When we iterate over select without consuming a previously selected value, select raises a SelectError that derives from BaseException.
The use of BaseException combined with tasks consuming exceptions makes it hard to identify that anything happened, because a broad except Exception: block doesn't catch BaseExceptions.
What happened?
When we iterate over
selectwithout consuming a previously selected value, select raises aSelectErrorthat derives fromBaseException.The use of
BaseExceptioncombined with tasks consuming exceptions makes it hard to identify that anything happened, because a broadexcept Exception:block doesn't catchBaseExceptions.The use of
BaseExceptionin user code is not recommended according to python docs: https://docs.python.org/3/library/exceptions.html#BaseExceptionWhat did you expect instead?
A
except Exception:catchesselecterrors. i.e.SelectErrors derive fromExceptionand notBaseException.Affected part(s)
Synchronization of multiple sources (
select(),merge(), etc.) (part:synchronization)