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https://issues.apache.org/jira/browse/ARROW-11506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17280642#comment-17280642
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Weston Pace commented on ARROW-11506:
-------------------------------------
Loaded during runtime. If you are running a normal python program the library
would be loaded when you run `import pyarrow`. This will cause python to load
and interpret `pyarrow/__init__.py` which contains the line `from pyarrow.lib
import ...` which will then lead Python to load `lib.cpython...so`.
> [Python] Pyarrow fail on install and eventual run/compilation
> -------------------------------------------------------------
>
> Key: ARROW-11506
> URL: https://issues.apache.org/jira/browse/ARROW-11506
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++, Python
> Affects Versions: 3.0.0
> Reporter: Travis Smith
> Priority: Major
>
> pyarrow 3.0.0 fails on install in a clean environment created using
> virtualenv on ubuntu 18.04
> I ran the following code inside of a brand new environment:
> {code:java}
> python3 -m pip install pyarrow{code}
> This gives the following error:
> {code:java}
> ModuleNotFoundError: No module named 'Cython'{code}
> So I run
> {code:java}
> python3 -m pip install Cython
> python3 -m pip install pyarrow{code}
> which then throws another error during the pyarrow install with the following
> message a the end
> {code:java}
> Failed building wheel for pyarrow ... CMake Error at
> /usr/share/cmake-3.10/Modules/FindPackageHandleStandardArgs.cmake:137
> (message):
> Could NOT find ArrowPython (missing: ARROW_PYTHON_INCLUDE_DIR
> ARROW_PYTHON_LIB_DIR) (found version "3.0.0"){code}
>
> Once I've worked my way through this and any subsequent errors, I am able to
> succesfully compile my pyarrow/c++ code, but get the following Python runtime
> error:
> {code:java}
> ImportError: <redacted>: undefined symbol:
> _ZN5arrow2py14import_pyarrowEv{code}
>
> Any thoughts?
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