Please recreate your conda environment and install pyarrow from conda forge using "conda config --add channels conda-forge && conda install pyarrow".
> 
> Cheers
> Uwe
> 
> On Tue, Jan 7, 2020, at 3:15 PM, xxwang wrote:
>> Dear all,
>>      I tried to installed Pyarrow (within python 3.7), by using pip install pyarrow. The installation seems OK. But when I do «  import pyarrow», then there is an error as below. I do not understand why ….. If you could give some help, I will greatly appreciate !
>> 
>> Best regards
>> Xiaoni
>> 
>> .conda/envs/python3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev


Re: Pyarrow installation--solved

Posted by xxwang <xi...@obspm.fr>.
Hi Igor,
     Thanks for your reminding. I created a new environment and installed Pyarrow from conda-forge. Indeed the version 0.15 is installed automatically in the new enviroment. The import is all right. 

Best regards
Xiaoni

> Le 9 janv. 2020 à 22:22, Igor Yastrebov <ig...@gmail.com> a écrit :
> 
> Hi Xiaoni,
> 
> I strongly advise against doing it this way. If `conda install -c conda-forge pyarrow` installs pyarrow 0.11.1 in your environment then it means there is a conflict between versions of packages and you will likely encounter problems later on.
> 
> I advise the following:
> 1) Remove anaconda
> 2) Install miniconda instead
> 3) Install only the packages you need (preferably in a new environment)
> 4) Do `conda install -c conda-forge pyarrow=0.15.1`
> 5) Success! If problems remain, resolve conflicts manually
> 
> Best regards,
> Igor
> 
> пт, 10 янв. 2020 г., 0:08 Xiaoni Wang <xiaoni.wang@obspm.fr <ma...@obspm.fr>>:
> Dear all,
>      Thanks for your input. This problem is now resolved.
> 
> 1) removed older version of anaconda
> 2) reinstall anaconda3.7 and other packages
> 3) pip install pyarrow==0.15.*
> 
> The import of pyarrow is good now. 
> 
> Before, I used 'condo install -c conda-forge pyarrow’, and Conda installed an older version 0.11.1 automatically, not the latest 0.15. It seems to me that the older version of pyarrow may result in the conflicts with other packages.
> 
> Best regards
> Xiaoni
> 
> Le 9 janv. 2020 à 15:40, xxwang <xiaoni.wang@obspm.fr <ma...@obspm.fr>> a écrit :
> 
>> Hi Wes
>>      Thanks. There seems to be a version conflict problem. I have the condo-forge in my channel list. I had installed Pyarrow by 'conda install pyarrow’.
>> What I did just now:
>> 1) I removed Pyarrow by : conda uninstall pyarrow
>> 2) Then I tried to reinstall Pyarrow by: conda install pyarrow
>> The conda suggested to install Pyarrow-0.11.1. So I installed it. Then I got the same error of 'undefined symbol'.
>> 
>> Thanks in advance,
>> 
>> Xiaoni
>> 
>> 
>> conda list give:
>> # packages in environment at /obs/xxwang/anaconda3:
>> #
>> # Name                    Version                   Build  Channel
>> _ipyw_jlab_nb_ext_conf    0.1.0                    py37_0  
>> _libgcc_mutex             0.1                        main  
>> _tflow_select             2.3.0                       mkl  
>> absl-py                   0.8.1                    py37_0  
>> alabaster                 0.7.12                   py37_0  
>> anaconda                  2019.10                  py37_0  
>> anaconda-client           1.7.2                    py37_0  
>> anaconda-navigator        1.9.7                    py37_0  
>> anaconda-project          0.8.3                      py_0  
>> aplus                     0.11.0                     py_1    conda-forge
>> arrow-cpp                 0.11.1           py37h3bd774a_1    conda-forge
>> asn1crypto                1.0.1                    py37_0  
>> astor                     0.8.0                    py37_0  
>> astroid                   2.3.1                    py37_0  
>> astropy                   3.2.2            py37h7b6447c_0  
>> atomicwrites              1.3.0                    py37_1  
>> attrs                     19.2.0                     py_0  
>> babel                     2.7.0                      py_0  
>> backcall                  0.1.0                    py37_0  
>> backports                 1.0                        py_2  
>> backports.functools_lru_cache 1.6.1                      py_0  
>> backports.os              0.1.1                    py37_0  
>> backports.shutil_get_terminal_size 1.0.0                    py37_2  
>> backports.tempfile        1.0                        py_1  
>> backports.weakref         1.0.post1                  py_1  
>> beautifulsoup4            4.8.0                    py37_0  
>> binutils_impl_linux-64    2.33.1               he6710b0_7  
>> binutils_linux-64         2.33.1              h9595d00_15  
>> bitarray                  1.0.1            py37h7b6447c_0  
>> bkcharts                  0.2                      py37_0  
>> blas                      1.0                         mkl  
>> bleach                    3.1.0                    py37_0  
>> blosc                     1.16.3               hd408876_0  
>> bokeh                     1.3.4                    py37_0  
>> boost-cpp                 1.68.0            h11c811c_1000    conda-forge
>> boto                      2.49.0                   py37_0  
>> boto3                     1.10.39                    py_0  
>> botocore                  1.13.39                    py_0  
>> bottleneck                1.2.1            py37h035aef0_1  
>> bqplot                    0.12.2                     py_0    conda-forge
>> branca                    0.3.1                      py_0    conda-forge
>> bzip2                     1.0.8                h7b6447c_0  
>> c-ares                    1.15.0            h7b6447c_1001  
>> ca-certificates           2019.8.28                     0  
>> cachetools                3.1.1                      py_0    conda-forge
>> cairo                     1.14.12              h8948797_3  
>> certifi                   2019.9.11                py37_0  
>> cffi                      1.12.3           py37h2e261b9_0  
>> cftime                    1.0.4.2          py37hdd07704_0  
>> chardet                   3.0.4                 py37_1003  
>> click                     7.0                      py37_0  
>> cloudpickle               1.2.2                      py_0  
>> clyent                    1.2.2                    py37_1  
>> colorama                  0.4.1                    py37_0  
>> conda                     4.7.12                   py37_0  
>> conda-build               3.18.9                   py37_3  
>> conda-env                 2.6.0                         1  
>> conda-package-handling    1.6.0            py37h7b6447c_0  
>> conda-verify              3.4.2                      py_1  
>> contextlib2               0.6.0                      py_0  
>> cryptography              2.7              py37h1ba5d50_0  
>> curl                      7.65.3               hbc83047_0  
>> cycler                    0.10.0                   py37_0  
>> cython                    0.29.13          py37he6710b0_0  
>> cytoolz                   0.10.0           py37h7b6447c_0  
>> dask                      2.5.2                      py_0  
>> dask-core                 2.5.2                      py_0  
>> dbus                      1.13.6               h746ee38_0  
>> decorator                 4.4.0                    py37_1  
>> defusedxml                0.6.0                      py_0  
>> distributed               2.5.2                      py_0  
>> docutils                  0.15.2                   py37_0  
>> entrypoints               0.3                      py37_0  
>> et_xmlfile                1.0.1                    py37_0  
>> expat                     2.2.6                he6710b0_0  
>> fastcache                 1.1.0            py37h7b6447c_0  
>> filelock                  3.0.12                     py_0  
>> flask                     1.1.1                      py_0  
>> fontconfig                2.13.0               h9420a91_0  
>> freetype                  2.9.1                h8a8886c_1  
>> fribidi                   1.0.5                h7b6447c_0  
>> fsspec                    0.5.2                      py_0  
>> future                    0.18.2                   py37_0  
>> gast                      0.2.2                    py37_0  
>> gcc_impl_linux-64         7.3.0                habb00fd_1  
>> gcc_linux-64              7.3.0               h553295d_15  
>> get_terminal_size         1.0.0                haa9412d_0  
>> gevent                    1.4.0            py37h7b6447c_0  
>> git                       2.23.0          pl526hacde149_0  
>> glib                      2.56.2               hd408876_0  
>> glob2                     0.7                        py_0  
>> gmp                       6.1.2                h6c8ec71_1  
>> gmpy2                     2.0.8            py37h10f8cd9_2  
>> google-pasta              0.1.8                      py_0  
>> graphite2                 1.3.13               h23475e2_0  
>> greenlet                  0.4.15           py37h7b6447c_0  
>> grpcio                    1.16.1           py37hf8bcb03_1  
>> gst-plugins-base          1.14.0               hbbd80ab_1  
>> gstreamer                 1.14.0               hb453b48_1  
>> gxx_impl_linux-64         7.3.0                hdf63c60_1  
>> gxx_linux-64              7.3.0               h553295d_15  
>> h5py                      2.9.0            py37h7918eee_0  
>> harfbuzz                  1.8.8                hffaf4a1_0  
>> hdf4                      4.2.13               h3ca952b_2  
>> hdf5                      1.10.4               hb1b8bf9_0  
>> heapdict                  1.0.1                      py_0  
>> html5lib                  1.0.1                    py37_0  
>> icu                       58.2                 h9c2bf20_1  
>> idna                      2.8                      py37_0  
>> imageio                   2.6.0                    py37_0  
>> imagesize                 1.1.0                    py37_0  
>> importlib_metadata        0.23                     py37_0  
>> intel-openmp              2019.4                      243  
>> ipydatawidgets            4.0.1                      py_0    conda-forge
>> ipykernel                 5.1.2            py37h39e3cac_0  
>> ipyleaflet                0.11.6                   py37_0    conda-forge
>> ipympl                    0.3.3                      py_0  
>> ipyscales                 0.3.0                      py_0    conda-forge
>> ipython                   7.8.0            py37h39e3cac_0  
>> ipython_genutils          0.2.0                    py37_0  
>> ipyvolume                 0.5.2                    py37_0    conda-forge
>> ipyvue                    1.0.2                      py_0    conda-forge
>> ipyvuetify                1.1.1                      py_0    conda-forge
>> ipywebrtc                 0.5.0                    py37_0    conda-forge
>> ipywidgets                7.5.1                      py_0  
>> isort                     4.3.21                   py37_0  
>> itsdangerous              1.1.0                    py37_0  
>> jbig                      2.1                  hdba287a_0  
>> jdcal                     1.4.1                      py_0  
>> jedi                      0.15.1                   py37_0  
>> jeepney                   0.4.1                      py_0  
>> jinja2                    2.10.3                     py_0  
>> jmespath                  0.9.4                      py_0  
>> joblib                    0.13.2                   py37_0  
>> jpeg                      9b                   h024ee3a_2  
>> json5                     0.8.5                      py_0  
>> jsonschema                3.0.2                    py37_0  
>> jupyter                   1.0.0                    py37_7  
>> jupyter_client            5.3.3                    py37_1  
>> jupyter_console           6.0.0                    py37_0  
>> jupyter_core              4.5.0                      py_0  
>> jupyterlab                1.1.4              pyhf63ae98_0  
>> jupyterlab_server         1.0.6                      py_0  
>> keras                     2.3.1                    py37_0    conda-forge
>> keras-applications        1.0.8                      py_0  
>> keras-preprocessing       1.1.0                      py_1  
>> keyring                   18.0.0                   py37_0  
>> kiwisolver                1.1.0            py37he6710b0_0  
>> krb5                      1.16.1               h173b8e3_7  
>> lazy-object-proxy         1.4.2            py37h7b6447c_0  
>> ld_impl_linux-64          2.33.1               h53a641e_7  
>> libarchive                3.3.3                h5d8350f_5  
>> libcurl                   7.65.3               h20c2e04_0  
>> libedit                   3.1.20181209         hc058e9b_0  
>> libevent                  2.1.8                h1ba5d50_0  
>> libffi                    3.2.1                hd88cf55_4  
>> libgcc-ng                 9.1.0                hdf63c60_0  
>> libgfortran-ng            7.3.0                hdf63c60_0  
>> libgpuarray               0.7.6                h14c3975_0  
>> liblief                   0.9.0                h7725739_2  
>> libnetcdf                 4.6.1                h11d0813_2  
>> libpng                    1.6.37               hbc83047_0  
>> libprotobuf               3.11.2               hd408876_0  
>> libsodium                 1.0.16               h1bed415_0  
>> libssh2                   1.8.2                h1ba5d50_0  
>> libstdcxx-ng              9.1.0                hdf63c60_0  
>> libtiff                   4.0.10               h2733197_2  
>> libtool                   2.4.6                h7b6447c_5  
>> libuuid                   1.0.3                h1bed415_2  
>> libxcb                    1.13                 h1bed415_1  
>> libxml2                   2.9.9                hea5a465_1  
>> libxslt                   1.1.33               h7d1a2b0_0  
>> llvmlite                  0.29.0           py37hd408876_0  
>> locket                    0.2.0                    py37_1  
>> lxml                      4.4.1            py37hefd8a0e_0  
>> lz4-c                     1.8.1.2              h14c3975_0  
>> lzo                       2.10                 h49e0be7_2  
>> mako                      1.1.0                      py_0  
>> markdown                  3.1.1                    py37_0  
>> markupsafe                1.1.1            py37h7b6447c_0  
>> matplotlib                3.1.1            py37h5429711_0  
>> mccabe                    0.6.1                    py37_1  
>> mistune                   0.8.4            py37h7b6447c_0  
>> mkl                       2019.4                      243  
>> mkl-service               2.3.0            py37he904b0f_0  
>> mkl_fft                   1.0.14           py37ha843d7b_0  
>> mkl_random                1.1.0            py37hd6b4f25_0  
>> mock                      3.0.5                    py37_0  
>> more-itertools            7.2.0                    py37_0  
>> mpc                       1.1.0                h10f8cd9_1  
>> mpfr                      4.0.1                hdf1c602_3  
>> mpmath                    1.1.0                    py37_0  
>> msgpack-python            0.6.1            py37hfd86e86_1  
>> multipledispatch          0.6.0                    py37_0  
>> navigator-updater         0.2.1                    py37_0  
>> nbconvert                 5.6.0                    py37_1  
>> nbformat                  4.4.0                    py37_0  
>> ncurses                   6.1                  he6710b0_1  
>> netcdf4                   1.4.2            py37h808af73_0  
>> networkx                  2.3                        py_0  
>> nltk                      3.4.5                    py37_0  
>> nose                      1.3.7                    py37_2  
>> notebook                  6.0.1                    py37_0  
>> numba                     0.45.1           py37h962f231_0  
>> numexpr                   2.7.0            py37h9e4a6bb_0  
>> numpy                     1.17.2           py37haad9e8e_0  
>> numpy-base                1.17.2           py37hde5b4d6_0  
>> numpydoc                  0.9.1                      py_0  
>> olefile                   0.46                     py37_0  
>> openpyxl                  3.0.0                      py_0  
>> openssl                   1.1.1d               h7b6447c_2  
>> opt_einsum                3.1.0                      py_0  
>> packaging                 19.2                       py_0  
>> pandas                    0.25.1           py37he6710b0_0  
>> pandoc                    2.2.3.2                       0  
>> pandocfilters             1.4.2                    py37_1  
>> pango                     1.42.4               h049681c_0  
>> parquet-cpp               1.5.1                         3    conda-forge
>> parso                     0.5.1                      py_0  
>> partd                     1.0.0                      py_0  
>> patchelf                  0.9                  he6710b0_3  
>> path.py                   12.0.1                     py_0  
>> pathlib2                  2.3.5                    py37_0  
>> patsy                     0.5.1                    py37_0  
>> pcre                      8.43                 he6710b0_0  
>> pep8                      1.7.1                    py37_0  
>> perl                      5.26.2               h14c3975_0  
>> pexpect                   4.7.0                    py37_0  
>> pickleshare               0.7.5                    py37_0  
>> pillow                    6.2.0            py37h34e0f95_0  
>> pip                       19.2.3                   py37_0  
>> pixman                    0.38.0               h7b6447c_0  
>> pkginfo                   1.5.0.1                  py37_0  
>> pluggy                    0.13.0                   py37_0  
>> ply                       3.11                     py37_0  
>> progressbar2              3.37.1                   py37_0  
>> prometheus_client         0.7.1                      py_0  
>> prompt_toolkit            2.0.10                     py_0  
>> protobuf                  3.11.2           py37he6710b0_0  
>> psutil                    5.6.3            py37h7b6447c_0  
>> ptyprocess                0.6.0                    py37_0  
>> py                        1.8.0                    py37_0  
>> py-lief                   0.9.0            py37h7725739_2  
>> pyarrow                   0.11.1          py37hbbcf98d_1002    conda-forge
>> pycodestyle               2.5.0                    py37_0  
>> pycosat                   0.6.3            py37h14c3975_0  
>> pycparser                 2.19                     py37_0  
>> pycrypto                  2.6.1            py37h14c3975_9  
>> pycurl                    7.43.0.3         py37h1ba5d50_0  
>> pyflakes                  2.1.1                    py37_0  
>> pygments                  2.4.2                      py_0  
>> pygpu                     0.7.6            py37h035aef0_0  
>> pylint                    2.4.2                    py37_0  
>> pyodbc                    4.0.27           py37he6710b0_0  
>> pyopenssl                 19.0.0                   py37_0  
>> pyparsing                 2.4.2                      py_0  
>> pyqt                      5.9.2            py37h05f1152_2  
>> pyrsistent                0.15.4           py37h7b6447c_0  
>> pysocks                   1.7.1                    py37_0  
>> pytables                  3.5.2            py37h71ec239_1  
>> pytest                    5.2.1                    py37_0  
>> pytest-arraydiff          0.3              py37h39e3cac_0  
>> pytest-astropy            0.5.0                    py37_0  
>> pytest-doctestplus        0.4.0                      py_0  
>> pytest-openfiles&n


