[issue5225] OS X "Update Shell Profile" may not update $PATH if run more than once

[Ronald Oussoren]

Ronald Oussoren <ronaldoussoren at mac.com> added the comment:

I agree that we need a better solution to select which version of Python 
is the default one of your path.

One way to do that is to have a tool that can change the "Current" link 
inside the framework, that way we could have 
/Library/Frameworks/Python.framework/Version/Current/bin early on $PATH 
and add the various version directories after that.

I'd also like to see a per-user way to change the default python without 
manually editing the shell profile.

W.r.t. to the myriad of other variations in a 4-way universal build: 
those are necessary to ensure that you can easily force the use of a 32-
bit or 64-bit build because at the time a lot of GUI code required 32-
bit code. I hope this will change over time, I'd love to have a much 
simpler framework that contains only a single copy of the python 
executable instead of the 3 variants that are currently present in a 4-
way universal build.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5225>
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