./python.exe -m test test_types test_inspect fails as (env changed)

[sobolevn]

Bug report

» ./python.exe -m test test_types test_inspect                                  
Using random seed: 1107570136
0:00:00 load avg: 3.01 Run 2 tests sequentially in a single process
0:00:00 load avg: 3.01 [1/2] test_types
0:00:00 load avg: 3.01 [2/2] test_inspect.test_inspect
Warning -- asyncio.events._event_loop_policy was modified by test_inspect.test_inspect
Warning --   Before: None
Warning --   After:  <asyncio.unix_events._UnixDefaultEventLoopPolicy object at 0x102437760> 
test_inspect.test_inspect failed (env changed)

== Tests result: SUCCESS ==

1 test altered the execution environment (env changed):
    test_inspect.test_inspect

1 test OK.

Total duration: 1.0 sec
Total tests: run=473
Total test files: run=2/2 env_changed=1
Result: SUCCESS

I am working on the fix.

[sobolevn]

test_types.py can only contain import unittest.mock to trigger this problem.

[sobolevn]

Because import asyncio is called in import unittest.mock