regression.py 文件源码

def __enter__(self):
        gc.disable()
        _gc_lock.acquire()
        loc = flask._request_ctx_stack._local

        # Force Python to track this dictionary at all times.
        # This is necessary since Python only starts tracking
        # dicts if they contain mutable objects.  It's a horrible,
        # horrible hack but makes this kinda testable.
        loc.__storage__['FOOO'] = [1, 2, 3]

        gc.collect()
        self.old_objects = len(gc.get_objects())