Re: Pyarrow installation--solved

Posted by Igor Yastrebov <ig...@gmail.com>.
Hi Xiaoni,

I strongly advise against doing it this way. If `conda install -c
conda-forge pyarrow` installs pyarrow 0.11.1 in your environment then it
means there is a conflict between versions of packages and you will likely
encounter problems later on.

I advise the following:
1) Remove anaconda
2) Install miniconda instead
3) Install only the packages you need (preferably in a new environment)
4) Do `conda install -c conda-forge pyarrow=0.15.1`
5) Success! If problems remain, resolve conflicts manually

Best regards,
Igor

пт, 10 янв. 2020 г., 0:08 Xiaoni Wang <xi...@obspm.fr>:

> Dear all,
>      Thanks for your input. This problem is now resolved.
>
> 1) removed older version of anaconda
> 2) reinstall anaconda3.7 and other packages
> 3) pip install pyarrow==0.15.*
>
> The import of pyarrow is good now.
>
> Before, I used 'condo install -c conda-forge pyarrow’, and Conda installed
> an older version 0.11.1 automatically, not the latest 0.15. It seems to me
> that the older version of pyarrow may result in the conflicts with other
> packages.
>
> Best regards
> Xiaoni
>
> Le 9 janv. 2020 à 15:40, xxwang <xi...@obspm.fr> a écrit :
>
> Hi Wes
>      Thanks. There seems to be a version conflict problem. I have the
> condo-forge in my channel list. I had installed Pyarrow by 'conda install
> pyarrow’.
> What I did just now:
> 1) I removed Pyarrow by : conda uninstall pyarrow
> 2) Then I tried to reinstall Pyarrow by: conda install pyarrow
> The conda suggested to install Pyarrow-0.11.1. So I installed it. Then I
> got the same error of 'undefined symbol'.
>
> Thanks in advance,
>
> Xiaoni
>
>
> conda list give:
> # packages in environment at /obs/xxwang/anaconda3:
> #
> # Name                    Version                   Build  Channel
> _ipyw_jlab_nb_ext_conf    0.1.0                    py37_0
> _libgcc_mutex             0.1                        main
> _tflow_select             2.3.0                       mkl
> absl-py                   0.8.1                    py37_0
> alabaster                 0.7.12                   py37_0
> anaconda                  2019.10                  py37_0
> anaconda-client           1.7.2                    py37_0
> anaconda-navigator        1.9.7                    py37_0
> anaconda-project          0.8.3                      py_0
> aplus                     0.11.0                     py_1    conda-forge
> arrow-cpp                 0.11.1           py37h3bd774a_1    conda-forge
> asn1crypto                1.0.1                    py37_0
> astor                     0.8.0                    py37_0
> astroid                   2.3.1                    py37_0
> astropy                   3.2.2            py37h7b6447c_0
> atomicwrites              1.3.0                    py37_1
> attrs                     19.2.0                     py_0
> babel                     2.7.0                      py_0
> backcall                  0.1.0                    py37_0
> backports                 1.0                        py_2
> backports.functools_lru_cache 1.6.1                      py_0
> backports.os              0.1.1                    py37_0
> backports.shutil_get_terminal_size 1.0.0                    py37_2
> backports.tempfile        1.0                        py_1
> backports.weakref         1.0.post1                  py_1
> beautifulsoup4            4.8.0                    py37_0
> binutils_impl_linux-64    2.33.1               he6710b0_7
> binutils_linux-64         2.33.1              h9595d00_15
> bitarray                  1.0.1            py37h7b6447c_0
> bkcharts                  0.2                      py37_0
> blas                      1.0                         mkl
> bleach                    3.1.0                    py37_0
> blosc                     1.16.3               hd408876_0
> bokeh                     1.3.4                    py37_0
> boost-cpp                 1.68.0            h11c811c_1000    conda-forge
> boto                      2.49.0                   py37_0
> boto3                     1.10.39                    py_0
> botocore                  1.13.39                    py_0
> bottleneck                1.2.1            py37h035aef0_1
> bqplot                    0.12.2                     py_0    conda-forge
> branca                    0.3.1                      py_0    conda-forge
> bzip2                     1.0.8                h7b6447c_0
> c-ares                    1.15.0            h7b6447c_1001
> ca-certificates           2019.8.28                     0
> cachetools                3.1.1                      py_0    conda-forge
> cairo                     1.14.12              h8948797_3
> certifi                   2019.9.11                py37_0
> cffi                      1.12.3           py37h2e261b9_0
> cftime                    1.0.4.2          py37hdd07704_0
> chardet                   3.0.4                 py37_1003
> click                     7.0                      py37_0
> cloudpickle               1.2.2                      py_0
> clyent                    1.2.2                    py37_1
> colorama                  0.4.1                    py37_0
> conda                     4.7.12                   py37_0
> conda-build               3.18.9                   py37_3
> conda-env                 2.6.0                         1
> conda-package-handling    1.6.0            py37h7b6447c_0
> conda-verify              3.4.2                      py_1
> contextlib2               0.6.0                      py_0
> cryptography              2.7              py37h1ba5d50_0
> curl                      7.65.3               hbc83047_0
> cycler                    0.10.0                   py37_0
> cython                    0.29.13          py37he6710b0_0
> cytoolz                   0.10.0           py37h7b6447c_0
> dask                      2.5.2                      py_0
> dask-core                 2.5.2                      py_0
> dbus                      1.13.6               h746ee38_0
> decorator                 4.4.0                    py37_1
> defusedxml                0.6.0                      py_0
> distributed               2.5.2                      py_0
> docutils                  0.15.2                   py37_0
> entrypoints               0.3                      py37_0
> et_xmlfile                1.0.1                    py37_0
> expat                     2.2.6                he6710b0_0
> fastcache                 1.1.0            py37h7b6447c_0
> filelock                  3.0.12                     py_0
> flask                     1.1.1                      py_0
> fontconfig                2.13.0               h9420a91_0
> freetype                  2.9.1                h8a8886c_1
> fribidi                   1.0.5                h7b6447c_0
> fsspec                    0.5.2                      py_0
> future                    0.18.2                   py37_0
> gast                      0.2.2                    py37_0
> gcc_impl_linux-64         7.3.0                habb00fd_1
> gcc_linux-64              7.3.0               h553295d_15
> get_terminal_size         1.0.0                haa9412d_0
> gevent                    1.4.0            py37h7b6447c_0
> git                       2.23.0          pl526hacde149_0
> glib                      2.56.2               hd408876_0
> glob2                     0.7                        py_0
> gmp                       6.1.2                h6c8ec71_1
> gmpy2                     2.0.8            py37h10f8cd9_2
> google-pasta              0.1.8                      py_0
> graphite2                 1.3.13               h23475e2_0
> greenlet                  0.4.15           py37h7b6447c_0
> grpcio                    1.16.1           py37hf8bcb03_1
> gst-plugins-base          1.14.0               hbbd80ab_1
> gstreamer                 1.14.0               hb453b48_1
> gxx_impl_linux-64         7.3.0                hdf63c60_1
> gxx_linux-64              7.3.0               h553295d_15
> h5py                      2.9.0            py37h7918eee_0
> harfbuzz                  1.8.8                hffaf4a1_0
> hdf4                      4.2.13               h3ca952b_2
> hdf5                      1.10.4               hb1b8bf9_0
> heapdict                  1.0.1                      py_0
> html5lib                  1.0.1                    py37_0
> icu                       58.2                 h9c2bf20_1
> idna                      2.8                      py37_0
> imageio                   2.6.0                    py37_0
> imagesize                 1.1.0                    py37_0
> importlib_metadata        0.23                     py37_0
> intel-openmp              2019.4                      243
> ipydatawidgets            4.0.1                      py_0    conda-forge
> ipykernel                 5.1.2            py37h39e3cac_0
> ipyleaflet                0.11.6                   py37_0    conda-forge
> ipympl                    0.3.3                      py_0
> ipyscales                 0.3.0                      py_0    conda-forge
> ipython                   7.8.0            py37h39e3cac_0
> ipython_genutils          0.2.0                    py37_0
> ipyvolume                 0.5.2                    py37_0    conda-forge
> ipyvue                    1.0.2                      py_0    conda-forge
> ipyvuetify                1.1.1                      py_0    conda-forge
> ipywebrtc                 0.5.0                    py37_0    conda-forge
> ipywidgets                7.5.1                      py_0
> isort                     4.3.21                   py37_0
> itsdangerous              1.1.0                    py37_0
> jbig                      2.1                  hdba287a_0
> jdcal                     1.4.1                      py_0
> jedi                      0.15.1                   py37_0
> jeepney                   0.4.1                      py_0
> jinja2                    2.10.3                     py_0
> jmespath                  0.9.4                      py_0
> joblib                    0.13.2                   py37_0
> jpeg                      9b                   h024ee3a_2
> json5                     0.8.5                      py_0
> jsonschema                3.0.2                    py37_0
> jupyter                   1.0.0                    py37_7
> jupyter_client            5.3.3                    py37_1
> jupyter_console           6.0.0                    py37_0
> jupyter_core              4.5.0                      py_0
> jupyterlab                1.1.4              pyhf63ae98_0
> jupyterlab_server         1.0.6                      py_0
> keras                     2.3.1                    py37_0    conda-forge
> keras-applications        1.0.8                      py_0
> keras-preprocessing       1.1.0                      py_1
> keyring                   18.0.0                   py37_0
> kiwisolver                1.1.0            py37he6710b0_0
> krb5                      1.16.1               h173b8e3_7
> lazy-object-proxy         1.4.2            py37h7b6447c_0
> ld_impl_linux-64          2.33.1               h53a641e_7
> libarchive                3.3.3                h5d8350f_5
> libcurl                   7.65.3               h20c2e04_0
> libedit                   3.1.20181209         hc058e9b_0
> libevent                  2.1.8                h1ba5d50_0
> libffi                    3.2.1                hd88cf55_4
> libgcc-ng                 9.1.0                hdf63c60_0
> libgfortran-ng            7.3.0                hdf63c60_0
> libgpuarray               0.7.6                h14c3975_0
> liblief                   0.9.0                h7725739_2
> libnetcdf                 4.6.1                h11d0813_2
> libpng                    1.6.37               hbc83047_0
> libprotobuf               3.11.2               hd408876_0
> libsodium                 1.0.16               h1bed415_0
> libssh2                   1.8.2                h1ba5d50_0
> libstdcxx-ng              9.1.0                hdf63c60_0
> libtiff                   4.0.10               h2733197_2
> libtool                   2.4.6                h7b6447c_5
> libuuid                   1.0.3                h1bed415_2
> libxcb                    1.13                 h1bed415_1
> libxml2                   2.9.9                hea5a465_1
> libxslt                   1.1.33               h7d1a2b0_0
> llvmlite                  0.29.0           py37hd408876_0
> locket                    0.2.0                    py37_1
> lxml                      4.4.1            py37hefd8a0e_0
> lz4-c                     1.8.1.2              h14c3975_0
> lzo                       2.10                 h49e0be7_2
> mako                      1.1.0                      py_0
> markdown                  3.1.1                    py37_0
> markupsafe                1.1.1            py37h7b6447c_0
> matplotlib                3.1.1            py37h5429711_0
> mccabe                    0.6.1                    py37_1
> mistune                   0.8.4            py37h7b6447c_0
> mkl                       2019.4                      243
> mkl-service               2.3.0            py37he904b0f_0
> mkl_fft                   1.0.14           py37ha843d7b_0
> mkl_random                1.1.0            py37hd6b4f25_0
> mock                      3.0.5                    py37_0
> more-itertools            7.2.0                    py37_0
> mpc                       1.1.0                h10f8cd9_1
> mpfr                      4.0.1                hdf1c602_3
> mpmath                    1.1.0                    py37_0
> msgpack-python            0.6.1            py37hfd86e86_1
> multipledispatch          0.6.0                    py37_0
> navigator-updater         0.2.1                    py37_0
> nbconvert                 5.6.0                    py37_1
> nbformat                  4.4.0                    py37_0
> ncurses                   6.1                  he6710b0_1
> netcdf4                   1.4.2            py37h808af73_0
> networkx                  2.3                        py_0
> nltk                      3.4.5                    py37_0
> nose                      1.3.7                    py37_2
> notebook                  6.0.1                    py37_0
> numba                     0.45.1           py37h962f231_0
> numexpr                   2.7.0            py37h9e4a6bb_0
> numpy                     1.17.2           py37haad9e8e_0
> numpy-base                1.17.2           py37hde5b4d6_0
> numpydoc                  0.9.1                      py_0
> olefile                   0.46                     py37_0
> openpyxl                  3.0.0                      py_0
> openssl                   1.1.1d               h7b6447c_2
> opt_einsum                3.1.0                      py_0
> packaging                 19.2                       py_0
> pandas                    0.25.1           py37he6710b0_0
> pandoc                    2.2.3.2                       0
> pandocfilters             1.4.2                    py37_1
> pango                     1.42.4               h049681c_0
> parquet-cpp               1.5.1                         3    conda-forge
> parso                     0.5.1                      py_0
> partd                     1.0.0                      py_0
> patchelf                  0.9                  he6710b0_3
> path.py                   12.0.1                     py_0
> pathlib2                  2.3.5                    py37_0
> patsy                     0.5.1                    py37_0
> pcre                      8.43                 he6710b0_0
> pep8                      1.7.1                    py37_0
> perl                      5.26.2               h14c3975_0
> pexpect                   4.7.0                    py37_0
> pickleshare               0.7.5                    py37_0
> pillow                    6.2.0            py37h34e0f95_0
> pip                       19.2.3                   py37_0
> pixman                    0.38.0               h7b6447c_0
> pkginfo                   1.5.0.1                  py37_0
> pluggy                    0.13.0                   py37_0
> ply                       3.11                     py37_0
> progressbar2              3.37.1                   py37_0
> prometheus_client         0.7.1                      py_0
> prompt_toolkit            2.0.10                     py_0
> protobuf                  3.11.2           py37he6710b0_0
> psutil                    5.6.3            py37h7b6447c_0
> ptyprocess                0.6.0                    py37_0
> py                        1.8.0                    py37_0
> py-lief                   0.9.0            py37h7725739_2
> pyarrow                   0.11.1          py37hbbcf98d_1002    conda-forge
> pycodestyle               2.5.0                    py37_0
> pycosat                   0.6.3            py37h14c3975_0
> pycparser                 2.19                     py37_0
> pycrypto                  2.6.1            py37h14c3975_9
> pycurl                    7.43.0.3         py37h1ba5d50_0
> pyflakes                  2.1.1                    py37_0
> pygments                  2.4.2                      py_0
> pygpu                     0.7.6            py37h035aef0_0
> pylint                    2.4.2                    py37_0
> pyodbc                    4.0.27           py37he6710b0_0
> pyopenssl                 19.0.0                   py37_0
> pyparsing                 2.4.2                      py_0
> pyqt                      5.9.2            py37h05f1152_2
> pyrsistent                0.15.4           py37h7b6447c_0
> pysocks                   1.7.1                    py37_0
> pytables                  3.5.2            py37h71ec239_1
> pytest                    5.2.1                    py37_0
> pytest-arraydiff          0.3              py37h39e3cac_0
> pytest-astropy            0.5.0                    py37_0
> pytest-doctestplus        0.4.0                      py_0
> pytest-openfiles&n
>
>

