# Issue when pip\_install("matplotlib wxPython")

**URL:** <https://discourse.slicer.org/t/issue-when-pip-install-matplotlib-wxpython/16604>\
**Category:** Development\
**Created:** [March 17, 2021, 8:20pm UTC](https://discourse.slicer.org/t/issue-when-pip-install-matplotlib-wxpython/16604 "2021-03-17T20:20:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![siaeleni](https://avatars.discourse-cdn.com/v4/letter/s/b4bc9f/32.png) [@siaeleni](https://discourse.slicer.org/u/siaeleni)\
**Post date:** [March 17, 2021, 8:20pm UTC](https://discourse.slicer.org/t/issue-when-pip-install-matplotlib-wxpython/16604/1 "2021-03-17T20:20:52Z")

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Hello,

I try to install `pip_install("matplotlib wxPython")` on Slicer Stable version 4.11.20210226 and it freezes and does not respond. This is what I get in Python Interactor:

 ![issue](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/4/6/4655b4e0fcba88b1083671583d53832d432f4431.jpeg)

Do you have any idea why?

Thanks,  
Eleni

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<div class="post-metadata">

**Author:** ![jcfr](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jcfr/32/17825_2.png) [@jcfr](https://discourse.slicer.org/u/jcfr)\
**Post date:** [March 17, 2021, 9:36pm UTC](https://discourse.slicer.org/t/issue-when-pip-install-matplotlib-wxpython/16604/2 "2021-03-17T21:36:45Z")

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I suggest you try again using the following command:

```auto
pip_install("matplotlib wxPython --verbose")

```

This should help understand which command is blocking …