Eric Snow added the comment: Any chance we could revive ModuleNotFoundError? It's nice to be able to distinguish between the failure to *find* the module during import from other uses of ImportError. I'd definitely expect it to work the way Guido explained. Basically only importlib._bootstrap._find_and_load_unlocked() would raise ModuleNotFoundError (when _find_spec() returns None).
I've found the exception to be very useful while working on the importlib backport (https://bitbucket.org/ericsnowcurrently/importlib2). My desire for adding ModuleNotFoundError is unrelated to its internal use in importlib that motivated the original request (see msg182332). Here's the signature: ModuleNotFoundError(*args, name=None), inherits from ImportError For reference, here's ImportError: ImportError(*args, name=None, path=None) ModuleNotFoundError would need to be exposed somewhere sensible since once people see in tracebacks they'll want to catch it. :) I'd expect that to be either in builtins or as importlib.ModuleNotFoundError. We may be able to get away with not adding it to builtins, but maybe it would still make sense. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue15767> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
