New submission from Brandon <ymbmg...@gmail.com>:
The regular expression used for matching numbers in the documentation for the regular expressions module (the tokenizer section) doesn't match the string ".5", but does match the string "3.". Here's a link to the tokenizer section of the documentation: https://docs.python.org/3/library/re.html#writing-a-tokenizer The tokenizer example uses r'\d+(\.\d*)?' for matching numbers. I would personally match ".5" as a number before I would match "3." as a number. In order to do this, I would use r'(\d*\.)?\d+' instead of r'\d+(\.\d*)?'. Python 3's interpreter matches both "3." and ".5" as numbers when interpreting code, so you could use a different regex example for matching both if you wanted to be consistent with Python's own interpreter. ---------- components: Regular Expressions messages: 366801 nosy: TheBrandonGuy, ezio.melotti, mrabarnett priority: normal severity: normal status: open title: RegEx for numbers in documentation (easy fix - solution provided) type: behavior versions: Python 3.5, Python 3.6, Python 3.7, Python 3.8, Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue40332> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
