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I just read a recent bugfix in asyncio:
Why only catching "except Exception:"? Why not also catching KeyboardInterrupt or MemoryError? Is it a special rule for asyncio, or a general policy in Python stdlib?
For me, it's fine to catch any exception using "except:" if the block contains "raise", typical pattern to cleanup a resource in case of error. Otherwise, there is a risk of leaking open file or not flushing data on disk, for example.