Re: Pyarrow installation--solved

Posted by Xiaoni Wang <xi...@obspm.fr>.
Dear all,
     Thanks for your input. This problem is now resolved.

1) removed older version of anaconda
2) reinstall anaconda3.7 and other packages
3) pip install pyarrow==0.15.*

The import of pyarrow is good now. 

Before, I used 'condo install -c conda-forge pyarrow’, and Conda installed an older version 0.11.1 automatically, not the latest 0.15. It seems to me that the older version of pyarrow may result in the conflicts with other packages.

Best regards
Xiaoni

Le 9 janv. 2020 à 15:40, xxwang <xi...@obspm.fr> a écrit :

> Hi Wes
>      Thanks. There seems to be a version conflict problem. I have the condo-forge in my channel list. I had installed Pyarrow by 'conda install pyarrow’.
> What I did just now:
> 1) I removed Pyarrow by : conda uninstall pyarrow
> 2) Then I tried to reinstall Pyarrow by: conda install pyarrow
> The conda suggested to install Pyarrow-0.11.1. So I installed it. Then I got the same error of 'undefined symbol'.
> 
> Thanks in advance,
> 
> Xiaoni
> 
> 
> conda list give:
> # packages in environment at /obs/xxwang/anaconda3:
> #
> # Name                    Version                   Build  Channel
> _ipyw_jlab_nb_ext_conf    0.1.0                    py37_0  
> _libgcc_mutex             0.1                        main  
> _tflow_select             2.3.0                       mkl  
> absl-py                   0.8.1                    py37_0  
> alabaster                 0.7.12                   py37_0  
> anaconda                  2019.10                  py37_0  
> anaconda-client           1.7.2                    py37_0  
> anaconda-navigator        1.9.7                    py37_0  
> anaconda-project          0.8.3                      py_0  
> aplus                     0.11.0                     py_1    conda-forge
> arrow-cpp                 0.11.1           py37h3bd774a_1    conda-forge
> asn1crypto                1.0.1                    py37_0  
> astor                     0.8.0                    py37_0  
> astroid                   2.3.1                    py37_0  
> astropy                   3.2.2            py37h7b6447c_0  
> atomicwrites              1.3.0                    py37_1  
> attrs                     19.2.0                     py_0  
> babel                     2.7.0                      py_0  
> backcall                  0.1.0                    py37_0  
> backports                 1.0                        py_2  
> backports.functools_lru_cache 1.6.1                      py_0  
> backports.os              0.1.1                    py37_0  
> backports.shutil_get_terminal_size 1.0.0                    py37_2  
> backports.tempfile        1.0                        py_1  
> backports.weakref         1.0.post1                  py_1  
> beautifulsoup4            4.8.0                    py37_0  
> binutils_impl_linux-64    2.33.1               he6710b0_7  
> binutils_linux-64         2.33.1              h9595d00_15  
> bitarray                  1.0.1            py37h7b6447c_0  
> bkcharts                  0.2                      py37_0  
> blas                      1.0                         mkl  
> bleach                    3.1.0                    py37_0  
> blosc                     1.16.3               hd408876_0  
> bokeh                     1.3.4                    py37_0  
> boost-cpp                 1.68.0            h11c811c_1000    conda-forge
> boto                      2.49.0                   py37_0  
> boto3                     1.10.39                    py_0  
> botocore                  1.13.39                    py_0  
> bottleneck                1.2.1            py37h035aef0_1  
> bqplot                    0.12.2                     py_0    conda-forge
> branca                    0.3.1                      py_0    conda-forge
> bzip2                     1.0.8                h7b6447c_0  
> c-ares                    1.15.0            h7b6447c_1001  
> ca-certificates           2019.8.28                     0  
> cachetools                3.1.1                      py_0    conda-forge
> cairo                     1.14.12              h8948797_3  
> certifi                   2019.9.11                py37_0  
> cffi                      1.12.3           py37h2e261b9_0  
> cftime                    1.0.4.2          py37hdd07704_0  
> chardet                   3.0.4                 py37_1003  
> click                     7.0                      py37_0  
> cloudpickle               1.2.2                      py_0  
> clyent                    1.2.2                    py37_1  
> colorama                  0.4.1                    py37_0  
> conda                     4.7.12                   py37_0  
> conda-build               3.18.9                   py37_3  
> conda-env                 2.6.0                         1  
> conda-package-handling    1.6.0            py37h7b6447c_0  
> conda-verify              3.4.2                      py_1  
> contextlib2               0.6.0                      py_0  
> cryptography              2.7              py37h1ba5d50_0  
> curl                      7.65.3               hbc83047_0  
> cycler                    0.10.0                   py37_0  
> cython                    0.29.13          py37he6710b0_0  
> cytoolz                   0.10.0           py37h7b6447c_0  
> dask                      2.5.2                      py_0  
> dask-core                 2.5.2                      py_0  
> dbus                      1.13.6               h746ee38_0  
> decorator                 4.4.0                    py37_1  
> defusedxml                0.6.0                      py_0  
> distributed               2.5.2                      py_0  
> docutils                  0.15.2                   py37_0  
> entrypoints               0.3                      py37_0  
> et_xmlfile                1.0.1                    py37_0  
> expat                     2.2.6                he6710b0_0  
> fastcache                 1.1.0            py37h7b6447c_0  
> filelock                  3.0.12                     py_0  
> flask                     1.1.1                      py_0  
> fontconfig                2.13.0               h9420a91_0  
> freetype                  2.9.1                h8a8886c_1  
> fribidi                   1.0.5                h7b6447c_0  
> fsspec                    0.5.2                      py_0  
> future                    0.18.2                   py37_0  
> gast                      0.2.2                    py37_0  
> gcc_impl_linux-64         7.3.0                habb00fd_1  
> gcc_linux-64              7.3.0               h553295d_15  
> get_terminal_size         1.0.0                haa9412d_0  
> gevent                    1.4.0            py37h7b6447c_0  
> git                       2.23.0          pl526hacde149_0  
> glib                      2.56.2               hd408876_0  
> glob2                     0.7                        py_0  
> gmp                       6.1.2                h6c8ec71_1  
> gmpy2                     2.0.8            py37h10f8cd9_2  
> google-pasta              0.1.8                      py_0  
> graphite2                 1.3.13               h23475e2_0  
> greenlet                  0.4.15           py37h7b6447c_0  
> grpcio                    1.16.1           py37hf8bcb03_1  
> gst-plugins-base          1.14.0               hbbd80ab_1  
> gstreamer                 1.14.0               hb453b48_1  
> gxx_impl_linux-64         7.3.0                hdf63c60_1  
> gxx_linux-64              7.3.0               h553295d_15  
> h5py                      2.9.0            py37h7918eee_0  
> harfbuzz                  1.8.8                hffaf4a1_0  
> hdf4                      4.2.13               h3ca952b_2  
> hdf5                      1.10.4               hb1b8bf9_0  
> heapdict                  1.0.1                      py_0  
> html5lib                  1.0.1                    py37_0  
> icu                       58.2                 h9c2bf20_1  
> idna                      2.8                      py37_0  
> imageio                   2.6.0                    py37_0  
> imagesize                 1.1.0                    py37_0  
> importlib_metadata        0.23                     py37_0  
> intel-openmp              2019.4                      243  
> ipydatawidgets            4.0.1                      py_0    conda-forge
> ipykernel                 5.1.2            py37h39e3cac_0  
> ipyleaflet                0.11.6                   py37_0    conda-forge
> ipympl                    0.3.3                      py_0  
> ipyscales                 0.3.0                      py_0    conda-forge
> ipython                   7.8.0            py37h39e3cac_0  
> ipython_genutils          0.2.0                    py37_0  
> ipyvolume                 0.5.2                    py37_0    conda-forge
> ipyvue                    1.0.2                      py_0    conda-forge
> ipyvuetify                1.1.1                      py_0    conda-forge
> ipywebrtc                 0.5.0                    py37_0    conda-forge
> ipywidgets                7.5.1                      py_0  
> isort                     4.3.21                   py37_0  
> itsdangerous              1.1.0                    py37_0  
> jbig                      2.1                  hdba287a_0  
> jdcal                     1.4.1                      py_0  
> jedi                      0.15.1                   py37_0  
> jeepney                   0.4.1                      py_0  
> jinja2                    2.10.3                     py_0  
> jmespath                  0.9.4                      py_0  
> joblib                    0.13.2                   py37_0  
> jpeg                      9b                   h024ee3a_2  
> json5                     0.8.5                      py_0  
> jsonschema                3.0.2                    py37_0  
> jupyter                   1.0.0                    py37_7  
> jupyter_client            5.3.3                    py37_1  
> jupyter_console           6.0.0                    py37_0  
> jupyter_core              4.5.0                      py_0  
> jupyterlab                1.1.4              pyhf63ae98_0  
> jupyterlab_server         1.0.6                      py_0  
> keras                     2.3.1                    py37_0    conda-forge
> keras-applications        1.0.8                      py_0  
> keras-preprocessing       1.1.0                      py_1  
> keyring                   18.0.0                   py37_0  
> kiwisolver                1.1.0            py37he6710b0_0  
> krb5                      1.16.1               h173b8e3_7  
> lazy-object-proxy         1.4.2            py37h7b6447c_0  
> ld_impl_linux-64          2.33.1               h53a641e_7  
> libarchive                3.3.3                h5d8350f_5  
> libcurl                   7.65.3               h20c2e04_0  
> libedit                   3.1.20181209         hc058e9b_0  
> libevent                  2.1.8                h1ba5d50_0  
> libffi                    3.2.1                hd88cf55_4  
> libgcc-ng                 9.1.0                hdf63c60_0  
> libgfortran-ng            7.3.0                hdf63c60_0  
> libgpuarray               0.7.6                h14c3975_0  
> liblief                   0.9.0                h7725739_2  
> libnetcdf                 4.6.1                h11d0813_2  
> libpng                    1.6.37               hbc83047_0  
> libprotobuf               3.11.2               hd408876_0  
> libsodium                 1.0.16               h1bed415_0  
> libssh2                   1.8.2                h1ba5d50_0  
> libstdcxx-ng              9.1.0                hdf63c60_0  
> libtiff                   4.0.10               h2733197_2  
> libtool                   2.4.6                h7b6447c_5  
> libuuid                   1.0.3                h1bed415_2  
> libxcb                    1.13                 h1bed415_1  
> libxml2                   2.9.9                hea5a465_1  
> libxslt                   1.1.33               h7d1a2b0_0  
> llvmlite                  0.29.0           py37hd408876_0  
> locket                    0.2.0                    py37_1  
> lxml                      4.4.1            py37hefd8a0e_0  
> lz4-c                     1.8.1.2              h14c3975_0  
> lzo                       2.10                 h49e0be7_2  
> mako                      1.1.0                      py_0  
> markdown                  3.1.1                    py37_0  
> markupsafe                1.1.1            py37h7b6447c_0  
> matplotlib                3.1.1            py37h5429711_0  
> mccabe                    0.6.1                    py37_1  
> mistune                   0.8.4            py37h7b6447c_0  
> mkl                       2019.4                      243  
> mkl-service               2.3.0            py37he904b0f_0  
> mkl_fft                   1.0.14           py37ha843d7b_0  
