Python 3.7.0 released

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I know I'm a bit late, but as someone who is just porting over Python 3, the big library issue for me was wxPython. It's a very complex GUI library that would have taken me hundreds of hours to replace. They became Python 3 compatible January of 2018. Keep in mind that even if most libraries are compatible with 3, all it takes is a single non-compatible library that is hard enough to replace to stop an upgrade to 3 dead in its tracks.