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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Fixing Copy on Writes from reference counting and immortal objects","articleBody":"BPO | [40255](https://bugs.python.org/issue40255)\n--- | :---\nNosy | @tim-one, @nascheme, @gpshead, @pitrou, @vstinner, @carljm, @DinoV, @methane, @markshannon, @ericsnowcurrently, @zooba, @corona10, @pablogsal, @eduardo-elizondo, @remilapeyre, @shihai1991\nPRs | \u003cli\u003epython/cpython#19474\u003c/li\u003e\u003cli\u003epython/cpython#24828\u003c/li\u003e\u003cli\u003epython/cpython#31488\u003c/li\u003e\u003cli\u003epython/cpython#31489\u003c/li\u003e\u003cli\u003epython/cpython#31490\u003c/li\u003e\u003cli\u003epython/cpython#31491\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 2020-04-11.15:40:21.809\u003e\nlabels = ['interpreter-core', 'type-feature', '3.10']\ntitle = 'Fixing Copy on Writes from reference counting and immortal objects'\nupdated_at = \u003cDate 2022-02-22.16:42:58.428\u003e\nuser = 'https://github.com/eduardo-elizondo'\n```\n\nbugs.python.org fields:\n```python\nactivity = \u003cDate 2022-02-22.16:42:58.428\u003e\nactor = 'eric.snow'\nassignee = 'none'\nclosed = False\nclosed_date = None\ncloser = None\ncomponents = ['Interpreter Core']\ncreation = \u003cDate 2020-04-11.15:40:21.809\u003e\ncreator = 'eelizondo'\ndependencies = []\nfiles = []\nhgrepos = []\nissue_num = 40255\nkeywords = ['patch']\nmessage_count = 69.0\nmessages = ['366216', '366221', '366224', '366325', '366326', '366328', '366329', '366330', '366331', '366341', '366344', '366345', '366387', '366388', '366390', '366402', '366403', '366404', '366406', '366407', '366408', '366412', '366413', '366416', '366422', '366423', '366428', '366456', '366518', '366519', '366520', '366536', '366561', '366565', '366566', '366573', '366577', '366578', '366579', '366593', '366605', '366623', '366624', '366625', '366628', '366629', '366744', '366818', '366825', '366826', '366828', '366834', '366835', '366837', '366852', '379644', '379871', '379917', '388525', '388526', '388760', '410592', '410613', '412956', '413080', '413116', '413693', '413694', '413717']\nnosy_count = 16.0\nnosy_names = ['tim.peters', 'nascheme', 'gregory.p.smith', 'pitrou', 'vstinner', 'carljm', 'dino.viehland', 'methane', 'Mark.Shannon', 'eric.snow', 'steve.dower', 'corona10', 'pablogsal', 'eelizondo', 'remi.lapeyre', 'shihai1991']\npr_nums = ['19474', '24828', '31488', '31489', '31490', '31491']\npriority = 'normal'\nresolution = None\nstage = 'patch review'\nstatus = 'open'\nsuperseder = None\ntype = 'enhancement'\nurl = 'https://bugs.python.org/issue40255'\nversions = ['Python 3.10']\n```\n\n\u003c/p\u003e\u003c/details\u003e\n\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-102887\n* gh-103308\n* gh-103403\n* gh-103817\n* gh-103823\n* gh-103962\n* gh-104054\n* gh-105195\n* gh-105977\n* gh-107605\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/eduardo-elizondo","@type":"Person","name":"eduardo-elizondo"},"datePublished":"2020-04-11T15:40:22.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":71},"url":"https://github.com/84436/cpython/issues/84436"}