> mkl_random                1.1.0            py37hd6b4f25_0  
> mock                      3.0.5                    py37_0  
> more-itertools            7.2.0                    py37_0  
> mpc                       1.1.0                h10f8cd9_1  
> mpfr                      4.0.1                hdf1c602_3  
> mpmath                    1.1.0                    py37_0  
> msgpack-python            0.6.1            py37hfd86e86_1  
> multipledispatch          0.6.0                    py37_0  
> navigator-updater         0.2.1                    py37_0  
> nbconvert                 5.6.0                    py37_1  
> nbformat                  4.4.0                    py37_0  
> ncurses                   6.1                  he6710b0_1  
> netcdf4                   1.4.2            py37h808af73_0  
> networkx                  2.3                        py_0  
> nltk                      3.4.5                    py37_0  
> nose                      1.3.7                    py37_2  
> notebook                  6.0.1                    py37_0  
> numba                     0.45.1           py37h962f231_0  
> numexpr                   2.7.0            py37h9e4a6bb_0  
> numpy                     1.17.2           py37haad9e8e_0  
> numpy-base                1.17.2           py37hde5b4d6_0  
> numpydoc                  0.9.1                      py_0  
> olefile                   0.46                     py37_0  
> openpyxl                  3.0.0                      py_0  
> openssl                   1.1.1d               h7b6447c_2  
> opt_einsum                3.1.0                      py_0  
> packaging                 19.2                       py_0  
> pandas                    0.25.1           py37he6710b0_0  
> pandoc                    2.2.3.2                       0  
> pandocfilters             1.4.2                    py37_1  
> pango                     1.42.4               h049681c_0  
> parquet-cpp               1.5.1                         3    conda-forge
> parso                     0.5.1                      py_0  
> partd                     1.0.0                      py_0  
> patchelf                  0.9                  he6710b0_3  
> path.py                   12.0.1                     py_0  
> pathlib2                  2.3.5                    py37_0  
> patsy                     0.5.1                    py37_0  
> pcre                      8.43                 he6710b0_0  
> pep8                      1.7.1                    py37_0  
> perl                      5.26.2               h14c3975_0  
> pexpect                   4.7.0                    py37_0  
> pickleshare               0.7.5                    py37_0  
> pillow                    6.2.0            py37h34e0f95_0  
> pip                       19.2.3                   py37_0  
> pixman                    0.38.0               h7b6447c_0  
> pkginfo                   1.5.0.1                  py37_0  
> pluggy                    0.13.0                   py37_0  
> ply                       3.11                     py37_0  
> progressbar2              3.37.1                   py37_0  
> prometheus_client         0.7.1                      py_0  
> prompt_toolkit            2.0.10                     py_0  
> protobuf                  3.11.2           py37he6710b0_0  
> psutil                    5.6.3            py37h7b6447c_0  
> ptyprocess                0.6.0                    py37_0  
> py                        1.8.0                    py37_0  
> py-lief                   0.9.0            py37h7725739_2  
> pyarrow                   0.11.1          py37hbbcf98d_1002    conda-forge
> pycodestyle               2.5.0                    py37_0  
> pycosat                   0.6.3            py37h14c3975_0  
> pycparser                 2.19                     py37_0  
> pycrypto                  2.6.1            py37h14c3975_9  
> pycurl                    7.43.0.3         py37h1ba5d50_0  
> pyflakes                  2.1.1                    py37_0  
> pygments                  2.4.2                      py_0  
> pygpu                     0.7.6            py37h035aef0_0  
> pylint                    2.4.2                    py37_0  
> pyodbc                    4.0.27           py37he6710b0_0  
> pyopenssl                 19.0.0                   py37_0  
> pyparsing                 2.4.2                      py_0  
> pyqt                      5.9.2            py37h05f1152_2  
> pyrsistent                0.15.4           py37h7b6447c_0  
> pysocks                   1.7.1                    py37_0  
> pytables                  3.5.2            py37h71ec239_1  
> pytest                    5.2.1                    py37_0  
> pytest-arraydiff          0.3              py37h39e3cac_0  
> pytest-astropy            0.5.0                    py37_0  
> pytest-doctestplus        0.4.0                      py_0  
> pytest-openfiles          0.4.0                      py_0  
> pytest-remotedata         0.3.2                    py37_0  
> pytest-runner             5.2                        py_0  
> python                    3.7.4                h265db76_1  
> python-dateutil           2.8.0                    py37_0  
> python-libarchive-c       2.8                     py37_13  
> python-utils              2.3.0                    py37_0  
> pythreejs                 2.1.1                      py_0    conda-forge
> pytz                      2019.3                     py_0  
> pywavelets                1.0.3            py37hdd07704_1  
> pyyaml                    5.1.2            py37h7b6447c_0  
> pyzmq                     18.1.0           py37he6710b0_0  
> qt                        5.9.7                h5867ecd_1  
> qtawesome                 0.6.0                      py_0  
> qtconsole                 4.5.5                      py_0  
> qtpy                      1.9.0                      py_0  
> readline                  7.0                  h7b6447c_5  
> requests                  2.22.0                   py37_0  
> ripgrep                   0.10.0               hc07d326_0  
> rope                      0.14.0                     py_0  
> ruamel_yaml               0.15.46          py37h14c3975_0  
> s3fs                      0.2.0                    py37_0  
> s3transfer                0.2.1                    py37_0  
> scikit-image              0.15.0           py37he6710b0_0  
> scikit-learn              0.21.3           py37hd81dba3_0  
> scipy                     1.3.1            py37h7c811a0_0  
> seaborn                   0.9.0                    py37_0  
> secretstorage             3.1.1                    py37_0  
> send2trash                1.5.0                    py37_0  
> setuptools                41.4.0                   py37_0  
> simplegeneric             0.8.1                    py37_2  
> singledispatch            3.4.0.3                  py37_0  
> sip                       4.19.8           py37hf484d3e_0  
> six                       1.12.0                   py37_0  
> snappy                    1.1.7                hbae5bb6_3  
> snowballstemmer           2.0.0                      py_0  
> sortedcollections         1.1.2                    py37_0  
> sortedcontainers          2.1.0                    py37_0  
> soupsieve                 1.9.3                    py37_0  
> sphinx                    2.2.0                      py_0  
> sphinxcontrib             1.0                      py37_1  
> sphinxcontrib-applehelp   1.0.1                      py_0  
> sphinxcontrib-devhelp     1.0.1                      py_0  
> sphinxcontrib-htmlhelp    1.0.2                      py_0  
> sphinxcontrib-jsmath      1.0.1                      py_0  
> sphinxcontrib-qthelp      1.0.2                      py_0  
> sphinxcontrib-serializinghtml 1.1.3                      py_0  
> sphinxcontrib-websupport  1.1.2                      py_0  
> spyder                    3.3.6                    py37_0  
> spyder-kernels            0.5.2                    py37_0  
> sqlalchemy                1.3.9            py37h7b6447c_0  
> sqlite                    3.30.0               h7b6447c_0  
> statsmodels               0.10.1           py37hdd07704_0  
> sympy                     1.4                      py37_0  
> tabulate                  0.8.3                    py37_0  
> tbb                       2019.4               hfd86e86_0  
> tblib                     1.4.0                      py_0  
> tensorboard               2.0.0              pyhb38c66f_1  
> tensorflow                2.0.0           mkl_py37h66b46cc_0  
> tensorflow-base           2.0.0           mkl_py37h9204916_0  
> tensorflow-estimator      2.0.0              pyh2649769_0  
> termcolor                 1.1.0                    py37_1  
> terminado                 0.8.2                    py37_0  
> testpath                  0.4.2                    py37_0  
> theano                    1.0.4            py37hfd86e86_0  
> thrift-cpp                0.11.0               h02b749d_3  
> tk                        8.6.8                hbc83047_0  
> toolz                     0.10.0                     py_0  
> tornado                   6.0.3            py37h7b6447c_0  
> tqdm                      4.36.1                     py_0  
> traitlets                 4.3.3                    py37_0  
> traittypes                0.2.1                      py_1    conda-forge
> unicodecsv                0.14.1                   py37_0  
> unixodbc                  2.3.7                h14c3975_0  
> urllib3                   1.24.2                   py37_0  
> vaex                      2.5.0                      py_0    conda-forge
> vaex-arrow                0.4.2                      py_0    conda-forge
> vaex-astro                0.6.1                      py_1    conda-forge
> vaex-core                 1.4.0            py37hb3f55d8_0    conda-forge
> vaex-hdf5                 0.5.6                      py_0    conda-forge
> vaex-jupyter              0.4.1                      py_0    conda-forge
> vaex-ml                   0.7.0                      py_0    conda-forge
> vaex-server               0.2.1                      py_0    conda-forge
> vaex-viz                  0.3.8                      py_0    conda-forge
> wcwidth                   0.1.7                    py37_0  
> webencodings              0.5.1                    py37_1  
> werkzeug                  0.16.0                     py_0  
> wheel                     0.33.6                   py37_0  
> widgetsnbextension        3.5.1                    py37_0  
> wrapt                     1.11.2           py37h7b6447c_0  
> wurlitzer                 1.0.3                    py37_0  
> xarray                    0.14.1                     py_1  
> xlrd                      1.2.0                    py37_0  
> xlsxwriter                1.2.1                      py_0  
> xlwt                      1.3.0                    py37_0  
> xz                        5.2.4                h14c3975_4  
> yaml                      0.1.7                had09818_2  
> zeromq                    4.3.1                he6710b0_3  
> zict                      1.0.0                      py_0  
> zipp                      0.6.0                      py_0  
> zlib                      1.2.11               h7b6447c_3  
> zstd                      1.3.7                h0b5b093_0  
> 
>> Le 9 janv. 2020 à 15:03, Wes McKinney <we...@gmail.com> a écrit :
>> 
>> hi,
>> 
>> Can you show the commands you used to install pyarrow? Please also
>> show the output of
>> 
>> conda list
>> 
>> It looks like you have conflicting library versions installed (for
>> example pyarrow or arrow-cpp from conda combined with pyarrow from
>> PyPI)
>> 
>> - Wes
>> 
>> On Thu, Jan 9, 2020 at 7:59 AM xxwang <xi...@obspm.fr> wrote:
>>> 
>>> Dear all,
>>>    I removed my previous anaconda by rm ~/anaconda. Then I reinstalled the anaconda3 and packages (Pyarrow included). But I still got the errors:
>>> anaconda3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev
>>> 
>>> 
>>>    Thanks in advance !
>>> 
>>> Best regards
>>> 
>>> Xiaoni
>>> 
>>> Le 7 janv. 2020 à 16:04, Uwe L. Korn <uw...@xhochy.com> a écrit :
>>> 
>>> Hello Xiaoni,
>>> 
>>> it seems that you have a conda environment and also installed pyarrow with conda before. Mixing pip and conda installs of pyarrow is not going to work. Please recreate your conda environment and install pyarrow from conda forge using "conda config --add channels conda-forge && conda install pyarrow".
>>> 
>>> Cheers
>>> Uwe
>>> 
>>> On Tue, Jan 7, 2020, at 3:15 PM, xxwang wrote:
>>> 
>>> Dear all,
>>>     I tried to installed Pyarrow (within python 3.7), by using pip install pyarrow. The installation seems OK. But when I do «  import pyarrow», then there is an error as below. I do not understand why ….. If you could give some help, I will greatly appreciate !
>>> 
>>> Best regards
>>> Xiaoni
>>> 
>>> .conda/envs/python3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev
>>> 
>>> 
> 


