Comment 3 for bug 519222

So, just had a quick look.
There is two bugs with the installed version of quickly with python setup.py install:
$ which quickly
/usr/local/bin/quickly
$ quickly --version
PYTHONPATH = None
PATH = ['/usr/local/bin', '/usr/lib/python2.6', '/usr/lib/python2.6/plat-linux2', '/usr/lib/python2.6/lib-tk', '/usr/lib/python2.6/lib-old', '/usr/lib/python2.6/lib-dynload', '/usr/lib/python2.6/dist-packages', '/usr/lib/python2.6/dist-packages/PIL', '/usr/lib/python2.6/dist-packages/gst-0.10', '/usr/lib/pymodules/python2.6', '/usr/lib/python2.6/dist-packages/gtk-2.0', '/usr/lib/pymodules/python2.6/gtk-2.0', '/usr/lib/python2.6/dist-packages/wx-2.6-gtk2-unicode', '/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode', '/usr/local/lib/python2.6/dist-packages']
Traceback (most recent call last):
  File "/usr/local/bin/quickly", line 35, in <module>
    from quickly import commands, configurationhandler, quicklyconfig, coreupgrade, tools, version

So, PATH put before /usr/lib/python2.6/ than /usr/local/lib/python2.6/. Consequently, it will be the packaged version of Quickly library which will be taken rather than the local one. Not sure why the path has this value on Ubuntu system (normally /usr/local is always before /usr).
A workaround is of course exporting the PYTHONPATH to /usr/local/lib/python2.6/dist-packages

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The second one is that self.prefix in distutils is set to /usr, even if you use python setup.py install which install in /usr/local…

I don't really understand why and how that setup. So, when I try to refresh quickly_data_path in config.py when building, it's set to /usr/share/quickly/data and no /usr/share/local/quickly/data. That's why you got this "no command…" error (if you didn't install the packaged version of Quickly)