On Tue, Apr 21, 2020 at 12:25:06PM -0700, Andrew Barnert via Python-ideas wrote: > On Apr 21, 2020, at 01:36, Serhiy Storchaka <storch...@gmail.com> wrote: > > > > except ValueError: # assuming that’s the exception you want? > > For what it’s worth, more_itertools.zip_equal raises an > UnequalIterablesError, which is a subclass of ValueError. > > I’m not sure whether having a special error class is worth it, but that’s > because nobody’s providing any examples of code where they’d want to handle > this error. Presumably there are cases where something else in the expression > could raise a ValueError for a different reason, and being able to catch this > one instead of that one would be worthwhile. But how often? No idea. >
> At a guess, I’d say that if this has to be a builtin (whether > flag-switchable behavior in zip or a new builtin function) it’s > probably not worth adding a new builtin exception, but if it’s going > to go into itertools it probably is worth it. Why? I know that the Python community has a love-affair with more-itertools, but I don't think that it is a well-designed library offering good APIs. It's a grab-bag of "everything including the kitchen sink". Just because they use a distinct exception doesn't mean we should follow them. -- Steven _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/MLKHCIEW5GOJFLGHDCYOTGNFZRGXXM7T/ Code of Conduct: http://python.org/psf/codeofconduct/