Re: Pyarrow installation

Posted by xxwang <xi...@obspm.fr>.
Just to give complete information of errors:

ImportError                               Traceback (most recent call last)
<ipython-input-1-f1048abcb32d> in <module>
----> 1 import pyarrow

~/anaconda3/lib/python3.7/site-packages/pyarrow/__init__.py in <module>
     52 
     53 
---> 54 from pyarrow.lib import cpu_count, set_cpu_count
     55 from pyarrow.lib import (null, bool_,
     56                          int8, int16, int32, int64,

ImportError: ~/anaconda3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev



> Le 9 janv. 2020 à 15:40, xxwang <xi...@obspm.fr> a écrit :
> 
> Hi Wes
>      Thanks. There seems to be a version conflict problem. I have the condo-forge in my channel list. I had installed Pyarrow by 'conda install pyarrow’.
> What I did just now:
> 1) I removed Pyarrow by : conda uninstall pyarrow
> 2) Then I tried to reinstall Pyarrow by: conda install pyarrow
> The conda suggested to install Pyarrow-0.11.1. So I installed it. Then I got the same error of 'undefined symbol'.
> 
> Thanks in advance,
> 
> Xiaoni
> 
> 
> conda list give:
> # packages in environment at /obs/xxwang/anaconda3:
> #
> # Name                    Version                   Build  Channel
> _ipyw_jlab_nb_ext_conf    0.1.0                    py37_0  
> _libgcc_mutex             0.1                        main  
> _tflow_select             2.3.0                       mkl  
> absl-py                   0.8.1                    py37_0  
> alabaster                 0.7.12                   py37_0  
> anaconda                  2019.10                  py37_0  
> anaconda-client           1.7.2                    py37_0  
> anaconda-navigator        1.9.7                    py37_0  
> anaconda-project          0.8.3                      py_0  
> aplus                     0.11.0                     py_1    conda-forge
> arrow-cpp                 0.11.1           py37h3bd774a_1    conda-forge
> asn1crypto                1.0.1                    py37_0  
> astor                     0.8.0                    py37_0  
> astroid                   2.3.1                    py37_0  
> astropy                   3.2.2            py37h7b6447c_0  
> atomicwrites              1.3.0                    py37_1  
> attrs                     19.2.0                     py_0  
> babel                     2.7.0                      py_0  
> backcall                  0.1.0                    py37_0  
> backports                 1.0                        py_2  
> backports.functools_lru_cache 1.6.1                      py_0  
> backports.os              0.1.1                    py37_0  
> backports.shutil_get_terminal_size 1.0.0                    py37_2  
> backports.tempfile        1.0                        py_1  
> backports.weakref         1.0.post1                  py_1  
> beautifulsoup4            4.8.0                    py37_0  
> binutils_impl_linux-64    2.33.1               he6710b0_7  
> binutils_linux-64         2.33.1              h9595d00_15  
> bitarray                  1.0.1            py37h7b6447c_0  
> bkcharts                  0.2                      py37_0  
> blas                      1.0                         mkl  
> bleach                    3.1.0                    py37_0  
> blosc                     1.16.3               hd408876_0  
> bokeh                     1.3.4                    py37_0  
> boost-cpp                 1.68.0            h11c811c_1000    conda-forge
> boto                      2.49.0                   py37_0  
> boto3                     1.10.39                    py_0  
> botocore                  1.13.39                    py_0  
> bottleneck                1.2.1            py37h035aef0_1  
> bqplot                    0.12.2                     py_0    conda-forge
> branca                    0.3.1                      py_0    conda-forge
> bzip2                     1.0.8                h7b6447c_0  
> c-ares                    1.15.0            h7b6447c_1001  
> ca-certificates           2019.8.28                     0  
> cachetools                3.1.1                      py_0    conda-forge
> cairo                     1.14.12              h8948797_3  
> certifi                   2019.9.11                py37_0  
> cffi                      1.12.3           py37h2e261b9_0  
> cftime                    1.0.4.2          py37hdd07704_0  
> chardet                   3.0.4                 py37_1003  
> click                     7.0                      py37_0  
> cloudpickle               1.2.2                      py_0  
> clyent                    1.2.2                    py37_1  
> colorama                  0.4.1                    py37_0  
> conda                     4.7.12                   py37_0  
> conda-build               3.18.9                   py37_3  
> conda-env                 2.6.0                         1  
> conda-package-handling    1.6.0            py37h7b6447c_0  
> conda-verify              3.4.2                      py_1  
> contextlib2               0.6.0                      py_0  
> cryptography              2.7              py37h1ba5d50_0  
> curl                      7.65.3               hbc83047_0  
> cycler                    0.10.0                   py37_0  
> cython                    0.29.13          py37he6710b0_0  
> cytoolz                   0.10.0           py37h7b6447c_0  
> dask                      2.5.2                      py_0  
> dask-core                 2.5.2                      py_0  
> dbus                      1.13.6               h746ee38_0  
> decorator                 4.4.0                    py37_1  
> defusedxml                0.6.0                      py_0  
> distributed               2.5.2                      py_0  
> docutils                  0.15.2                   py37_0  
> entrypoints               0.3                      py37_0  
> et_xmlfile                1.0.1                    py37_0  
> expat                     2.2.6                he6710b0_0  
> fastcache                 1.1.0            py37h7b6447c_0  
> filelock                  3.0.12                     py_0  
> flask                     1.1.1                      py_0  
> fontconfig                2.13.0               h9420a91_0  
> freetype                  2.9.1                h8a8886c_1  
> fribidi                   1.0.5                h7b6447c_0  
> fsspec                    0.5.2                      py_0  
> future                    0.18.2                   py37_0  
> gast                      0.2.2                    py37_0  
> gcc_impl_linux-64         7.3.0                habb00fd_1  
> gcc_linux-64              7.3.0               h553295d_15  
> get_terminal_size         1.0.0                haa9412d_0  
> gevent                    1.4.0            py37h7b6447c_0  
> git                       2.23.0          pl526hacde149_0  
> glib                      2.56.2               hd408876_0  
> glob2                     0.7                        py_0  
> gmp                       6.1.2                h6c8ec71_1  
> gmpy2                     2.0.8            py37h10f8cd9_2  
> google-pasta              0.1.8                      py_0  
> graphite2                 1.3.13               h23475e2_0  
> greenlet                  0.4.15           py37h7b6447c_0  
> grpcio                    1.16.1           py37hf8bcb03_1  
> gst-plugins-base          1.14.0               hbbd80ab_1  
> gstreamer                 1.14.0               hb453b48_1  
> gxx_impl_linux-64         7.3.0                hdf63c60_1  
> gxx_linux-64              7.3.0               h553295d_15  
> h5py                      2.9.0            py37h7918eee_0  
> harfbuzz                  1.8.8                hffaf4a1_0  
> hdf4                      4.2.13               h3ca952b_2  
> hdf5                      1.10.4               hb1b8bf9_0  
> heapdict                  1.0.1                      py_0  
> html5lib                  1.0.1                    py37_0  
> icu                       58.2                 h9c2bf20_1  
> idna                      2.8                      py37_0  
> imageio                   2.6.0                    py37_0  
> imagesize                 1.1.0                    py37_0  
> importlib_metadata        0.23                     py37_0  
> intel-openmp              2019.4                      243  
> ipydatawidgets            4.0.1                      py_0    conda-forge
> ipykernel                 5.1.2            py37h39e3cac_0  
> ipyleaflet                0.11.6                   py37_0    conda-forge
> ipympl                    0.3.3                      py_0  
> ipyscales                 0.3.0                      py_0    conda-forge
> ipython                   7.8.0            py37h39e3cac_0  
> ipython_genutils          0.2.0                    py37_0  
> ipyvolume                 0.5.2                    py37_0    conda-forge
> ipyvue                    1.0.2                      py_0    conda-forge
> ipyvuetify                1.1.1                      py_0    conda-forge
> ipywebrtc                 0.5.0                    py37_0    conda-forge
> ipywidgets                7.5.1                      py_0  
> isort                     4.3.21                   py37_0  
> itsdangerous              1.1.0                    py37_0  
> jbig                      2.1                  hdba287a_0  
> jdcal                     1.4.1                      py_0  
> jedi                      0.15.1                   py37_0  
> jeepney                   0.4.1                      py_0  
> jinja2                    2.10.3                     py_0  
> jmespath                  0.9.4                      py_0  
> joblib                    0.13.2                   py37_0  
> jpeg                      9b                   h024ee3a_2  
> json5                     0.8.5                      py_0  
> jsonschema                3.0.2                    py37_0  
> jupyter                   1.0.0                    py37_7  
> jupyter_client            5.3.3                    py37_1  
> jupyter_console           6.0.0                    py37_0  
> jupyter_core              4.5.0                      py_0  
> jupyterlab                1.1.4              pyhf63ae98_0  
> jupyterlab_server         1.0.6                      py_0  
> keras                     2.3.1                    py37_0    conda-forge
> keras-applications        1.0.8                      py_0  
> keras-preprocessing       1.1.0                      py_1  
> keyring                   18.0.0                   py37_0  
> kiwisolver                1.1.0            py37he6710b0_0  
> krb5                      1.16.1               h173b8e3_7  
> lazy-object-proxy         1.4.2            py37h7b6447c_0  
> ld_impl_linux-64          2.33.1               h53a641e_7  
> libarchive                3.3.3                h5d8350f_5  
> libcurl                   7.65.3               h20c2e04_0  
> libedit                   3.1.20181209         hc058e9b_0  
> libevent                  2.1.8                h1ba5d50_0  
> libffi                    3.2.1                hd88cf55_4  
> libgcc-ng                 9.1.0                hdf63c60_0  
> libgfortran-ng            7.3.0                hdf63c60_0  
> libgpuarray               0.7.6                h14c3975_0  
> liblief                   0.9.0                h7725739_2  
> libnetcdf                 4.6.1                h11d0813_2  
> libpng                    1.6.37               hbc83047_0  
> libprotobuf               3.11.2               hd408876_0  
> libsodium                 1.0.16               h1bed415_0  
> libssh2                   1.8.2                h1ba5d50_0  
> libstdcxx-ng              9.1.0                hdf63c60_0  
> libtiff                   4.0.10               h2733197_2  
> libtool                   2.4.6                h7b6447c_5  
> libuuid                   1.0.3                h1bed415_2  
> libxcb                    1.13                 h1bed415_1  
> libxml2                   2.9.9                hea5a465_1  
> libxslt                   1.1.33               h7d1a2b0_0  
> llvmlite                  0.29.0           py37hd408876_0  
> locket                    0.2.0                    py37_1  
> lxml                      4.4.1            py37hefd8a0e_0  
> lz4-c                     1.8.1.2              h14c3975_0  
> lzo                       2.10                 h49e0be7_2  
> mako                      1.1.0                      py_0  
> markdown                  3.1.1                    py37_0  
> markupsafe                1.1.1            py37h7b6447c_0  
> matplotlib                3.1.1            py37h5429711_0  
> mccabe                    0.6.1                    py37_1  
> mistune                   0.8.4            py37h7b6447c_0  
> mkl                       2019.4                      243  
> mkl-service               2.3.0            py37he904b0f_0  
> mkl_fft                   1.0.14           py37ha843d7b_0  
> mkl_random                1.1.0            py37hd6b4f25_0  
> mock                      3.0.5                    py37_0  
> more-itertools            7.2.0                    py37_0  
> mpc                       1.1.0                h10f8cd9_1  
