Description of problem:
Cannot import from gi.repository

Version-Release number of selected component (if applicable):
pygobject3-3.3.4-8.fc18.x86_64
python3-gobject-3.3.4-8.fc18.x86_64
python3-3.3.0-0.4.rc1.fc18.x86_64

How reproducible:
100%

Steps to Reproduce:
1. Open terminal window and run python3
2. "Type from gi.repository import Gtk" and press enter key
3.
  
Actual results:
>>> from gi.repository import Gtk
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib64/python3.3/site-packages/gi/__init__.py", line 23, in <module>
    from ._gi import _API, Repository
ValueError: level must be >= 0
>>> Gtk.Window()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'Gtk' is not defined

>>> from gi.repository import cairo
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib64/python3.3/site-packages/gi/__init__.py", line 23, in <module>
    from ._gi import _API, Repository
ValueError: level must be >= 0



Expected results:
Just works with no error

Additional info:
Worked properly several versions back. Not sure when it broke