19 lines
669 B
Python
19 lines
669 B
Python
"""Block blocking calls being done in asyncio."""
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from http.client import HTTPConnection
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import time
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from .util.async_ import protect_loop
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def enable() -> None:
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"""Enable the detection of blocking calls in the event loop."""
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# Prevent urllib3 and requests doing I/O in event loop
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HTTPConnection.putrequest = protect_loop(HTTPConnection.putrequest) # type: ignore
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# Prevent sleeping in event loop. Non-strict since 2022.02
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time.sleep = protect_loop(time.sleep, strict=False)
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# Currently disabled. pytz doing I/O when getting timezone.
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# Prevent files being opened inside the event loop
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# builtins.open = protect_loop(builtins.open)
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