» ./python.exe -m test test_typing   
Using random seed: 3171999375
0:00:00 load avg: 1.44 Run 1 test sequentially
0:00:00 load avg: 1.44 [1/1] test_typing
test 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_members
Failed 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_typing

Total duration: 253 ms
Total tests: run=601 failures=1 skipped=1
Total test files: run=1/1 failed=1
Result: FAILURE