[…] Past that, macOS is going to be the
largest casualty since their system Python does not support TLSv1.2 yet in any
version of their OS.
Not just the system Python on OSX, this also affects all
Python.org installers for OSX except 3.6. The 3.6 installer is the first one that doesn’t use the system installation of OpenSSL. Annoyingly with OpenSSL on OSX you have to options: either use an up-to-date release or have OpenSSL use the system CA trust store, but not both. Sigh…
I have no idea how may users use the
Python.org installers on OSX, but this has the potential to affect a largish number of users on OSX including newbies (but far from all users on OSX, there’s also a sizeable population using Homebrew or Anaconda).