[issue21444] __len__ can't return big numbers

Change by Zac Hatfield-Dodds : -- pull_requests: +17341 pull_request: https://github.com/python/cpython/pull/17934 ___ Python tracker ___

[issue21444] __len__ can't return big numbers

Raymond Hettinger added the comment: I recommend this be closed: too much impact on existing code for too little benefit. CPython has historically imposed some artificial implementation specific details in order make the implementation cleaner and faster internally (i.e. a limit on the

[issue21444] __len__ can't return big numbers

Changes by Benjamin Peterson benja...@python.org: -- resolution: - wont fix status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21444 ___

[issue21444] __len__ can't return big numbers

Changes by Jesús Cea Avión j...@jcea.es: -- nosy: +jcea ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21444 ___ ___ Python-bugs-list mailing list

[issue21444] __len__

Changes by Mark Dickinson dicki...@gmail.com: -- title: __len__ can't return big numbers - __len__ ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21444 ___

[issue21444] __len__ can't return big numbers

Changes by Mark Dickinson dicki...@gmail.com: -- title: __len__ - __len__ can't return big numbers ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21444 ___

[issue21444] __len__ can't return big numbers

Mark Dickinson added the comment: Whoops; sorry -- accidental title change by typing `__len__` into something that wasn't the search box. Stupid fingers... (I suspect this issue is a duplicate of an existing issue.) -- nosy: +mark.dickinson ___

[issue21444] __len__ can't return big numbers

R. David Murray added the comment: Mark: I thought it was too, but the two I noted were the closest I could find. Maybe you'll find something even more on point :) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21444

[issue21444] __len__ can't return big numbers

akira added the comment: If `len()` signature can't be changed to return Python int objects (unlimited) then the OverflowError may contain the actual `.length` property instead (based on msg66459 by Antoine Pitrou) operator.length(): def length(sized): Return the true (possibly

[issue21444] __len__ can't return big numbers

Mark Dickinson added the comment: That's pretty evil. :-) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21444 ___ ___ Python-bugs-list mailing

[issue21444] __len__ can't return big numbers

New submission from Ram Rachum: I want to use big numbers for length. class A: ... __len__ = lambda self: 10 ** 20 len(A()) Traceback (most recent call last): File pyshell#5, line 1, in module len(A()) OverflowError: cannot fit 'int' into an index-sized integer --

[issue21444] __len__ can't return big numbers

R. David Murray added the comment: While this is classed as a CPython implementation detail (see issue 15718) it doesn't sound like it is likely to be changed (see issue 2723). -- nosy: +r.david.murray ___ Python tracker rep...@bugs.python.org