bpo-37323: Suppress DeprecationWarning raised by @asyncio.coroutine (GH-14293)



When the test is ran with `PYTHONWARNINGS=error` the environment variable is passed to the python interpreter used in `assert_python_ok` where `DeprecationWarning` from  `@asyncio.coroutine` is converted into an error. Ignore the `DeprecationWarning` in `assert_python_ok`.


https://bugs.python.org/issue37323
1 file changed