[jira] [Assigned] (ARROW-6459) [C++] Remove "python" from conda_env_cpp.txt

["Alenka Frim (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-6459?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alenka Frim reassigned ARROW-6459:
----------------------------------

    Assignee:     (was: Alenka Frim)

> [C++] Remove "python" from conda_env_cpp.txt
> --------------------------------------------
>
>                 Key: ARROW-6459
>                 URL: https://issues.apache.org/jira/browse/ARROW-6459
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Wes McKinney
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 2h 50m
>  Remaining Estimate: 0h
>
> I'm not sure why "python" is in this dependency file -- if it is used to maintain a toolchain external to a particular Python environment then it confuses CMake like
> {code}
> CMake Warning at cmake_modules/BuildUtils.cmake:529 (add_executable):
>   Cannot generate a safe runtime search path for target arrow-python-test
>   because there is a cycle in the constraint graph:
>     dir 0 is [/home/wesm/code/arrow/cpp/build/debug]
>     dir 1 is [/home/wesm/miniconda/envs/arrow-3.7/lib]
>       dir 2 must precede it due to runtime library [libcrypto.so.1.1]
>     dir 2 is [/home/wesm/cpp-toolchain/lib]
>       dir 1 must precede it due to runtime library [libpython3.7m.so.1.0]
>   Some of these libraries may not be found correctly.
> Call Stack (most recent call first):
>   src/arrow/CMakeLists.txt:52 (add_test_case)
>   src/arrow/python/CMakeLists.txt:139 (add_arrow_test)
> {code}



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