> mpfr                      4.0.1                hdf1c602_3  
> mpmath                    1.1.0                    py37_0  
> msgpack-python            0.6.1            py37hfd86e86_1  
> multipledispatch          0.6.0                    py37_0  
> navigator-updater         0.2.1                    py37_0  
> nbconvert                 5.6.0                    py37_1  
> nbformat                  4.4.0                    py37_0  
> ncurses                   6.1                  he6710b0_1  
> netcdf4                   1.4.2            py37h808af73_0  
> networkx                  2.3                        py_0  
> nltk                      3.4.5                    py37_0  
> nose                      1.3.7                    py37_2  
> notebook                  6.0.1                    py37_0  
> numba                     0.45.1           py37h962f231_0  
> numexpr                   2.7.0            py37h9e4a6bb_0  
> numpy                     1.17.2           py37haad9e8e_0  
> numpy-base                1.17.2           py37hde5b4d6_0  
> numpydoc                  0.9.1                      py_0  
> olefile                   0.46                     py37_0  
> openpyxl                  3.0.0                      py_0  
> openssl                   1.1.1d               h7b6447c_2  
> opt_einsum                3.1.0                      py_0  
> packaging                 19.2                       py_0  
> pandas                    0.25.1           py37he6710b0_0  
> pandoc                    2.2.3.2                       0  
> pandocfilters             1.4.2                    py37_1  
> pango                     1.42.4               h049681c_0  
> parquet-cpp               1.5.1                         3    conda-forge
> parso                     0.5.1                      py_0  
> partd                     1.0.0                      py_0  
> patchelf                  0.9                  he6710b0_3  
> path.py                   12.0.1                     py_0  
> pathlib2                  2.3.5                    py37_0  
> patsy                     0.5.1                    py37_0  
> pcre                      8.43                 he6710b0_0  
> pep8                      1.7.1                    py37_0  
> perl                      5.26.2               h14c3975_0  
> pexpect                   4.7.0                    py37_0  
> pickleshare               0.7.5                    py37_0  
> pillow                    6.2.0            py37h34e0f95_0  
> pip                       19.2.3                   py37_0  
> pixman                    0.38.0               h7b6447c_0  
> pkginfo                   1.5.0.1                  py37_0  
> pluggy                    0.13.0                   py37_0  
> ply                       3.11                     py37_0  
> progressbar2              3.37.1                   py37_0  
> prometheus_client         0.7.1                      py_0  
> prompt_toolkit            2.0.10                     py_0  
> protobuf                  3.11.2           py37he6710b0_0  
> psutil                    5.6.3            py37h7b6447c_0  
> ptyprocess                0.6.0                    py37_0  
> py                        1.8.0                    py37_0  
> py-lief                   0.9.0            py37h7725739_2  
> pyarrow                   0.11.1          py37hbbcf98d_1002    conda-forge
> pycodestyle               2.5.0                    py37_0  
> pycosat                   0.6.3            py37h14c3975_0  
> pycparser                 2.19                     py37_0  
> pycrypto                  2.6.1            py37h14c3975_9  
> pycurl                    7.43.0.3         py37h1ba5d50_0  
> pyflakes                  2.1.1                    py37_0  
> pygments                  2.4.2                      py_0  
> pygpu                     0.7.6            py37h035aef0_0  
> pylint                    2.4.2                    py37_0  
> pyodbc                    4.0.27           py37he6710b0_0  
> pyopenssl                 19.0.0                   py37_0  
> pyparsing                 2.4.2                      py_0  
> pyqt                      5.9.2            py37h05f1152_2  
> pyrsistent                0.15.4           py37h7b6447c_0  
> pysocks                   1.7.1                    py37_0  
> pytables                  3.5.2            py37h71ec239_1  
> pytest                    5.2.1                    py37_0  
> pytest-arraydiff          0.3              py37h39e3cac_0  
> pytest-astropy            0.5.0                    py37_0  
> pytest-doctestplus        0.4.0                      py_0  
> pytest-openfiles          0.4.0                      py_0  
> pytest-remotedata         0.3.2                    py37_0  
> pytest-runner             5.2                        py_0  
> python                    3.7.4                h265db76_1  
> python-dateutil           2.8.0                    py37_0  
> python-libarchive-c       2.8                     py37_13  
> python-utils              2.3.0                    py37_0  
> pythreejs                 2.1.1                      py_0    conda-forge
> pytz                      2019.3                     py_0  
> pywavelets                1.0.3            py37hdd07704_1  
> pyyaml                    5.1.2            py37h7b6447c_0  
> pyzmq                     18.1.0           py37he6710b0_0  
> qt                        5.9.7                h5867ecd_1  
> qtawesome                 0.6.0                      py_0  
> qtconsole                 4.5.5                      py_0  
> qtpy                      1.9.0                      py_0  
> readline                  7.0                  h7b6447c_5  
> requests                  2.22.0                   py37_0  
> ripgrep                   0.10.0               hc07d326_0  
> rope                      0.14.0                     py_0  
> ruamel_yaml               0.15.46          py37h14c3975_0  
> s3fs                      0.2.0                    py37_0  
> s3transfer                0.2.1                    py37_0  
> scikit-image              0.15.0           py37he6710b0_0  
> scikit-learn              0.21.3           py37hd81dba3_0  
> scipy                     1.3.1            py37h7c811a0_0  
> seaborn                   0.9.0                    py37_0  
> secretstorage             3.1.1                    py37_0  
> send2trash                1.5.0                    py37_0  
> setuptools                41.4.0                   py37_0  
> simplegeneric             0.8.1                    py37_2  
> singledispatch            3.4.0.3                  py37_0  
> sip                       4.19.8           py37hf484d3e_0  
> six                       1.12.0                   py37_0  
> snappy                    1.1.7                hbae5bb6_3  
> snowballstemmer           2.0.0                      py_0  
> sortedcollections         1.1.2                    py37_0  
> sortedcontainers          2.1.0                    py37_0  
> soupsieve                 1.9.3                    py37_0  
> sphinx                    2.2.0                      py_0  
> sphinxcontrib             1.0                      py37_1  
> sphinxcontrib-applehelp   1.0.1                      py_0  
> sphinxcontrib-devhelp     1.0.1                      py_0  
> sphinxcontrib-htmlhelp    1.0.2                      py_0  
> sphinxcontrib-jsmath      1.0.1                      py_0  
> sphinxcontrib-qthelp      1.0.2                      py_0  
> sphinxcontrib-serializinghtml 1.1.3                      py_0  
> sphinxcontrib-websupport  1.1.2                      py_0  
> spyder                    3.3.6                    py37_0  
> spyder-kernels            0.5.2                    py37_0  
> sqlalchemy                1.3.9            py37h7b6447c_0  
> sqlite                    3.30.0               h7b6447c_0  
> statsmodels               0.10.1           py37hdd07704_0  
> sympy                     1.4                      py37_0  
> tabulate                  0.8.3                    py37_0  
> tbb                       2019.4               hfd86e86_0  
> tblib                     1.4.0                      py_0  
> tensorboard               2.0.0              pyhb38c66f_1  
> tensorflow                2.0.0           mkl_py37h66b46cc_0  
> tensorflow-base           2.0.0           mkl_py37h9204916_0  
> tensorflow-estimator      2.0.0              pyh2649769_0  
> termcolor                 1.1.0                    py37_1  
> terminado                 0.8.2                    py37_0  
> testpath                  0.4.2                    py37_0  
> theano                    1.0.4            py37hfd86e86_0  
> thrift-cpp                0.11.0               h02b749d_3  
> tk                        8.6.8                hbc83047_0  
> toolz                     0.10.0                     py_0  
> tornado                   6.0.3            py37h7b6447c_0  
> tqdm                      4.36.1                     py_0  
> traitlets                 4.3.3                    py37_0  
> traittypes                0.2.1                      py_1    conda-forge
> unicodecsv                0.14.1                   py37_0  
> unixodbc                  2.3.7                h14c3975_0  
> urllib3                   1.24.2                   py37_0  
> vaex                      2.5.0                      py_0    conda-forge
> vaex-arrow                0.4.2                      py_0    conda-forge
> vaex-astro                0.6.1                      py_1    conda-forge
> vaex-core                 1.4.0            py37hb3f55d8_0    conda-forge
> vaex-hdf5                 0.5.6                      py_0    conda-forge
> vaex-jupyter              0.4.1                      py_0    conda-forge
> vaex-ml                   0.7.0                      py_0    conda-forge
> vaex-server               0.2.1                      py_0    conda-forge
> vaex-viz                  0.3.8                      py_0    conda-forge
> wcwidth                   0.1.7                    py37_0  
> webencodings              0.5.1                    py37_1  
> werkzeug                  0.16.0                     py_0  
> wheel                     0.33.6                   py37_0  
> widgetsnbextension        3.5.1                    py37_0  
> wrapt                     1.11.2           py37h7b6447c_0  
> wurlitzer                 1.0.3                    py37_0  
> xarray                    0.14.1                     py_1  
> xlrd                      1.2.0                    py37_0  
> xlsxwriter                1.2.1                      py_0  
> xlwt                      1.3.0                    py37_0  
> xz                        5.2.4                h14c3975_4  
> yaml                      0.1.7                had09818_2  
> zeromq                    4.3.1                he6710b0_3  
> zict                      1.0.0                      py_0  
> zipp                      0.6.0                      py_0  
> zlib                      1.2.11               h7b6447c_3  
> zstd                      1.3.7                h0b5b093_0  
> 
>> Le 9 janv. 2020 à 15:03, Wes McKinney <wesmckinn@gmail.com <ma...@gmail.com>> a écrit :
>> 
>> hi,
>> 
>> Can you show the commands you used to install pyarrow? Please also
>> show the output of
>> 
>> conda list
>> 
>> It looks like you have conflicting library versions installed (for
>> example pyarrow or arrow-cpp from conda combined with pyarrow from
>> PyPI)
>> 
>> - Wes
>> 
>> On Thu, Jan 9, 2020 at 7:59 AM xxwang <xiaoni.wang@obspm.fr <ma...@obspm.fr>> wrote:
>>> 
>>> Dear all,
>>>    I removed my previous anaconda by rm ~/anaconda. Then I reinstalled the anaconda3 and packages (Pyarrow included). But I still got the errors:
>>> anaconda3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev
>>> 
>>> 
>>>    Thanks in advance !
>>> 
>>> Best regards
>>> 
>>> Xiaoni
>>> 
>>> Le 7 janv. 2020 à 16:04, Uwe L. Korn <uwelk@xhochy.com <ma...@xhochy.com>> a écrit :
>>> 
>>> Hello Xiaoni,
>>> 
>>> it seems that you have a conda environment and also installed pyarrow with conda before. Mixing pip and conda installs of pyarrow is not going to work. Please recreate your conda environment and install pyarrow from conda forge using "conda config --add channels conda-forge && conda install pyarrow".
>>> 
>>> Cheers
>>> Uwe
>>> 
>>> On Tue, Jan 7, 2020, at 3:15 PM, xxwang wrote:
>>> 
>>> Dear all,
>>>     I tried to installed Pyarrow (within python 3.7), by using pip install pyarrow. The installation seems OK. But when I do «  import pyarrow», then there is an error as below. I do not understand why ….. If you could give some help, I will greatly appreciate !
>>> 
>>> Best regards
>>> Xiaoni
>>> 
>>> .conda/envs/python3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev
>>> 
>>> 
> 


Re: Pyarrow installation

Posted by xxwang <xi...@obspm.fr>.
Hi Wes
     Thanks. There seems to be a version conflict problem. I have the condo-forge in my channel list. I had installed Pyarrow by 'conda install pyarrow’.
What I did just now:
1) I removed Pyarrow by : conda uninstall pyarrow
2) Then I tried to reinstall Pyarrow by: conda install pyarrow
The conda suggested to install Pyarrow-0.11.1. So I installed it. Then I got the same error of 'undefined symbol'.

