New submission from Eric Smith <e...@trueblade.com>: It surprised me that this doesn't work: >>> "{0[-1]}".format('fox') Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: string indices must be integers
I was expecting it to be equivalent to: >>> "{0[2]}".format('fox') 'x' I don't think there's any particular reason this doesn't work. It would, however break the following code: >>> "{0[-1]}".format({'-1':'foo'}) 'foo' But note that this doesn't work currently: >>> "{0[1]}".format({'1':'foo'}) Traceback (most recent call last): File "<stdin>", line 1, in <module> KeyError: 1 ---------- assignee: eric.smith components: Interpreter Core keywords: easy messages: 99482 nosy: eric.smith priority: normal severity: normal status: open title: Should str.format allow negative indexes when used for __getitem__ access? type: feature request versions: Python 2.7, Python 3.2 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue7951> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com