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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Should str.format allow negative indexes when used for __getitem__ access?","articleBody":"BPO | [7951](https://bugs.python.org/issue7951)\n--- | :---\nNosy | @rhettinger, @terryjreedy, @mdickinson, @ericvsmith, @merwok, @florentx, @rovitotv, @marco-buttu, @ikamensh, @iritkatriel\nFiles | \u003cli\u003e[format_negative_indexes-2.7.diff](https://bugs.python.org/file17712/format_negative_indexes-2.7.diff \"Uploaded as text/plain at 2010-06-18.19:50:38 by gosella\"): patch against trunk\u003c/li\u003e\u003cli\u003e[format_negative_indexes-3.2.diff](https://bugs.python.org/file17713/format_negative_indexes-3.2.diff \"Uploaded as text/plain at 2010-06-18.19:52:52 by gosella\"): patch against 3.2\u003c/li\u003e\u003cli\u003e[format_no_fields_with_negative_indexes-2.7.diff](https://bugs.python.org/file17768/format_no_fields_with_negative_indexes-2.7.diff \"Uploaded as text/plain at 2010-06-25.18:48:21 by gosella\"): Don't allow negative fields\u003c/li\u003e\u003cli\u003e[7951NegativeIndexesForStringFormat3dot4.patch](https://bugs.python.org/file29948/7951NegativeIndexesForStringFormat3dot4.patch \"Uploaded as text/plain at 2013-04-20.03:06:40 by @rovitotv\")\u003c/li\u003e\n\n\u003csup\u003e*Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.*\u003c/sup\u003e\n\n\u003cdetails\u003e\u003csummary\u003eShow more details\u003c/summary\u003e\u003cp\u003e\n\nGitHub fields:\n```python\nassignee = 'https://github.com/terryjreedy'\nclosed_at = \u003cDate 2021-12-01.01:47:31.771\u003e\ncreated_at = \u003cDate 2010-02-17.23:54:17.722\u003e\nlabels = ['easy', '3.11', 'type-feature', 'docs']\ntitle = 'Should str.format allow negative indexes when used for __getitem__ access?'\nupdated_at = \u003cDate 2021-12-01.01:47:31.769\u003e\nuser = 'https://github.com/ericvsmith'\n```\n\nbugs.python.org fields:\n```python\nactivity = \u003cDate 2021-12-01.01:47:31.769\u003e\nactor = 'eric.smith'\nassignee = 'terry.reedy'\nclosed = True\nclosed_date = \u003cDate 2021-12-01.01:47:31.771\u003e\ncloser = 'eric.smith'\ncomponents = ['Documentation']\ncreation = \u003cDate 2010-02-17.23:54:17.722\u003e\ncreator = 'eric.smith'\ndependencies = []\nfiles = ['17712', '17713', '17768', '29948']\nhgrepos = []\nissue_num = 7951\nkeywords = ['patch', 'easy']\nmessage_count = 33.0\nmessages = ['99482', '99553', '107766', '107776', '107781', '107792', '107793', '107801', '107811', '107845', '108132', '108133', '108143', '108144', '108472', '108617', '113447', '113620', '113624', '115981', '116244', '187404', '190102', '215958', '216038', '225505', '266481', '340877', '340884', '347795', '407301', '407328', '407422']\nnosy_count = 14.0\nnosy_names = ['rhettinger', 'terry.reedy', 'mark.dickinson', 'eric.smith', 'kisielk', 'eric.araujo', 'mrabarnett', 'flox', 'docs@python', 'gosella', 'Todd.Rovito', 'marco.buttu', 'Ilya Kamenshchikov', 'iritkatriel']\npr_nums = []\npriority = 'normal'\nresolution = 'wont fix'\nstage = 'resolved'\nstatus = 'closed'\nsuperseder = None\ntype = 'enhancement'\nurl = 'https://bugs.python.org/issue7951'\nversions = ['Python 3.11']\n```\n\n\u003c/p\u003e\u003c/details\u003e\n","author":{"url":"https://github.com/ericvsmith","@type":"Person","name":"ericvsmith"},"datePublished":"2010-02-17T23:54:18.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":33},"url":"https://github.com/52199/cpython/issues/52199"}