René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"__lazy_import__ errors in test_xpickle","articleBody":"# Bug report\n\n### Bug description:\n\n```pytb\nERROR: test_builtin_functions (test.test_xpickle.CPicklePython314Compat.test_builtin_functions) (name='__lazy_import__', proto=1)\n----------------------------------------------------------------------\nTraceback (most recent call last):\n  File \"/Users/skip/src/python/cpython/Lib/test/pickletester.py\", line 3238, in test_builtin_functions\n    s = self.dumps(t, proto)\n  File \"/Users/skip/src/python/cpython/Lib/test/test_xpickle.py\", line 190, in dumps\n    return self.send_to_worker(python, data)\n           ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^\n  File \"/Users/skip/src/python/cpython/Lib/test/test_xpickle.py\", line 172, in send_to_worker\n    raise exception\nAttributeError: module 'builtins' has no attribute '__lazy_import__'\n```\n\n`test_xpickle` seems to be failing with the above traceback for every version it's tested with and for all protocols. I have a bunch of versions available, 2.7 and 3.7-3.14 in addition to main. The above traceback is from my Mac, but I get the same failure on my Linux laptop.\n\n### CPython versions tested on:\n\nCPython main branch\n\n### Operating systems tested on:\n\nLinux, macOS\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-144889\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/smontanaro","@type":"Person","name":"smontanaro"},"datePublished":"2026-02-16T15:00:44.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/144878/cpython/issues/144878"}