On Wed, Oct 17, 2012 at 4:01 AM, Felix Yan <felixonmars@gmail.com> wrote:

Hi all,

I have written a tool [1] in python and packaged it in AUR [2], now I have the following problem:

1) The tool is written compatible with python 2.7 and 3.x, so I'd like to depends on something like (python>=2.7), but the package python2 does not provides python=$pkgver. So what should the package depend on? (is there an "or"-like operator in depends=?)

You can't specify an "OR dependency relation" in a PKGBUILD, so it's up to you whether it'll depend on 'python' or 'python2'.

2) How about the shebang line then? Now it is "/usr/bin/env python" but if the user only installed python2 this won't work correctly in the default case.

"/usr/bin/env python3" if you decide on Python 3; "/usr/bin/env python2" otherwise. It may be a good idea to keep "/usr/bin/env python" on Github and change it using sed(1) in the PKGBUILD. This way the upstream script will support both major Python versions, while the AUR package can be tailored for Arch.

I've been keeping a watchful eye on recent rebuilds of python packages, but still confused about the above situation, thanks for any ideas :)

[1] https://github.com/felixonmars/ydcv [2] https://aur.archlinux.org/packages.php?ID=62759

Felix Yan Twitter: @felixonmars Wiki: http://felixc.at