# Extensions upgrade to Python3

**URL:** https://discourse.slicer.org/t/extensions-upgrade-to-python3/14074
**Category:** Development
**Tags:** extensions-manager
**Created:** [October 16, 2020, 9:23am UTC](https://discourse.slicer.org/t/extensions-upgrade-to-python3/14074 "2020-10-16T09:23:17Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![Frederic](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/frederic/32/4907_2.png) [@Frederic](https://discourse.slicer.org/u/Frederic)
#### Post date: [October 23, 2020, 2:24pm UTC](https://discourse.slicer.org/t/extensions-upgrade-to-python3/14074/6 "2020-10-23T14:24:27Z")

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I got it. It was a [coordinate problem](https://discourse.slicer.org/t/ras-to-lps-origin-shift/7075).  
For the next one with the same issue, you just have to place this code (here in python) when you create you object.stl:

`writer.SetHeader("Name of the output. SPACE=RAS")`

[GeodesicSlicer](https://github.com/FredericBr/SlicerGeodesic) is now ready for Slicer 4.11!

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_[View the full topic](https://discourse.slicer.org/t/extensions-upgrade-to-python3/14074)._