# I can't install libraries

**URL:** <https://discuss.python.org/t/i-cant-install-libraries/20594>\
**Category:** Python Help\
**Tags:** help\
**Created:** [October 31, 2022, 11:56pm UTC](https://discuss.python.org/t/i-cant-install-libraries/20594 "2022-10-31T23:56:50Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![MRAB](https://avatars.discourse-cdn.com/v4/letter/m/e9c0ed/32.png) [@MRAB](https://discuss.python.org/u/MRAB)\
**Post date:** [November 1, 2022, 1:55am UTC](https://discuss.python.org/t/i-cant-install-libraries/20594/2 "2022-11-01T01:55:53Z")

</div>

The traceback mentions Python 3.9, e.g.

```auto
File "D:\msys64\mingw64\lib\python3.9\site-packages\pip\_vendor\pep517\in_process\_in_process.py", line 351, in <module>

```

On Windows it’s recommended to use the Python Launcher `py`:

```auto
py -3.11 -m pip install matplotlib

```

I have it installed here on Python 3.11 on Windows without a problem.

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