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https://issues.apache.org/jira/browse/ARROW-17771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17606507#comment-17606507
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Alenka Frim commented on ARROW-17771:
-------------------------------------
Thank you for helping with this issue [~h-vetinari]!
It is failing with Python 3.8 and 3.9. I haven't tried with version 3.10
locally but can do so later today.
Could the issue be that Arrow DLLs and Arrow Python (PyArrow C++) DLL are in a
different location?
* Arrow libraries are installed into {{ARROW_HOME}} location
* {{arrow_python}} is installed into {{arrow/python/pyarrow}} location which
is different from {{ARROW_HOME}} and this lib is the one that is missing/can't
be found
> [Python] Python does not finds the DLLs correctly on Windows
> ------------------------------------------------------------
>
> Key: ARROW-17771
> URL: https://issues.apache.org/jira/browse/ARROW-17771
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Reporter: Alenka Frim
> Priority: Critical
> Fix For: 10.0.0
>
>
> It seems that after the Python refactoring PR
> [https://github.com/apache/arrow/pull/13311] Python is unable to find
> {{arrow_python}} even though the library it is imported into the correct
> directory.
> Currently this issue is fixed with setting an additional environment variable:
> {code:}
> CONDA_DLL_SEARCH_MODIFICATION_ENABLE=1
> {code}
> We need to investigate further why this error is happening after the
> [refactoring|https://github.com/apache/arrow/pull/13311] and make sure Python
> is able to find the libraries on Windows without the additional env vars
> being specified.
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