New submission from Danny Yoo: This comes from diagnosing a beginner's question on Python-tutor.
https://mail.python.org/pipermail/tutor/2016-December/110066.html It appears that re.sub is not checking whether the count argument is integer or not, and silently accepts a nonsensical argument. For example: >>> import re >>> s = "AAAcBBB\nAAAdBBB" >>> print(re.sub(r'^AAA', "aaa", s, re.MULTILINE)) aaacBBB AAAdBBB Of course, the user intended to pass re.MULTILINE to flags, not to count, but the fact that this isn't raising a TypeError is error-prone. ---------- components: Library (Lib) messages: 282719 nosy: Danny Yoo priority: normal severity: normal status: open title: re.sub appears not to check count optional argument for integerness type: behavior versions: Python 3.4 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue28905> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
