[FIXED] How do I do logging.exception() on exceptions gathered by asyncio.gather()?

Issue

I greatly enjoy the information returned by logging.exception(), however this function can only be used in an exception handler.

Now, running asyncio.gather(..., return_exceptions=True) does not raise exceptions; rather, the exceptions are returned as Exception objects.

I would like to log these Exceptions objects with the same details as with logging.exception(), but since I'm not in an exception handler, how do I do that?

Solution

You can take the exception instances returned by gather and pass them as exc_info like

results = asyncio.gather(*coros, return_exceptions=True)
for exc in [r for r in results if isinstance(r, BaseException)]
    logger.debug("message", exc_info=exc)

This should give the same output as logger.exception("message").

Answered By - thisisalsomypassword