Le 17/07/2017 à 15:26, Isaac Morland a écrit : > > I think I understand well enough to say something intelligent… > > While actual references to _source are likely rare (certainly I’ve never > used it), my understanding is that the way namedtuple works is to > construct _source, and then exec it to create the class. Once that is > done, there is no significant saving to be had by throwing away the > constructed _source value.
The proposed resolution on https://bugs.python.org/issue28638 is to avoid exec() on most parts of the namedtuple class, hence speeding up the class creation. > I come from > a non-Pythonic background so use of exec still feels a bit weird to me > but I absolutely love namedtuple and use it constantly. I think for most Python programmers, it still feels a bit un-Pythonic. While exec() is part of Python, it's generally only used in fringe cases where nothing else works. Regards Antoine. _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
