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https://issues.apache.org/jira/browse/ARROW-17771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17606501#comment-17606501
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H. Vetinari commented on ARROW-17771:
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> Currently this issue is fixed with setting an additional environment variable
> {{CONDA_DLL_SEARCH_MODIFICATION_ENABLE=1}}
I've only ever seen this be necessary for prioritizing conda-DLLs over stuff in
C:/System32 (e.g. openssl), but AFAIU the efforts of Isuru and other people in
core is to make this variable obsolete (by having things work correctly by
default). I think newer CPython versions by conda-forge might not even have it
anymore. Which version of Python is this failing with, and what libraries are
missing?
> [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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