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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"The new parser segfaults when parsing invalid input","articleBody":"BPO | [40661](https://bugs.python.org/issue40661)\n--- | :---\nNosy | @gvanrossum, @vstinner, @lysnikolaou, @Zac-HD, @pablogsal\nPRs | \u003cli\u003epython/cpython#20159\u003c/li\u003e\u003cli\u003epython/cpython#20165\u003c/li\u003e\nFiles | \u003cli\u003e[reproducer.py](https://bugs.python.org/file49169/reproducer.py \"Uploaded as text/plain at 2020-05-17.16:01:10 by @pablogsal\")\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 = \u003cDate 2020-05-18.17:32:26.774\u003e\ncreated_at = \u003cDate 2020-05-17.16:01:10.114\u003e\nlabels = ['interpreter-core', 'deferred-blocker', '3.9', 'type-crash']\ntitle = 'The new parser segfaults when parsing invalid input'\nupdated_at = \u003cDate 2020-05-18.17:32:26.773\u003e\nuser = 'https://github.com/pablogsal'\n```\n\nbugs.python.org fields:\n```python\nactivity = \u003cDate 2020-05-18.17:32:26.773\u003e\nactor = 'pablogsal'\nassignee = 'none'\nclosed = True\nclosed_date = \u003cDate 2020-05-18.17:32:26.774\u003e\ncloser = 'pablogsal'\ncomponents = ['Interpreter Core']\ncreation = \u003cDate 2020-05-17.16:01:10.114\u003e\ncreator = 'pablogsal'\ndependencies = []\nfiles = ['49169']\nhgrepos = []\nissue_num = 40661\nkeywords = ['patch']\nmessage_count = 13.0\nmessages = ['369132', '369133', '369134', '369136', '369142', '369144', '369164', '369176', '369181', '369235', '369249', '369263', '369280']\nnosy_count = 5.0\nnosy_names = ['gvanrossum', 'vstinner', 'lys.nikolaou', 'Zac Hatfield-Dodds', 'pablogsal']\npr_nums = ['20159', '20165']\npriority = 'deferred blocker'\nresolution = 'fixed'\nstage = 'resolved'\nstatus = 'closed'\nsuperseder = None\ntype = 'crash'\nurl = 'https://bugs.python.org/issue40661'\nversions = ['Python 3.9']\n```\n\n\u003c/p\u003e\u003c/details\u003e\n","author":{"url":"https://github.com/pablogsal","@type":"Person","name":"pablogsal"},"datePublished":"2020-05-17T16:01:10.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":13},"url":"https://github.com/84838/cpython/issues/84838"}