I knew this was a feature!!! ....features such as these should be fixed! %)
On Sat, Mar 3, 2012 at 03:38, R. David Murray <rdmur...@bitdance.com> wrote: > On Sat, 03 Mar 2012 03:06:33 +0400, "Alex A. Naanou" <alex.na...@gmail.com> > wrote: >> Hi everyone, >> >> Just stumbled on a fun little thing: >> >> We create a simple structure... >> >> l = ([],) >> >> >> Now modify the list, and... >> >> l[0] += [1] >> >> >> ...we fail: >> ## Traceback (most recent call last): >> ## File "F:\work\ImageGrid\cur\ImageGrid\src\test\python-bug.py", >> line 17, in <module> >> ## l[0] += [1] >> ## TypeError: 'tuple' object does not support item assignment > > What is even more fun is that the append actually worked (try printing > l). > > This is not a bug, it is a quirk of how extended assignment works. > I think there's an issue report in the tracker somewhere that > discusses it. > > --David -- Alex. _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
