René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Lib/inspect.py: Avoid wild replacement in formatannotation","articleBody":"\u003c!--\r\n  If you're new to Python and you're not sure whether what you're experiencing is a bug, the CPython issue tracker is not\r\n  the right place to seek help. Consider the following options instead:\r\n\r\n  - reading the Python tutorial: https://docs.python.org/3/tutorial/\r\n  - posting in the \"Users\" category on discuss.python.org: https://discuss.python.org/c/users/7\r\n  - emailing the Python-list mailing list: https://mail.python.org/mailman/listinfo/python-list\r\n  - searching our issue tracker (https://github.com/python/cpython/issues) to see if\r\n    your problem has already been reported\r\n--\u003e\r\n\r\n# Bug report\r\n\r\nSource: https://github.com/python/cpython/blob/91afe66707237558d808aeca4683d0822aa0511e/Lib/inspect.py#L1449-L1458\r\n\r\nAn error replacement happens in:\r\n\r\n```python\r\nrepr(annotation).replace('typing.', '')\r\n```\r\n\r\nSuppose that I define a class or Protocol under `foo/typing.py`:\r\n\r\n```python\r\nclass A:\r\n    pass\r\n```\r\n\r\nThen `Union[int, A]` will turn to `Union[int, foo.A]`, but expected result is `Union[int, foo.typing.A]`\r\n\r\nAny module with suffix like `xxtyping` will be replaced, such as `nptyping`.\r\n\r\n# Solution\r\n\r\nReplace the line to:\r\n\r\n```python\r\n        def repl(match):\r\n            text = match.group()\r\n            if text.startswith('typing.'):\r\n                    return text[len('typing.'):]\r\n            return text\r\n        return re.sub(r'[\\w\\.]+', repl, repr(annotation))\r\n```\r\n\r\n","author":{"url":"https://github.com/iyume","@type":"Person","name":"iyume"},"datePublished":"2022-08-18T14:13:21.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/96073/cpython/issues/96073"}