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

[Ned Deily]

Ned Deily <nad at acm.org> added the comment:

I agree the patch is not a good solution but it is relatively safe.  I 
suppose the current buggy behavior of Update Shell Profile *does* limit 
the growth to the number of Python versions you've installed.  However the 
patch does allow users not comfortable with shell scripts to move between 
versions.  On the other hand, they can always use the various IDLEs.  This 
whole area of PATH manipulation and symlinks for OS X could use a good re-
thinking; a lot of cruft has accumulated over the years and it gets worse 
with 4-way builds.

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