Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/dist-packages/gi/overrides/GLib.py", line 182, in __repr__
return "GLib.Variant('%s', %s)" % (self.format_string, self.print_(True))
AttributeError: 'Variant' object has no attribute 'format_string'