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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Concrete object C API considered harmful to subclasses of builtin types","articleBody":"BPO | [10977](https://bugs.python.org/issue10977)\n--- | :---\nNosy | @rhettinger, @ncoghlan, @pitrou, @scoder, @benjaminp, @merwok, @Trundle, @meadori, @durban, @ericsnowcurrently, @MojoVampire\nFiles | \u003cli\u003e[issue10977_list.patch](https://bugs.python.org/file21303/issue10977_list.patch \"Uploaded as text/plain at 2011-03-20.12:27:12 by @durban\"): Patch for list.\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 = None\nclosed_at = None\ncreated_at = \u003cDate 2011-01-21.23:49:24.089\u003e\nlabels = ['type-bug', 'docs']\ntitle = 'Concrete object C API considered harmful to subclasses of builtin types'\nupdated_at = \u003cDate 2015-05-13.21:37:51.271\u003e\nuser = 'https://github.com/rhettinger'\n```\n\nbugs.python.org fields:\n```python\nactivity = \u003cDate 2015-05-13.21:37:51.271\u003e\nactor = 'ppperry'\nassignee = 'docs@python'\nclosed = False\nclosed_date = None\ncloser = None\ncomponents = ['Documentation']\ncreation = \u003cDate 2011-01-21.23:49:24.089\u003e\ncreator = 'rhettinger'\ndependencies = []\nfiles = ['21303']\nhgrepos = []\nissue_num = 10977\nkeywords = ['patch']\nmessage_count = 31.0\nmessages = ['126800', '131489', '131494', '131537', '131538', '131550', '131551', '133026', '133027', '133032', '133126', '133130', '133132', '133137', '133138', '133139', '133141', '133176', '133191', '200741', '200752', '200804', '200837', '200842', '201205', '201247', '201248', '201249', '201250', '201256', '201260']\nnosy_count = 13.0\nnosy_names = ['rhettinger', 'ncoghlan', 'pitrou', 'scoder', 'benjamin.peterson', 'eric.araujo', 'Arfrever', 'Trundle', 'meador.inge', 'daniel.urban', 'docs@python', 'eric.snow', 'josh.r']\npr_nums = []\npriority = 'normal'\nresolution = None\nstage = None\nstatus = 'open'\nsuperseder = None\ntype = 'behavior'\nurl = 'https://bugs.python.org/issue10977'\nversions = ['Python 3.3']\n```\n\n\u003c/p\u003e\u003c/details\u003e\n","author":{"url":"https://github.com/rhettinger","@type":"Person","name":"rhettinger"},"datePublished":"2011-01-21T23:49:24.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":32},"url":"https://github.com/55186/cpython/issues/55186"}