Oh, a LOT of things are dependent on Python 2. If you check open source
repositories for IBM stuff a LOT is still running on Python2. Python is a
lot older than most of us assume and there are loads of code for each
version. Even within the 3.x branch there are lots of improvements between
versions and validations needed before moving up a level, you might end up
having Python 2, 3.4, 3.6, 3.7, 3.8 installed for different programs.
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