mock flask.ext.restul.Resource heritance

mock Resource.py

from mock import MagicMock, patch
import sys


restful = MagicMock(autospec=True)
attrs = {'__init__': lambda *args, **kwargs: None}
bases = (object,)
Res = type('Resource', bases, attrs)
restful.Resource = Res
with patch.dict(         
        'sys.modules',
	 {'flask.ext.restful': restful,
         }
):
    from truc import chose # c'est la que flask.ext.restful.Resource -> A(Resource) -> B(A)