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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Implement support for validation of pattern matching ASTs","articleBody":"BPO | [43897](https://bugs.python.org/issue43897)\n--- | :---\nNosy | @ncoghlan, @pablogsal, @miss-islington, @brandtbucher, @isidentical\nPRs | \u003cli\u003epython/cpython#24771\u003c/li\u003e\u003cli\u003epython/cpython#27074\u003c/li\u003e\u003cli\u003epython/cpython#27432\u003c/li\u003e\u003cli\u003epython/cpython#27435\u003c/li\u003e\nDependencies | \u003cli\u003ebpo-43892: Make match patterns explicit in the AST\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/isidentical'\nclosed_at = \u003cDate 2021-07-29.01:03:10.257\u003e\ncreated_at = \u003cDate 2021-04-20.19:35:33.527\u003e\nlabels = ['3.10']\ntitle = 'Implement support for validation of pattern matching ASTs'\nupdated_at = \u003cDate 2021-07-29.01:03:10.257\u003e\nuser = 'https://github.com/isidentical'\n```\n\nbugs.python.org fields:\n```python\nactivity = \u003cDate 2021-07-29.01:03:10.257\u003e\nactor = 'brandtbucher'\nassignee = 'BTaskaya'\nclosed = True\nclosed_date = \u003cDate 2021-07-29.01:03:10.257\u003e\ncloser = 'brandtbucher'\ncomponents = []\ncreation = \u003cDate 2021-04-20.19:35:33.527\u003e\ncreator = 'BTaskaya'\ndependencies = ['43892']\nfiles = []\nhgrepos = []\nissue_num = 43897\nkeywords = ['patch']\nmessage_count = 5.0\nmessages = ['391469', '397231', '398402', '398446', '398447']\nnosy_count = 5.0\nnosy_names = ['ncoghlan', 'pablogsal', 'miss-islington', 'brandtbucher', 'BTaskaya']\npr_nums = ['24771', '27074', '27432', '27435']\npriority = 'critical'\nresolution = 'fixed'\nstage = 'resolved'\nstatus = 'closed'\nsuperseder = None\ntype = None\nurl = 'https://bugs.python.org/issue43897'\nversions = ['Python 3.10']\n```\n\n\u003c/p\u003e\u003c/details\u003e\n","author":{"url":"https://github.com/isidentical","@type":"Person","name":"isidentical"},"datePublished":"2021-04-20T19:35:34.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/88063/cpython/issues/88063"}