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Author zillionare
Recipients zillionare
Date 2022-01-02.03:36:03
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <1641094564.17.0.420361476444.issue46223@roundup.psfhosted.org>
In-reply-to
Content 
When running code in debug mode, asyncio sometimes enter into infinite loop, shows as the following:

```
Current thread 0x00007f1c15fc5180 (most recent call first):
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/events.py", line 58 in __repr__
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 139 in repr_instance
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 62 in repr1
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 52 in repr
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 40 in <genexpr>
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 40 in _format_args_and_kwargs
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 56 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 47 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 23 in _format_callback_source
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 32 in format_cb
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 37 in _format_callbacks
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 76 in _future_repr_info
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 139 in repr_instance
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 62 in repr1
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 52 in repr
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 38 in <genexpr>
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 38 in _format_args_and_kwargs
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 56 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 23 in _format_callback_source
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/events.py", line 51 in _repr_info
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/events.py", line 61 in __repr__
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 139 in repr_instance
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 62 in repr1
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 52 in repr
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 40 in <genexpr>
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 40 in _format_args_and_kwargs
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 56 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 47 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 23 in _format_callback_source
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 32 in format_cb
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 37 in _format_callbacks
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 76 in _future_repr_info
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 139 in repr_instance
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 62 in repr1
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 52 in repr
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 38 in <genexpr>
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 38 in _format_args_and_kwargs
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 56 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 23 in _format_callback_source
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/events.py", line 51 in _repr_info
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/events.py", line 61 in __repr__
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 139 in repr_instance
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 62 in repr1
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 52 in repr
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 40 in <genexpr>
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 40 in _format_args_and_kwargs
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 56 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 47 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 23 in _format_callback_source
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 32 in format_cb
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 37 in _format_callbacks
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 76 in _future_repr_info
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 139 in repr_instance
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 62 in repr1
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 52 in repr
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 38 in <genexpr>
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 38 in _format_args_and_kwargs
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 56 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 23 in _format_callback_source
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/events.py", line 51 in _repr_info
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/events.py", line 61 in __repr__
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 139 in repr_instance
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 62 in repr1
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 52 in repr
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 40 in <genexpr>
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 40 in _format_args_and_kwargs
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 56 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 47 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 23 in _format_callback_source
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 32 in format_cb
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 37 in _format_callbacks
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 76 in _future_repr_info
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 139 in repr_instance
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 62 in repr1
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 52 in repr
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 38 in <genexpr>
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 38 in _format_args_and_kwargs
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 56 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 23 in _format_callback_source
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/events.py", line 51 in _repr_info
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/events.py", line 61 in __repr__
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 139 in repr_instance
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 62 in repr1
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 52 in repr
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 40 in <genexpr>
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 40 in _format_args_and_kwargs
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 56 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 47 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 23 in _format_callback_source
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 32 in format_cb
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 37 in _format_callbacks
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/base_futures.py", line 76 in _future_repr_info
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 139 in repr_instance
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 62 in repr1
  File "/root/miniconda3/envs/omicron/lib/python3.9/reprlib.py", line 52 in repr
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 38 in <genexpr>
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 38 in _format_args_and_kwargs
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 56 in _format_callback
  File "/root/miniconda3/envs/omicron/lib/python3.9/asyncio/format_helpers.py", line 23 in _format_callback_source
```

the code cause problem is as following:
```
class TestSyncJobs(unittest.IsolatedAsyncioTestCase):
    async def asyncSetUp(self) -> None:
        init_test_env()

        await emit.start(engine=emit.Engine.REDIS, dsn=cfg.redis.dsn, start_server=True, heart_beat=1)

        await self.create_quotes_fetcher()

        # if we add the following line, the issue will gone
        # await asyncio.sleep(0.01)
        await omicron.init(aq)
```

sorry the code is not runnable. If you need more info, please tell us what and how to collect.

or if you would like to reproduce the issue by yourself, please try this branch: https://github.com/zillionare/omega/tree/zillionare/issue46
History
Date User Action Args
2022-01-02 03:36:04zillionaresetrecipients: + zillionare
2022-01-02 03:36:04zillionaresetmessageid: <1641094564.17.0.420361476444.issue46223@roundup.psfhosted.org>
2022-01-02 03:36:04zillionarelinkissue46223 messages
2022-01-02 03:36:03zillionarecreate