[Distutils] Single version number

[Jean-Paul Calderone]

On Fri, 10 Jul 2009 15:58:32 +0300, Marius Gedminas <marius at pov.lt> wrote:
>What do people use to avoid repeating the version number both in the
>setup.py as well as in application/library code, when the
>application/library wants to know its own version number?
>
>I've seen several options:
>
>  1) put __version__ = '4.2' in yourpackage/__init__.py, have setup.py
>     do from yourpackage import __version__ and pass that to setup()
>
>  2) put __version__ = '4.2' in yourpackage/__init__.py, have setup.py
>     execfile(os.path.join(os.path.dirname(__file__), 'src', 'yourpackage',
>                           '__init__.py'), d), then use d['__version__']
>
>  3) put a file called version.txt in yourpackage/, have setup.py read
>     it, make sure it's included in MANIFEST.in
>
>  4) I don't recall actually ever seeing this one, but it should be
>     possible to use pkg_resources to query the version of yourpackage
>     (downside: if you're running from a source checkout without
>     installing, you won't get the right version number)
>

There was some discussion of this here a couple months ago:

http://mail.python.org/pipermail/distutils-sig/2009-May/011913.html

Jean-Paul