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https://issues.apache.org/jira/browse/ARROW-11720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17287825#comment-17287825
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Sachit Vithaldas commented on ARROW-11720:
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Upgrading pip resolved the issue for me. Thanks for your help!
> [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
> Priority: Major
>
> 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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