[Distutils] Shebang lines, /usr/bin/python, and PEP394

Barry Warsaw barry at python.org
Fri Jul 26 21:32:00 CEST 2013

On Jul 26, 2013, at 09:58 PM, Nick Coghlan wrote:

>Not everybody uses generated script wrappers, though - if there is a
>hardcoded "/usr/bin/env python" or "/usr/bin/python" in a shebang
>line, the Python build tools won't touch it. There's also a whole lot
>of software that isn't packaged at all - it's sitting around in user
>and admin home directories, or maybe in a shared directory on a file
>server or even in a private source control repo.

I actually think installing a script via setuptools should rewrite shebangs
even in the case of /usr/bin/env.

I love `#!/usr/bin/env python` *for development* but I really think its a bad
thing to have for installed scripts.  Certainly, for distro installed scripts,
it's (usually) terrible.  I think virtualenv installs are generally in the
same boat though - if you're installing a script into a virtualenv, it's
better to rewrite the shebang to use the executable that was used to install

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