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Came here to ask the same question. Under archlinux python 3 is the default, which breaks scripts who don't specify that their are python 2 only and start with #!/usr/bin/python and not #!/usr/bin/python2. But even there as user I don't see the need for this tool.


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Commented above as a reply to @calpaterson; I'll paste the same comment below.

> I wrote about this in the FAQ (https://github.com/qw3rtman/p#faqs), but I'll reiterate the main use case below.

> p is for the average Python developer who just needs to work with a different version of Python. Suppose one wants to start using the latest development release of Python; they just run `p latest` and p will take care of the rest.

> `p` is a wrapper that handles and manages everything for you, simplifying the process for those who aren't familiar with tox or virtualenvwrapper. :)


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