Hmm, it seems to work for me, but not Marisa...

She's including the right calibcant though:

wking$ python -c 'import calibcant; print calibcant.__file__'
/home/wking/lib/python/calibcant-0.3-py2.5.egg/calibcant/__init__.pyc

mroman$ python -c 'import calibcant; print calibcant.__file__'
/home/wking/lib/python/calibcant-0.3-py2.5.egg/calibcant/__init__.pyc