[jira] [Updated] (ARROW-3012) [Python] Installation crashes on Python 3.7

["Wes McKinney (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-3012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney updated ARROW-3012:
--------------------------------
    Summary: [Python] Installation crashes on Python 3.7  (was: Installation crashes on Python 3.7)

> [Python] Installation crashes on Python 3.7
> -------------------------------------------
>
>                 Key: ARROW-3012
>                 URL: https://issues.apache.org/jira/browse/ARROW-3012
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Python
>    Affects Versions: 0.10.0
>         Environment: OS: MacOS High Sierra (10.13.5)
> Python: 3.7.0
> Cython: 0.28.5
>            Reporter: Diego Argueta
>            Priority: Major
>             Fix For: 0.11.0
>
>
> To reproduce, on Python 3.7.0: 
> {code:none}
> pip3.7 install pyarrow==0.10.0
> {code}
>  
> The result is a crash:
> {code:none}
> Collecting pyarrow
> Using cached https://files.pythonhosted.org/packages/c0/a0/f7e9dfd8988d94f4952f9b50eb04e14a80fbe39218520725aab53daab57c/pyarrow-0.10.0.tar.gz
> Complete output from command python setup.py egg_info:
> Traceback (most recent call last):
> File "<string>", line 1, in <module>
> File "/private/var/folders/6r/dy0_bd2x2kn735d8kymc4qt00000gn/T/pip-install-w77cbide/pyarrow/setup.py", line 545, in <module>
> url="https://arrow.apache.org/"
> File "/Users/tux/.pyenv/versions/3.7.0/lib/python3.7/site-packages/setuptools/__init__.py", line 131, in setup
> return distutils.core.setup(**attrs)
> File "/Users/tux/.pyenv/versions/3.7.0/lib/python3.7/distutils/core.py", line 108, in setup
> _setup_distribution = dist = klass(attrs)
> File "/Users/tux/.pyenv/versions/3.7.0/lib/python3.7/site-packages/setuptools/dist.py", line 370, in __init__
> k: v for k, v in attrs.items()
> File "/Users/tux/.pyenv/versions/3.7.0/lib/python3.7/distutils/dist.py", line 292, in __init__
> self.finalize_options()
> File "/Users/tux/.pyenv/versions/3.7.0/lib/python3.7/site-packages/setuptools/dist.py", line 529, in finalize_options
> ep.load()(self, ep.name, value)
> File "/private/var/folders/6r/dy0_bd2x2kn735d8kymc4qt00000gn/T/pip-install-w77cbide/pyarrow/.eggs/setuptools_scm-3.0.6-py3.7.egg/setuptools_scm/integration.py", line 23, in version_keyword
> dist.metadata.version = get_version(**value)
> File "/private/var/folders/6r/dy0_bd2x2kn735d8kymc4qt00000gn/T/pip-install-w77cbide/pyarrow/.eggs/setuptools_scm-3.0.6-py3.7.egg/setuptools_scm/__init__.py", line 135, in get_version
> parsed_version = _do_parse(config)
> File "/private/var/folders/6r/dy0_bd2x2kn735d8kymc4qt00000gn/T/pip-install-w77cbide/pyarrow/.eggs/setuptools_scm-3.0.6-py3.7.egg/setuptools_scm/__init__.py", line 77, in _do_parse
> parse_result = _call_entrypoint_fn(config, config.parse)
> File "/private/var/folders/6r/dy0_bd2x2kn735d8kymc4qt00000gn/T/pip-install-w77cbide/pyarrow/.eggs/setuptools_scm-3.0.6-py3.7.egg/setuptools_scm/__init__.py", line 40, in _call_entrypoint_fn
> return fn(config.absolute_root)
> File "/private/var/folders/6r/dy0_bd2x2kn735d8kymc4qt00000gn/T/pip-install-w77cbide/pyarrow/setup.py", line 498, in parse_version
> return version_from_scm(root)
> File "/private/var/folders/6r/dy0_bd2x2kn735d8kymc4qt00000gn/T/pip-install-w77cbide/pyarrow/.eggs/setuptools_scm-3.0.6-py3.7.egg/setuptools_scm/__init__.py", line 28, in version_from_scm
> return _version_from_entrypoint(root, "setuptools_scm.parse_scm")
> File "/private/var/folders/6r/dy0_bd2x2kn735d8kymc4qt00000gn/T/pip-install-w77cbide/pyarrow/.eggs/setuptools_scm-3.0.6-py3.7.egg/setuptools_scm/__init__.py", line 44, in _version_from_entrypoint
> for ep in iter_matching_entrypoints(config.absolute_root, entrypoint):
> AttributeError: 'str' object has no attribute 'absolute_root'
> ----------------------------------------
> Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/6r/dy0_bd2x2kn735d8kymc4qt00000gn/T/pip-install-w77cbide/pyarrow/
> {code}
>  
> I suspect this is because {{setuptools_scm}} isn't being used correctly. The function takes one argument, {{root}}, but judging from the code that uses it, it appears to expect a {{setuptools_scm.config.Configuration}} object rather than a file path.
> All the documentation says to use {{get_version()}} and the package author doesn't seem to be sure that {{version_from_scm()}} should even be a public function (see [here|https://github.com/pypa/setuptools_scm/blob/master/src/setuptools_scm/__init__.py#L27]). Perhaps going with that would be best.



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