» ./python.exe -m test test_typing   Using random seed: 31719993750:00:00 load avg: 1.44 Run 1 test sequentially0:00:00 load avg: 1.44 [1/1] test_typingtest test_typing failed -- Traceback (most recent call last):  File "/Users/sobolev/Desktop/cpython2/Lib/doctest.py", line 2267, in runTest    raise self.failureException(self.format_failure(new.getvalue()))AssertionError: Failed doctest test for typing.get_protocol_members  File "/Users/sobolev/Desktop/cpython2/Lib/typing.py", line 3398, in get_protocol_members----------------------------------------------------------------------File "/Users/sobolev/Desktop/cpython2/Lib/typing.py", line 3407, in typing.get_protocol_membersFailed example:    get_protocol_members(P)Expected:    frozenset({'a', 'b', 'c'})Got:    frozenset({'a', 'b'})test_typing failed (1 failure)== Tests result: FAILURE ==1 test failed:    test_typingTotal duration: 253 msTotal tests: run=601 failures=1 skipped=1Total test files: run=1/1 failed=1Result: FAILURE