René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"PyREPL: Different Completion Behavior with GNU Readline","articleBody":"# Bug report\n\n### Bug description:\n\nThe current completion logic in `Lib/_pyrepl/completing_reader.py` uses a suffix-insertion strategy ([source code](https://github.com/python/cpython/blob/main/Lib/_pyrepl/completing_reader.py#L184)):\n\nIn the contrast, Readline completely replaces user input with the candidate ([source code](https://cgit.git.savannah.gnu.org/cgit/readline.git/tree/complete.c#n1906)).\n\nThis will lead to unwanted behavior in case-insensitive completion scenario. If user input 'xy', they might get 'xyZZY' instead of the expected 'XYZZY'.\n\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-145393\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/tanloong","@type":"Person","name":"tanloong"},"datePublished":"2026-03-01T15:20:55.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/145392/cpython/issues/145392"}