R. David Murray added the comment: I think this is reasonable. A patch would be welcome.
You could use inspect. When I had to do something similar I just did the call inside a try/except, caught TypeError and retried without the extra argument. See the __init__ of email.feedparser.FeedParser. I don't know which approach is better; although, with the new signature support in 3.4 perhaps inspecting the signature is better. Another approach would be to designate a new method name for the new signature, and use hasattr to decide which to call. That's actually a bit more consistent with the way the SMTPChannel works. ---------- versions: +Python 3.5 -Python 3.4 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue19678> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
