Traceback (most recent call last):
  File "/Users/bcannon/Repositories/cpython/default/Lib/test/test_asyncio/test_unix_events.py", line 329, in setUp
    self.loop = self.new_test_loop()
  File "/Users/bcannon/Repositories/cpython/default/Lib/asyncio/test_utils.py", line 413, in new_test_loop
    self.set_event_loop(loop)
  File "/Users/bcannon/Repositories/cpython/default/Lib/asyncio/test_utils.py", line 407, in set_event_loop
    events.set_event_loop(None)
  File "/Users/bcannon/Repositories/cpython/default/Lib/asyncio/events.py", line 581, in set_event_loop
    get_event_loop_policy().set_event_loop(loop)
AttributeError: 'object' object has no attribute 'set_event_loop'

~/cpython$ ./python.exe -O -m test test_asyncio -m test_set_event_loop
Raised RLIMIT_NOFILE: 256 -> 1024
0:00:00 load avg: 2.02 Run tests sequentially
0:00:00 load avg: 2.02 [1/1] test_asyncio
test test_asyncio failed -- Traceback (most recent call last):
  File "/Users/guido/cpython/Lib/test/test_asyncio/test_events.py", line 2595, in test_set_event_loop
    self.assertRaises(AssertionError, policy.set_event_loop, object())
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: AssertionError not raised by set_event_loop

~/cpython$ ./python.exe -O -m test test_asyncio -m test_create_datagram_endpoint_addr_error
0:00:00 load avg: 2.19 Run tests sequentially
0:00:00 load avg: 2.19 [1/1] test_asyncio
test test_asyncio failed -- Traceback (most recent call last):
  File "/Users/guido/cpython/Lib/test/test_asyncio/test_base_events.py", line 1593, in test_create_datagram_endpoint_addr_error
    self.assertRaises(
    ^^^^^^^^^^^^^^^^^^
  File "/Users/guido/cpython/Lib/unittest/case.py", line 734, in assertRaises
    return context.handle('assertRaises', args, kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/guido/cpython/Lib/unittest/case.py", line 218, in handle
    callable_obj(*args, **kwargs)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/guido/cpython/Lib/asyncio/base_events.py", line 637, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "/Users/guido/cpython/Lib/asyncio/base_events.py", line 1287, in create_datagram_endpoint
    infos = await self._ensure_resolved(
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/guido/cpython/Lib/asyncio/base_events.py", line 1369, in _ensure_resolved
    info = _ipaddr_info(host, port, family, type, proto, *address[2:])
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: _ipaddr_info() takes from 5 to 7 positional arguments but 12 were given