Thanks in advance,

Xiaoni


conda list give:
# packages in environment at /obs/xxwang/anaconda3:
#
# Name                    Version                   Build  Channel
_ipyw_jlab_nb_ext_conf    0.1.0                    py37_0  
_libgcc_mutex             0.1                        main  
_tflow_select             2.3.0                       mkl  
absl-py                   0.8.1                    py37_0  
alabaster                 0.7.12                   py37_0  
anaconda                  2019.10                  py37_0  
anaconda-client           1.7.2                    py37_0  
anaconda-navigator        1.9.7                    py37_0  
anaconda-project          0.8.3                      py_0  
aplus                     0.11.0                     py_1    conda-forge
arrow-cpp                 0.11.1           py37h3bd774a_1    conda-forge
asn1crypto                1.0.1                    py37_0  
astor                     0.8.0                    py37_0  
astroid                   2.3.1                    py37_0  
astropy                   3.2.2            py37h7b6447c_0  
atomicwrites              1.3.0                    py37_1  
attrs                     19.2.0                     py_0  
babel                     2.7.0                      py_0  
backcall                  0.1.0                    py37_0  
backports                 1.0                        py_2  
backports.functools_lru_cache 1.6.1                      py_0  
backports.os              0.1.1                    py37_0  
backports.shutil_get_terminal_size 1.0.0                    py37_2  
backports.tempfile        1.0                        py_1  
backports.weakref         1.0.post1                  py_1  
beautifulsoup4            4.8.0                    py37_0  
binutils_impl_linux-64    2.33.1               he6710b0_7  
binutils_linux-64         2.33.1              h9595d00_15  
bitarray                  1.0.1            py37h7b6447c_0  
bkcharts                  0.2                      py37_0  
blas                      1.0                         mkl  
bleach                    3.1.0                    py37_0  
blosc                     1.16.3               hd408876_0  
bokeh                     1.3.4                    py37_0  
boost-cpp                 1.68.0            h11c811c_1000    conda-forge
boto                      2.49.0                   py37_0  
boto3                     1.10.39                    py_0  
botocore                  1.13.39                    py_0  
bottleneck                1.2.1            py37h035aef0_1  
bqplot                    0.12.2                     py_0    conda-forge
branca                    0.3.1                      py_0    conda-forge
bzip2                     1.0.8                h7b6447c_0  
c-ares                    1.15.0            h7b6447c_1001  
ca-certificates           2019.8.28                     0  
cachetools                3.1.1                      py_0    conda-forge
cairo                     1.14.12              h8948797_3  
certifi                   2019.9.11                py37_0  
cffi                      1.12.3           py37h2e261b9_0  
cftime                    1.0.4.2          py37hdd07704_0  
chardet                   3.0.4                 py37_1003  
click                     7.0                      py37_0  
cloudpickle               1.2.2                      py_0  
clyent                    1.2.2                    py37_1  
colorama                  0.4.1                    py37_0  
conda                     4.7.12                   py37_0  
conda-build               3.18.9                   py37_3  
conda-env                 2.6.0                         1  
conda-package-handling    1.6.0            py37h7b6447c_0  
conda-verify              3.4.2                      py_1  
contextlib2               0.6.0                      py_0  
cryptography              2.7              py37h1ba5d50_0  
curl                      7.65.3               hbc83047_0  
cycler                    0.10.0                   py37_0  
cython                    0.29.13          py37he6710b0_0  
cytoolz                   0.10.0           py37h7b6447c_0  
dask                      2.5.2                      py_0  
dask-core                 2.5.2                      py_0  
dbus                      1.13.6               h746ee38_0  
decorator                 4.4.0                    py37_1  
defusedxml                0.6.0                      py_0  
distributed               2.5.2                      py_0  
docutils                  0.15.2                   py37_0  
entrypoints               0.3                      py37_0  
et_xmlfile                1.0.1                    py37_0  
expat                     2.2.6                he6710b0_0  
fastcache                 1.1.0            py37h7b6447c_0  
filelock                  3.0.12                     py_0  
flask                     1.1.1                      py_0  
fontconfig                2.13.0               h9420a91_0  
freetype                  2.9.1                h8a8886c_1  
fribidi                   1.0.5                h7b6447c_0  
fsspec                    0.5.2                      py_0  
future                    0.18.2                   py37_0  
gast                      0.2.2                    py37_0  
gcc_impl_linux-64         7.3.0                habb00fd_1  
gcc_linux-64              7.3.0               h553295d_15  
get_terminal_size         1.0.0                haa9412d_0  
gevent                    1.4.0            py37h7b6447c_0  
git                       2.23.0          pl526hacde149_0  
glib                      2.56.2               hd408876_0  
glob2                     0.7                        py_0  
gmp                       6.1.2                h6c8ec71_1  
gmpy2                     2.0.8            py37h10f8cd9_2  
google-pasta              0.1.8                      py_0  
graphite2                 1.3.13               h23475e2_0  
greenlet                  0.4.15           py37h7b6447c_0  
grpcio                    1.16.1           py37hf8bcb03_1  
gst-plugins-base          1.14.0               hbbd80ab_1  
gstreamer                 1.14.0               hb453b48_1  
gxx_impl_linux-64         7.3.0                hdf63c60_1  
gxx_linux-64              7.3.0               h553295d_15  
h5py                      2.9.0            py37h7918eee_0  
harfbuzz                  1.8.8                hffaf4a1_0  
hdf4                      4.2.13               h3ca952b_2  
hdf5                      1.10.4               hb1b8bf9_0  
heapdict                  1.0.1                      py_0  
html5lib                  1.0.1                    py37_0  
icu                       58.2                 h9c2bf20_1  
idna                      2.8                      py37_0  
imageio                   2.6.0                    py37_0  
imagesize                 1.1.0                    py37_0  
importlib_metadata        0.23                     py37_0  
intel-openmp              2019.4                      243  
ipydatawidgets            4.0.1                      py_0    conda-forge
ipykernel                 5.1.2            py37h39e3cac_0  
ipyleaflet                0.11.6                   py37_0    conda-forge
ipympl                    0.3.3                      py_0  
ipyscales                 0.3.0                      py_0    conda-forge
ipython                   7.8.0            py37h39e3cac_0  
ipython_genutils          0.2.0                    py37_0  
ipyvolume                 0.5.2                    py37_0    conda-forge
ipyvue                    1.0.2                      py_0    conda-forge
ipyvuetify                1.1.1                      py_0    conda-forge
ipywebrtc                 0.5.0                    py37_0    conda-forge
ipywidgets                7.5.1                      py_0  
isort                     4.3.21                   py37_0  
itsdangerous              1.1.0                    py37_0  
jbig                      2.1                  hdba287a_0  
jdcal                     1.4.1                      py_0  
jedi                      0.15.1                   py37_0  
jeepney                   0.4.1                      py_0  
jinja2                    2.10.3                     py_0  
jmespath                  0.9.4                      py_0  
joblib                    0.13.2                   py37_0  
jpeg                      9b                   h024ee3a_2  
json5                     0.8.5                      py_0  
jsonschema                3.0.2                    py37_0  
jupyter                   1.0.0                    py37_7  
jupyter_client            5.3.3                    py37_1  
jupyter_console           6.0.0                    py37_0  
jupyter_core              4.5.0                      py_0  
jupyterlab                1.1.4              pyhf63ae98_0  
jupyterlab_server         1.0.6                      py_0  
keras                     2.3.1                    py37_0    conda-forge
keras-applications        1.0.8                      py_0  
keras-preprocessing       1.1.0                      py_1  
keyring                   18.0.0                   py37_0  
kiwisolver                1.1.0            py37he6710b0_0  
krb5                      1.16.1               h173b8e3_7  
lazy-object-proxy         1.4.2            py37h7b6447c_0  
ld_impl_linux-64          2.33.1               h53a641e_7  
libarchive                3.3.3                h5d8350f_5  
libcurl                   7.65.3               h20c2e04_0  
libedit                   3.1.20181209         hc058e9b_0  
libevent                  2.1.8                h1ba5d50_0  
libffi                    3.2.1                hd88cf55_4  
libgcc-ng                 9.1.0                hdf63c60_0  
libgfortran-ng            7.3.0                hdf63c60_0  
libgpuarray               0.7.6                h14c3975_0  
liblief                   0.9.0                h7725739_2  
libnetcdf                 4.6.1                h11d0813_2  
libpng                    1.6.37               hbc83047_0  
libprotobuf               3.11.2               hd408876_0  
libsodium                 1.0.16               h1bed415_0  
libssh2                   1.8.2                h1ba5d50_0  
libstdcxx-ng              9.1.0                hdf63c60_0  
libtiff                   4.0.10               h2733197_2  
libtool                   2.4.6                h7b6447c_5  
libuuid                   1.0.3                h1bed415_2  
libxcb                    1.13                 h1bed415_1  
libxml2                   2.9.9                hea5a465_1  
libxslt                   1.1.33               h7d1a2b0_0  
llvmlite                  0.29.0           py37hd408876_0  
locket                    0.2.0                    py37_1  
lxml                      4.4.1            py37hefd8a0e_0  
lz4-c                     1.8.1.2              h14c3975_0  
lzo                       2.10                 h49e0be7_2  
mako                      1.1.0                      py_0  
markdown                  3.1.1                    py37_0  
markupsafe                1.1.1            py37h7b6447c_0  
matplotlib                3.1.1            py37h5429711_0  
mccabe                    0.6.1                    py37_1  
mistune                   0.8.4            py37h7b6447c_0  
mkl                       2019.4                      243  
mkl-service               2.3.0            py37he904b0f_0  
mkl_fft                   1.0.14           py37ha843d7b_0  
mkl_random                1.1.0            py37hd6b4f25_0  
mock                      3.0.5                    py37_0  
more-itertools            7.2.0                    py37_0  
mpc                       1.1.0                h10f8cd9_1  
mpfr                      4.0.1                hdf1c602_3  
mpmath                    1.1.0                    py37_0  
msgpack-python            0.6.1            py37hfd86e86_1  
multipledispatch          0.6.0                    py37_0  
navigator-updater         0.2.1                    py37_0  
nbconvert                 5.6.0                    py37_1  
nbformat                  4.4.0                    py37_0  
ncurses                   6.1                  he6710b0_1  
netcdf4                   1.4.2            py37h808af73_0  
networkx                  2.3                        py_0  
nltk                      3.4.5                    py37_0  
nose                      1.3.7                    py37_2  
notebook                  6.0.1                    py37_0  
numba                     0.45.1           py37h962f231_0  
numexpr                   2.7.0            py37h9e4a6bb_0  
numpy                     1.17.2           py37haad9e8e_0  
numpy-base                1.17.2           py37hde5b4d6_0  
numpydoc                  0.9.1                      py_0  
olefile                   0.46                     py37_0  
openpyxl                  3.0.0                      py_0  
openssl                   1.1.1d               h7b6447c_2  
opt_einsum                3.1.0                      py_0  
packaging                 19.2                       py_0  
pandas                    0.25.1           py37he6710b0_0  
pandoc                    2.2.3.2                       0  
pandocfilters             1.4.2                    py37_1  
pango                     1.42.4               h049681c_0  
parquet-cpp               1.5.1                         3    conda-forge
parso                     0.5.1                      py_0  
partd                     1.0.0                      py_0  
patchelf                  0.9                  he6710b0_3  
path.py                   12.0.1                     py_0  
pathlib2                  2.3.5                    py37_0  
patsy                     0.5.1                    py37_0  
pcre                      8.43                 he6710b0_0  
pep8                      1.7.1                    py37_0  
perl                      5.26.2               h14c3975_0  
pexpect                   4.7.0                    py37_0  
pickleshare               0.7.5                    py37_0  
pillow                    6.2.0            py37h34e0f95_0  
pip                       19.2.3                   py37_0  
pixman                    0.38.0               h7b6447c_0  
pkginfo                   1.5.0.1                  py37_0  
pluggy                    0.13.0                   py37_0  
ply                       3.11                     py37_0  
progressbar2              3.37.1                   py37_0  
prometheus_client         0.7.1                      py_0  
prompt_toolkit            2.0.10                     py_0  
protobuf                  3.11.2           py37he6710b0_0  
psutil                    5.6.3            py37h7b6447c_0  
ptyprocess                0.6.0                    py37_0  
py                        1.8.0                    py37_0  
py-lief                   0.9.0            py37h7725739_2  
pyarrow                   0.11.1          py37hbbcf98d_1002    conda-forge
pycodestyle               2.5.0                    py37_0  
pycosat                   0.6.3            py37h14c3975_0  
pycparser                 2.19                     py37_0  
pycrypto                  2.6.1            py37h14c3975_9  
pycurl                    7.43.0.3         py37h1ba5d50_0  
pyflakes                  2.1.1                    py37_0  
pygments                  2.4.2                      py_0  
pygpu                     0.7.6            py37h035aef0_0  
pylint                    2.4.2                    py37_0  
pyodbc                    4.0.27           py37he6710b0_0  
pyopenssl                 19.0.0                   py37_0  
pyparsing                 2.4.2                      py_0  
pyqt                      5.9.2            py37h05f1152_2  
pyrsistent                0.15.4           py37h7b6447c_0  
pysocks                   1.7.1                    py37_0  
pytables                  3.5.2            py37h71ec239_1  
pytest                    5.2.1                    py37_0  
pytest-arraydiff          0.3              py37h39e3cac_0  
pytest-astropy            0.5.0                    py37_0  
pytest-doctestplus        0.4.0                      py_0  
pytest-openfiles          0.4.0                      py_0  
pytest-remotedata         0.3.2                    py37_0  
pytest-runner             5.2                        py_0  
python                    3.7.4                h265db76_1  
python-dateutil           2.8.0                    py37_0  
python-libarchive-c       2.8                     py37_13  
python-utils              2.3.0                    py37_0  
pythreejs                 2.1.1                      py_0    conda-forge
pytz                      2019.3                     py_0  
pywavelets                1.0.3            py37hdd07704_1  
pyyaml                    5.1.2            py37h7b6447c_0  
pyzmq                     18.1.0           py37he6710b0_0  
qt                        5.9.7                h5867ecd_1  
qtawesome                 0.6.0                      py_0  
qtconsole                 4.5.5                      py_0  
qtpy                      1.9.0                      py_0  
readline                  7.0                  h7b6447c_5  
requests                  2.22.0                   py37_0  
ripgrep                   0.10.0               hc07d326_0  
rope                      0.14.0                     py_0  
ruamel_yaml               0.15.46          py37h14c3975_0  
s3fs                      0.2.0                    py37_0  
s3transfer                0.2.1                    py37_0  
scikit-image              0.15.0           py37he6710b0_0  
scikit-learn              0.21.3           py37hd81dba3_0  
scipy                     1.3.1            py37h7c811a0_0  
seaborn                   0.9.0                    py37_0  
secretstorage             3.1.1                    py37_0  
send2trash                1.5.0                    py37_0  
setuptools                41.4.0                   py37_0  
simplegeneric             0.8.1                    py37_2  
singledispatch            3.4.0.3                  py37_0  
sip                       4.19.8           py37hf484d3e_0  
six                       1.12.0                   py37_0  
snappy                    1.1.7                hbae5bb6_3  
snowballstemmer           2.0.0                      py_0  
sortedcollections         1.1.2                    py37_0  
sortedcontainers          2.1.0                    py37_0  
soupsieve                 1.9.3                    py37_0  
sphinx                    2.2.0                      py_0  
sphinxcontrib             1.0                      py37_1  
sphinxcontrib-applehelp   1.0.1                      py_0  
sphinxcontrib-devhelp     1.0.1                      py_0  
sphinxcontrib-htmlhelp    1.0.2                      py_0  
sphinxcontrib-jsmath      1.0.1                      py_0  
sphinxcontrib-qthelp      1.0.2                      py_0  
sphinxcontrib-serializinghtml 1.1.3                      py_0  
sphinxcontrib-websupport  1.1.2                      py_0  
spyder                    3.3.6                    py37_0  
spyder-kernels            0.5.2                    py37_0  
sqlalchemy                1.3.9            py37h7b6447c_0  
sqlite                    3.30.0               h7b6447c_0  
statsmodels               0.10.1           py37hdd07704_0  
sympy                     1.4                      py37_0  
tabulate                  0.8.3                    py37_0  
tbb                       2019.4               hfd86e86_0  
tblib                     1.4.0                      py_0  
tensorboard               2.0.0              pyhb38c66f_1  
tensorflow                2.0.0           mkl_py37h66b46cc_0  
tensorflow-base           2.0.0           mkl_py37h9204916_0  
tensorflow-estimator      2.0.0              pyh2649769_0  
termcolor                 1.1.0                    py37_1  
terminado                 0.8.2                    py37_0  
testpath                  0.4.2                    py37_0  
theano                    1.0.4            py37hfd86e86_0  
thrift-cpp                0.11.0               h02b749d_3  
tk                        8.6.8                hbc83047_0  
toolz                     0.10.0                     py_0  
tornado                   6.0.3            py37h7b6447c_0  
tqdm                      4.36.1                     py_0  
traitlets                 4.3.3                    py37_0  
traittypes                0.2.1                      py_1    conda-forge
unicodecsv                0.14.1                   py37_0  
unixodbc                  2.3.7                h14c3975_0  
urllib3                   1.24.2                   py37_0  
vaex                      2.5.0                      py_0    conda-forge
vaex-arrow                0.4.2                      py_0    conda-forge
vaex-astro                0.6.1                      py_1    conda-forge
vaex-core                 1.4.0            py37hb3f55d8_0    conda-forge
vaex-hdf5                 0.5.6                      py_0    conda-forge
vaex-jupyter              0.4.1                      py_0    conda-forge
vaex-ml                   0.7.0                      py_0    conda-forge
vaex-server               0.2.1                      py_0    conda-forge
vaex-viz                  0.3.8                      py_0    conda-forge
wcwidth                   0.1.7                    py37_0  
webencodings              0.5.1                    py37_1  
werkzeug                  0.16.0                     py_0  
wheel                     0.33.6                   py37_0  
widgetsnbextension        3.5.1                    py37_0  
wrapt                     1.11.2           py37h7b6447c_0  
wurlitzer                 1.0.3                    py37_0  
xarray                    0.14.1                     py_1  
xlrd                      1.2.0                    py37_0  
xlsxwriter                1.2.1                      py_0  
xlwt                      1.3.0                    py37_0  
xz                        5.2.4                h14c3975_4  
yaml                      0.1.7                had09818_2  
zeromq                    4.3.1                he6710b0_3  
zict                      1.0.0                      py_0  
zipp                      0.6.0                      py_0  
zlib                      1.2.11               h7b6447c_3  
zstd                      1.3.7                h0b5b093_0  

