find_python_dependencies.py: recursively search for Python modules

[Luca Falavigna <dktrkranz@debian.org>]

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Hi,

I've just committed some changes to find_python_dependencies.py script
[1] to recursively search import of modules under try... except... and
try... finally... blocks. Source code changes can be seen at [2].


What changed?
Suppose we have this Python file (test/test.py):

    #!/usr/bin/python
    import os
    try:
        import gtk
    except:
        pass
    try:
        import gobject
    finally:
        pass

Old version of find_python_dependencies.py returns this:

    $ ./OLD_find_python_dependencies.py test
    {'os': ('python2.5-minimal', 1)}
    {}
    $

As you can see, there is no trace of both gtk and gobject modules.
Now let's launch new version:

    $ ./find_python_dependencies.py test
    {'gobject': ('python-gobject', 1),
     'gtk': ('python-gtk2', 1),
     'os': ('python2.5-minimal', 1)}
    {}
    $

New version now lists every module, so chances to miss one are reduced.
One drawback is modules are still listed in a single dictionary, so you
have to grep the code to see if one or more modules are imported under a
try... except... or try... finally... block.


Please report any issue you encouter with this new approach.
Regards,


[1]http://svn.debian.org/viewsvn/python-modules/tools/find_python_dependencies.py
[2]http://svn.debian.org/viewsvn/python-modules/tools/find_python_dependencies.py?r1=6993&r2=9691

- --

  .''`.
 : :' :   Luca Falavigna <dktrkranz@debian.org>
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