New submission from Sergey B Kirpichev <skirpic...@gmail.com>:
Right now: >>> from fractions import Fraction as F >>> F(1_2_3, 3_2_1) Fraction(41, 107) but >>> F('1_2_3/3_2_1') Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/home/sk/src/cpython/Lib/fractions.py", line 115, in __new__ raise ValueError('Invalid literal for Fraction: %r' % ValueError: Invalid literal for Fraction: '1_2_3/3_2_1' or even this (should be consistent with int constructor, isn't?): >>> F('1_2_3') Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/home/sk/src/cpython/Lib/fractions.py", line 115, in __new__ raise ValueError('Invalid literal for Fraction: %r' % ValueError: Invalid literal for Fraction: '1_2_3' Tentative patch attached. Let me know if this does make sense as a PR. ---------- components: Library (Lib) files: fractions-from-str.diff keywords: patch messages: 394633 nosy: Sergey.Kirpichev priority: normal severity: normal status: open title: Support PEP 515 for Fraction's initialization from string versions: Python 3.11 Added file: https://bugs.python.org/file50069/fractions-from-str.diff _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44258> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com