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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[subinterpreters] Make free lists and unicode caches per-interpreter","articleBody":"BPO | [40521](https://bugs.python.org/issue40521)\n--- | :---\nNosy | @rhettinger, @mdickinson, @vstinner, @markshannon, @corona10, @shihai1991, @JunyiXie\nPRs | \u003cli\u003epython/cpython#19933\u003c/li\u003e\u003cli\u003epython/cpython#19937\u003c/li\u003e\u003cli\u003epython/cpython#19959\u003c/li\u003e\u003cli\u003epython/cpython#19960\u003c/li\u003e\u003cli\u003epython/cpython#20081\u003c/li\u003e\u003cli\u003epython/cpython#20082\u003c/li\u003e\u003cli\u003epython/cpython#20085\u003c/li\u003e\u003cli\u003epython/cpython#20246\u003c/li\u003e\u003cli\u003epython/cpython#20247\u003c/li\u003e\u003cli\u003epython/cpython#20636\u003c/li\u003e\u003cli\u003epython/cpython#20637\u003c/li\u003e\u003cli\u003epython/cpython#20638\u003c/li\u003e\u003cli\u003epython/cpython#20642\u003c/li\u003e\u003cli\u003epython/cpython#20643\u003c/li\u003e\u003cli\u003epython/cpython#20644\u003c/li\u003e\u003cli\u003epython/cpython#20645\u003c/li\u003e\u003cli\u003epython/cpython#21068\u003c/li\u003e\u003cli\u003epython/cpython#21073\u003c/li\u003e\u003cli\u003epython/cpython#21074\u003c/li\u003e\u003cli\u003epython/cpython#21082\u003c/li\u003e\u003cli\u003epython/cpython#21085\u003c/li\u003e\u003cli\u003epython/cpython#21086\u003c/li\u003e\u003cli\u003epython/cpython#21096\u003c/li\u003e\u003cli\u003epython/cpython#21099\u003c/li\u003e\u003cli\u003epython/cpython#21101\u003c/li\u003e\u003cli\u003epython/cpython#21103\u003c/li\u003e\u003cli\u003epython/cpython#21116\u003c/li\u003e\u003cli\u003epython/cpython#21142\u003c/li\u003e\u003cli\u003epython/cpython#21265\u003c/li\u003e\u003cli\u003epython/cpython#22376\u003c/li\u003e\u003cli\u003epython/cpython#24821\u003c/li\u003e\u003cli\u003epython/cpython#24944\u003c/li\u003e\u003cli\u003epython/cpython#24964\u003c/li\u003e\u003cli\u003epython/cpython#25906\u003c/li\u003e\u003cli\u003epython/cpython#30422\u003c/li\u003e\u003cli\u003epython/cpython#30425\u003c/li\u003e\u003cli\u003epython/cpython#30433\u003c/li\u003e\nFiles | \u003cli\u003e[bench_tuple.patch](https://bugs.python.org/file49212/bench_tuple.patch \"Uploaded as text/plain at 2020-06-02.23:20:17 by @vstinner\")\u003c/li\u003e\u003cli\u003e[microbench_tuple.py](https://bugs.python.org/file49213/microbench_tuple.py \"Uploaded as text/plain at 2020-06-02.23:20:25 by @vstinner\")\u003c/li\u003e\u003cli\u003e[bench_dict.patch](https://bugs.python.org/file49216/bench_dict.patch \"Uploaded as text/plain at 2020-06-05.09:50:14 by @vstinner\")\u003c/li\u003e\u003cli\u003e[interned_bug.py](https://bugs.python.org/file49699/interned_bug.py \"Uploaded as text/plain at 2020-12-26.22:09:06 by @vstinner\")\u003c/li\u003e\u003cli\u003e[bench_dtoa.py](https://bugs.python.org/file49899/bench_dtoa.py \"Uploaded as text/plain at 2021-03-22.10:02:14 by @vstinner\")\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 2020-05-05.15:48:02.489\u003e\nlabels = ['expert-subinterpreters', '3.10']\ntitle = '[subinterpreters] Make free lists and unicode caches per-interpreter'\nupdated_at = \u003cDate 2022-01-06.15:24:07.868\u003e\nuser = 'https://github.com/vstinner'\n```\n\nbugs.python.org fields:\n```python\nactivity = \u003cDate 2022-01-06.15:24:07.868\u003e\nactor = 'vstinner'\nassignee = 'none'\nclosed = False\nclosed_date = None\ncloser = None\ncomponents = ['Subinterpreters']\ncreation = \u003cDate 2020-05-05.15:48:02.489\u003e\ncreator = 'vstinner'\ndependencies = []\nfiles = ['49212', '49213', '49216', '49699', '49899']\nhgrepos = []\nissue_num = 40521\nkeywords = ['patch']\nmessage_count = 56.0\nmessages = ['368175', '368177', '368187', '368278', '368283', '368807', '368808', '369407', '370636', '370733', '370734', '370735', '370737', '370740', '370741', '370742', '370754', '370755', '370756', '370757', '370771', '370928', '370969', '372146', '372148', '372161', '372168', '372169', '372176', '372181', '372207', '372209', '372216', '372220', '372223', '372250', '372357', '372795', '377368', '383789', '383790', '383829', '385950', '388492', '388493', '388617', '389226', '389294', '389305', '389525', '389527', '393787', '395860', '409819', '409856', '409862']\nnosy_count = 7.0\nnosy_names = ['rhettinger', 'mark.dickinson', 'vstinner', 'Mark.Shannon', 'corona10', 'shihai1991', 'JunyiXie']\npr_nums = ['19933', '19937', '19959', '19960', '20081', '20082', '20085', '20246', '20247', '20636', '20637', '20638', '20642', '20643', '20644', '20645', '21068', '21073', '21074', '21082', '21085', '21086', '21096', '21099', '21101', '21103', '21116', '21142', '21265', '22376', '24821', '24944', '24964', '25906', '30422', '30425', '30433']\npriority = 'normal'\nresolution = None\nstage = 'patch review'\nstatus = 'open'\nsuperseder = None\ntype = None\nurl = 'https://bugs.python.org/issue40521'\nversions = ['Python 3.10']\n```\n\n\u003c/p\u003e\u003c/details\u003e\n","author":{"url":"https://github.com/vstinner","@type":"Person","name":"vstinner"},"datePublished":"2020-05-05T15:48:02.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":57},"url":"https://github.com/84701/cpython/issues/84701"}