import sys if sys.version_info < (3,): try: from thread import allocate_lock except ImportError: from dummy_thread import allocate_lock else: try: from _thread import allocate_lock except ImportError: from _dummy_thread import allocate_lock ##import sys ##l1 = allocate_lock ##class allocate_lock(object): ## def __init__(self): ## self._real = l1() ## def __enter__(self): ## for i in range(4, 0, -1): ## print sys._getframe(i).f_code ## print ## return self._real.__enter__() ## def __exit__(self, *args): ## return self._real.__exit__(*args) ## def acquire(self, f): ## assert f is False ## return self._real.acquire(f)