[New-bugs-announce] [issue44267] Wrong PEP 515 parsing in decimal module (both C and Python versions)
Sergey B Kirpichev
report at bugs.python.org
Sun May 30 00:12:10 EDT 2021
New submission from Sergey B Kirpichev <skirpichev at gmail.com>:
While working on issue44258 I discover that the decimal module doesn't follow specification in PEP 515: "The current proposal is to allow one underscore between digits, and after base specifiers in numeric literals." (c)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: could not convert string to float: '1.1__1'
>>> from decimal import Decimal as C
>>> from _pydecimal import Decimal as P
Maybe this requirement could be relaxed in PEP, but it seems - this was already discussed (see Alternative Syntax section). Hence, I think this is a bug.
Patch for _pydecimal attached.
components: Extension Modules, Library (Lib)
title: Wrong PEP 515 parsing in decimal module (both C and Python versions)
versions: Python 3.11
Added file: https://bugs.python.org/file50071/_pydecimal-pep515.diff
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