René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Incremental GC does not collect garbage as soon as expected","articleBody":"# Bug report\n\n### Bug description:\n\nThis was found by @Yhg1s .  If you run tests with this command:\n```\n./python -m test --randseed=3169227856 --no-randomize --single-process test_pyclbr test_trace test_pdb test_iter test_ordered_dict test_urllib2_localnet test_array test_generated_cases test_typing test_fnmatch test_tools test_descr test___all__ test_xml_dom_xmlbuilder test_nturl2path test_hmac test_pickle test_android test_ipaddress test_modulefinder test_interpreters test_zoneinfo test_runpy test_sqlite3 test_bdb test_zipfile test_crossinterp test_pulldom test_pkgutil test_re test_dbm_sqlite3 test_venv test_pyrepl test_xml_etree_c test_gc\n```\n\nThe `test_gc` unit test fails with:\n```test test_gc failed -- Traceback (most recent call last):\n  File \"/home/thomas/python/python/main/Lib/contextlib.py\", line 85, in inner\n    return func(*args, **kwds)\n  File \"/home/thomas/python/python/main/Lib/test/test_gc.py\", line 1573, in test_bug1055820d\n    self.fail(\"gc didn't happen after 50000 iterations\")\n    ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\nAssertionError: gc didn't happen after 50000 iterations\n```\n\nReverting GH-140262 seems to fix this. It is possible this is related to GH-141890 as well.\n\n### CPython versions tested on:\n\nCPython main branch\n\n### Operating systems tested on:\n\nLinux\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-142001\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/nascheme","@type":"Person","name":"nascheme"},"datePublished":"2025-11-27T05:05:41.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/142002/cpython/issues/142002"}