failure.py 文件源码

def _debuginit(self, exc_value=None, exc_type=None, exc_tb=None,
             Failure__init__=Failure.__init__.im_func):
    if (exc_value, exc_type, exc_tb) == (None, None, None):
        exc = sys.exc_info()
        if not exc[0] == self.__class__ and DO_POST_MORTEM:
            print "Jumping into debugger for post-mortem of exception '%s':" % exc[1]
            import pdb
            pdb.post_mortem(exc[2])
    Failure__init__(self, exc_value, exc_type, exc_tb)