# Extension adding an entry to Slicer-XYZ.ini \[PYTHONPATH\]

**URL:** <https://discourse.slicer.org/t/extension-adding-an-entry-to-slicer-xyz-ini-pythonpath/1976>\
**Category:** Development\
**Tags:** extensions-manager, python\
**Created:** [January 30, 2018, 4:18pm UTC](https://discourse.slicer.org/t/extension-adding-an-entry-to-slicer-xyz-ini-pythonpath/1976 "2018-01-30T16:18:09Z")\
**Posts on this page:** 1\
**Showing post:** 17

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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:** [February 20, 2018, 1:16am UTC](https://discourse.slicer.org/t/extension-adding-an-entry-to-slicer-xyz-ini-pythonpath/1976/17 "2018-02-20T01:16:45Z")

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`import cv2` works well on Windows (latest nightly).

Do you have this problem on Mac? Maybe it’s the same Apple SIP policy issue that plagues so many other things - see for example [Tutorial for using pyradiomics, no module named \_collections](https://discourse.slicer.org/t/tutorial-for-using-pyradiomics-no-module-named-collections/2111/7).

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