[maemo-developers] Autobuilder and Python package dependencies

[From: Benoît HERVIER]

2008/11/12, tz <thomas at mich.com>:
> As far as I can tell, because there is nothing equivalent to the
>  build-packages (things which require things like libdbus-dev or other
>  -dev entries) for Python programs submitted to extras-devel.
>
>  This is a problem because I don't think the dependency list is checked
>  against the import lines of any python file in the package.
>
>  So a package that needs to pull in one of the other python
>  modules/libraries (dbus, gnome, etc.) won't do so and will simply (and
>  if not run from xterm silently) fail.
>
>  And I don't always know which packages I need to specify explicitly
>  since many pull others in automatically, or they are pulled in by
>  almost every python program.
>
>  Is there any way to get the autobuilder to try running any python
>  packages and failing the "build" if the required imports aren't there
>  (or should this be added to bugzilla, and if so, under which
>  category?)
>
>  Would it be possible or reasonable to have stubs (something like
>  python loader) for them all so that "import dbus" instead of failing
>  would fetch and install the package?
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>

Hello,

A such check can t be done by autobuilder, as you know, python can
load dynamically modules, you can load a module only when user press a
button in an ui, as this module function is just use here. And as you
should know python raise a exception on the import only when python
interpreter try to execute it, not at the loading/parsing of the
python code. In my example, a such exception is raise when user click
on the button.

But there is a package name python2.5-runtime which depends on all
packages made by the pymaemo team. So it s install all package made by
the pymameo team, and for third party python module package just
specify it.

For example pygtkeditor package depends on python2.5-runtime and
pygtksourceview2.

I don t think it s a good way to do things like that as it s install
many unneed packages on the users device.

But if you have create the program you should know which module it
use, if you just port it,  use pychecker to know which module could be
use.


-- 
Benoît HERVIER - http://khertan.net/