> Le 9 janv. 2020 à 15:03, Wes McKinney <we...@gmail.com> a écrit :
> 
> hi,
> 
> Can you show the commands you used to install pyarrow? Please also
> show the output of
> 
> conda list
> 
> It looks like you have conflicting library versions installed (for
> example pyarrow or arrow-cpp from conda combined with pyarrow from
> PyPI)
> 
> - Wes
> 
> On Thu, Jan 9, 2020 at 7:59 AM xxwang <xi...@obspm.fr> wrote:
>> 
>> Dear all,
>>    I removed my previous anaconda by rm ~/anaconda. Then I reinstalled the anaconda3 and packages (Pyarrow included). But I still got the errors:
>> anaconda3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev
>> 
>> 
>>    Thanks in advance !
>> 
>> Best regards
>> 
>> Xiaoni
>> 
>> Le 7 janv. 2020 à 16:04, Uwe L. Korn <uw...@xhochy.com> a écrit :
>> 
>> Hello Xiaoni,
>> 
>> it seems that you have a conda environment and also installed pyarrow with conda before. Mixing pip and conda installs of pyarrow is not going to work. Please recreate your conda environment and install pyarrow from conda forge using "conda config --add channels conda-forge && conda install pyarrow".
>> 
>> Cheers
>> Uwe
>> 
>> On Tue, Jan 7, 2020, at 3:15 PM, xxwang wrote:
>> 
>> Dear all,
>>     I tried to installed Pyarrow (within python 3.7), by using pip install pyarrow. The installation seems OK. But when I do «  import pyarrow», then there is an error as below. I do not understand why ….. If you could give some help, I will greatly appreciate !
>> 
>> Best regards
>> Xiaoni
>> 
>> .conda/envs/python3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev
>> 
>> 


Re: Pyarrow installation

Posted by Wes McKinney <we...@gmail.com>.
hi,

Can you show the commands you used to install pyarrow? Please also
show the output of

conda list

It looks like you have conflicting library versions installed (for
example pyarrow or arrow-cpp from conda combined with pyarrow from
PyPI)

- Wes

On Thu, Jan 9, 2020 at 7:59 AM xxwang <xi...@obspm.fr> wrote:
>
> Dear all,
>     I removed my previous anaconda by rm ~/anaconda. Then I reinstalled the anaconda3 and packages (Pyarrow included). But I still got the errors:
> anaconda3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev
>
>
>     Thanks in advance !
>
> Best regards
>
> Xiaoni
>
> Le 7 janv. 2020 à 16:04, Uwe L. Korn <uw...@xhochy.com> a écrit :
>
> Hello Xiaoni,
>
> it seems that you have a conda environment and also installed pyarrow with conda before. Mixing pip and conda installs of pyarrow is not going to work. Please recreate your conda environment and install pyarrow from conda forge using "conda config --add channels conda-forge && conda install pyarrow".
>
> Cheers
> Uwe
>
> On Tue, Jan 7, 2020, at 3:15 PM, xxwang wrote:
>
> Dear all,
>      I tried to installed Pyarrow (within python 3.7), by using pip install pyarrow. The installation seems OK. But when I do «  import pyarrow», then there is an error as below. I do not understand why ….. If you could give some help, I will greatly appreciate !
>
> Best regards
> Xiaoni
>
> .conda/envs/python3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev
>
>

Re: Pyarrow installation

Posted by xxwang <xi...@obspm.fr>.
Dear all,
    I removed my previous anaconda by rm ~/anaconda. Then I reinstalled the anaconda3 and packages (Pyarrow included). But I still got the errors:
anaconda3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev

    
    Thanks in advance !

Best regards

Xiaoni

> Le 7 janv. 2020 à 16:04, Uwe L. Korn <uw...@xhochy.com> a écrit :
> 
> Hello Xiaoni,
> 
> it seems that you have a conda environment and also installed pyarrow with conda before. Mixing pip and conda installs of pyarrow is not going to work. Please recreate your conda environment and install pyarrow from conda forge using "conda config --add channels conda-forge && conda install pyarrow".
> 
> Cheers
> Uwe
> 
> On Tue, Jan 7, 2020, at 3:15 PM, xxwang wrote:
>> Dear all,
>>      I tried to installed Pyarrow (within python 3.7), by using pip install pyarrow. The installation seems OK. But when I do «  import pyarrow», then there is an error as below. I do not understand why ….. If you could give some help, I will greatly appreciate !
>> 
>> Best regards
>> Xiaoni
>> 
>> .conda/envs/python3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev


Re: Pyarrow installation

Posted by "Uwe L. Korn" <uw...@xhochy.com>.
Hello Xiaoni,

it seems that you have a conda environment and also installed pyarrow with conda before. Mixing pip and conda installs of pyarrow is not going to work. Please recreate your conda environment and install pyarrow from conda forge using "conda config --add channels conda-forge && conda install pyarrow".

Cheers
Uwe

On Tue, Jan 7, 2020, at 3:15 PM, xxwang wrote:
> Dear all,
>  I tried to installed Pyarrow (within python 3.7), by using pip install pyarrow. The installation seems OK. But when I do « import pyarrow», then there is an error as below. I do not understand why ….. If you could give some help, I will greatly appreciate !
> 
> Best regards
> Xiaoni
> 
> .conda/envs/python3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev

Re: Pyarrow installation

Posted by Raúl Bocanegra Algarra <ra...@shapelets.io>.
Not an expert, but seems like a mismatch in ABI version in the library you are loading as shown here: http://mail-archives.apache.org/mod_mbox/arrow-dev/201808.mbox/%3cCAJPUwMA2rF4ZqbLnRD0-bmfGf6ybj8n3Xi=HNKfEXs3DVc5PMw@mail.gmail.com%3e.
You can "lsof -p <your program pid>" and see what library your program is loading and check if that's what you expected.

Hope that helps.


Raúl Bocanegra Algarra

Software Engineer

M: + 34 617 83 64 45 -  E: raul.bocanegra@shapelets.io<ma...@shapelets.io>

________________________________
From: xxwang <xi...@obspm.fr>
Sent: Tuesday, January 7, 2020 3:15 PM
To: user@arrow.apache.org <us...@arrow.apache.org>
Subject: Pyarrow installation

Dear all,
     I tried to installed Pyarrow (within python 3.7), by using pip install pyarrow. The installation seems OK. But when I do «  import pyarrow», then there is an error as below. I do not understand why ….. If you could give some help, I will greatly appreciate !

Best regards
Xiaoni

.conda/envs/python3/lib/python3.7/site-packages/pyarrow/lib.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow6Status8ToStringB5cxx11Ev