[jira] [Created] (ARROW-11720) [Python] Cannot install pyarrow via pip on Ubuntu 18.04.5

["Sachit Vithaldas (Jira)" <ji...@apache.org>]

Sachit Vithaldas created ARROW-11720:
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             Summary: [Python] Cannot install pyarrow via pip on Ubuntu 18.04.5
                 Key: ARROW-11720
                 URL: https://issues.apache.org/jira/browse/ARROW-11720
             Project: Apache Arrow
          Issue Type: Bug
          Components: Python
    Affects Versions: 3.0.0
         Environment: Ubuntu 18.04.5 LTS
            Reporter: Sachit Vithaldas


I was attempting to install pyarrow via pip on Ubuntu 18.04 by using the following command:
{code:java}
pip3 install pyarrow{code}
When doing so I get the following error:
{code:java}
Collecting pyarrow
 Downloading https://files.pythonhosted.org/packages/62/d3/a482d8a4039bf931ed6388308f0cc0541d0cab46f0bbff7c897a74f1c576/pyarrow-3.0.0.tar.gz (682kB)
 100% |################################| 686kB 2.3MB/s 
 Complete output from command python setup.py egg_info:
 Traceback (most recent call last):
 File "<string>", line 1, in <module>
 File "/tmp/pip-build-2zxk66af/pyarrow/setup.py", line 37, in <module>
 from Cython.Distutils import build_ext as _build_ext
 ModuleNotFoundError: No module named 'Cython'

 ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-2zxk66af/pyarrow/{code}

However this does seem to work without any issues on Ubuntu 20.04.1 LTS. This problem seems to be specific to 18.04.5.



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