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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Avoid calling isatty() for most open() calls","articleBody":"BPO | [45944](https://bugs.python.org/issue45944)\n--- | :---\nNosy | @pitrou, @benjaminp, @serhiy-storchaka, @eryksun, @collinanderson\nPRs | \u003cli\u003epython/cpython#29870\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 2021-12-01.05:08:15.763\u003e\nlabels = ['3.11', 'expert-IO', 'performance']\ntitle = 'Avoid calling isatty() for most open() calls'\nupdated_at = \u003cDate 2021-12-01.11:53:13.388\u003e\nuser = 'https://github.com/collinanderson'\n```\n\nbugs.python.org fields:\n```python\nactivity = \u003cDate 2021-12-01.11:53:13.388\u003e\nactor = 'eryksun'\nassignee = 'none'\nclosed = False\nclosed_date = None\ncloser = None\ncomponents = ['IO']\ncreation = \u003cDate 2021-12-01.05:08:15.763\u003e\ncreator = 'collinanderson'\ndependencies = []\nfiles = []\nhgrepos = []\nissue_num = 45944\nkeywords = ['patch']\nmessage_count = 3.0\nmessages = ['407427', '407434', '407444']\nnosy_count = 6.0\nnosy_names = ['pitrou', 'benjamin.peterson', 'stutzbach', 'serhiy.storchaka', 'eryksun', 'collinanderson']\npr_nums = ['29870']\npriority = 'normal'\nresolution = None\nstage = 'patch review'\nstatus = 'open'\nsuperseder = None\ntype = 'performance'\nurl = 'https://bugs.python.org/issue45944'\nversions = ['Python 3.11']\n```\n\n\u003c/p\u003e\u003c/details\u003e\n\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-112495\n* gh-124922\n* gh-125089\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/collinanderson","@type":"Person","name":"collinanderson"},"datePublished":"2021-12-01T05:08:16.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/90102/cpython/issues/90102"}