In python3.4.1 all tests cause <Task pending _read_data() > warning.

Recently I’ve updated my python to 3.4.1 (debian testing switched to this version), as result every single test in aioredis causes following warning (however no warning with python3.4):

Task was destroyed but it is pending!
task: <Task pending _read_data() at /home/nick/sources/python/aioredis/aioredis/connection.py:78 wait_for=<Future pending cb=[Task._wakeup()]>>

I tried to run tests with PYTHONASYNCIODEBUG=1 and got following exception:

 pending _read_data() at /home/nick/sources/python/aioredis/aioredis/connection.py:78 wait_for=<Future pending cb=[Task._wakeup()]>>
Task was destroyed but it is pending!
source_traceback: Object created at (most recent call last):
  File "runtests.py", line 290, in <module>
    runtests()
  File "runtests.py", line 273, in runtests
    failfast=failfast).run(tests)
  File "/usr/lib/python3.4/unittest/runner.py", line 168, in run
    test(result)
  File "/usr/lib/python3.4/unittest/suite.py", line 87, in __call__
    return self.run(*args, **kwds)
  File "/usr/lib/python3.4/unittest/suite.py", line 125, in run
    test(result)
  File "/usr/lib/python3.4/unittest/case.py", line 625, in __call__
    return self.run(*args, **kwds)
  File "/usr/lib/python3.4/unittest/case.py", line 577, in run
    testMethod()
  File "tests/connection_test.py", line 35, in test_global_loop
    ('localhost', self.redis_port), db=0))
  File "/usr/lib/python3.4/asyncio/base_events.py", line 239, in run_until_complete
    self.run_forever()
  File "/usr/lib/python3.4/asyncio/base_events.py", line 212, in run_forever
    self._run_once()
  File "/usr/lib/python3.4/asyncio/base_events.py", line 912, in _run_once
    handle._run()
  File "/usr/lib/python3.4/asyncio/events.py", line 96, in _run
    self._callback(*self._args)
  File "/usr/lib/python3.4/asyncio/tasks.py", line 298, in _wakeup
    self._step(value, None)
  File "/usr/lib/python3.4/asyncio/tasks.py", line 244, in _step
    result = next(coro)
  File "/usr/lib/python3.4/asyncio/coroutines.py", line 78, in __next__
    return next(self.gen)
  File "/home/nick/sources/python/aioredis/aioredis/connection.py", line 42, in create_connection
    conn = RedisConnection(reader, writer, encoding=encoding, loop=loop)
  File "/home/nick/sources/python/aioredis/aioredis/connection.py", line 63, in __init__
    self._reader_task = asyncio.Task(self._read_data(), loop=self._loop)
task: <Task pending _read_data() at /home/nick/sources/python/aioredis/aioredis/connection.py:78 wait_for=<Future pending cb=[Task._wakeup()]>>
make: *** [test] Error

Any idea how to mute this warning?

[popravich]

Hi, in your case you sould use at least r.close()and at most:

r.close()
loop.run_until_complete(r.wait_closed())

before exit() call

[dellis23]

@popravich Very helpful, thanks. It might be worth putting in the docs, for example here: http://aioredis.readthedocs.io/en/v0.3.0/api_reference.html It’s a bit confusing to see the Task was destroyed but it is pending! when just following the examples.