Comment 3 for bug 703330

Sorry Julien, but the package FTBFS in clean natty pbuilder chroot:

dpkg-buildpackage: host architecture amd64
 fakeroot debian/rules clean
dh clean
   dh_testdir
   debian/rules override_dh_auto_clean
make[1]: Entering directory `/tmp/buildd/sessioninstaller-0.20+bzr117'
dh_auto_clean
Traceback (most recent call last):
  File "setup.py", line 3, in <module>
    import DistUtilsExtra.auto
  File "/usr/lib/python2.6/dist-packages/DistUtilsExtra/auto.py", line 41, in <module>
    import ast
ImportError: No module named ast
dh_auto_clean: python2.6 setup.py clean -a returned exit code 1
make[1]: *** [override_dh_auto_clean] Error 1
make[1]: Leaving directory `/tmp/buildd/sessioninstaller-0.20+bzr117'
make: *** [clean] Error 2
dpkg-buildpackage: error: fakeroot debian/rules clean gave error exit status 2
E: Failed autobuilding of package

Please fix this error.

Thanks!