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Dropping Python 2 in Houdini 19.5

SideFX will discontinue Python 2 support in Houdini 19.5 and beyond. You can view the news post in SideFX's forum here: https://www.sidefx.com/forum/topic/83757/

"After countless internal discussions, and discussions with studios and technology partners, the decision has been made to drop Python 2 support in the upcoming Houdini release.

Python 2 reached end-of-life back in January, 2020:
https://www.python.org/doc/sunset-python-2/

The next Houdini version will provide only Python 3 builds, in particular Python 3.7 and 3.9 builds as per the VFX Reference Platform.
http://vfxplatform.com/

Note that we will continue to publish Python 2 builds for Houdini 19.0."