cpython

bpo-39031: Include elif keyword when producing lineno/col-offset info for if_stmt (GH-17582)

Fix warnings in test_asyncio.test_base_events (#17577)

bpo-38614: Use support timeout constants (GH-17572)

bpo-38614: Use test.support.SHORT_TIMEOUT constant (GH-17566)

bpo-39022, bpo-38594: Sync with importlib_metadata 1.3 (GH-17568)