# Python3 switch and python package install

**URL:** <https://discourse.slicer.org/t/python3-switch-and-python-package-install/6534>\
**Category:** Support\
**Created:** [April 17, 2019, 9:54pm UTC](https://discourse.slicer.org/t/python3-switch-and-python-package-install/6534 "2019-04-17T21:54:35Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [April 17, 2019, 9:54pm UTC](https://discourse.slicer.org/t/python3-switch-and-python-package-install/6534/1 "2019-04-17T21:54:35Z")

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Does switching to Python3 changed anything regarding install python packages with Slicer? I.e, is the preferred way still:  
`PythonSlicer -m pip install something` .

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [April 17, 2019, 10:39pm UTC](https://discourse.slicer.org/t/python3-switch-and-python-package-install/6534/2 "2019-04-17T22:39:50Z")

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The main difference is that you can install any Python3 package in Slicer’s Python environment, even on Windows.

@jcfr is still working out the details of how to automatically install Python packages required by extensions. Users will not need to manually pip install any Python packages but the extension manager will take care of that.

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [April 18, 2019, 7:04am UTC](https://discourse.slicer.org/t/python3-switch-and-python-package-install/6534/3 "2019-04-18T07:04:28Z")

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ok. That’s great.  
While the previous method worked, it required admin rights which is challenging to obtain at certain environments. An automatic install, without admin privileges will be great.  
Looking forward to it.