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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"test_sys.test_intern() fails if run more than once in the same process","articleBody":"# Bug report\n\nExample:\n\n```\n$ ./python -m test test_sys test_sys -m test_intern -v\n(...)\n0:00:00 load avg: 1.60 Run tests sequentially\n0:00:00 load avg: 1.60 [1/2] test_sys\ntest_intern (test.test_sys.SysModuleTest.test_intern) ... ok\n\n----------------------------------------------------------------------\nRan 1 test in 0.001s\n\nOK\n0:00:00 load avg: 1.60 [2/2] test_sys\ntest_intern (test.test_sys.SysModuleTest.test_intern) ... FAIL\n\n======================================================================\nFAIL: test_intern (test.test_sys.SysModuleTest.test_intern)\n----------------------------------------------------------------------\nTraceback (most recent call last):\n  File \"/home/vstinner/python/3.12/Lib/test/test_sys.py\", line 687, in test_intern\n    self.assertTrue(sys.intern(s) is s)\nAssertionError: False is not true\n\n----------------------------------------------------------------------\n(...)\n\nResult: FAILURE\n```\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-109491\n* gh-110216\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/vstinner","@type":"Person","name":"vstinner"},"datePublished":"2023-09-05T20:56:57.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/108963/cpython/issues/108963"}