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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"input() is blocking exceptions at some phase during execution","articleBody":"# Bug report\n\n### Bug description:\n\nThe following loop will soon stuck at some value, due to some phase of built-in input() itself is blocking exceptions and will not pass the exception to upper scope until an ENTER is hit on keyboard.\n```python\nimport os, signal, threading\n\ncnt = [0]\n\ndef interrupter(cnt):\n\tlocal_cnt = 0\n\twhile 1:\n\t\tif local_cnt != cnt[0]:\n\t\t\tlocal_cnt = cnt[0]\n\t\t\tos.kill(os.getpid(), signal.SIGINT)\n\nthreading.Thread(target=interrupter, args=(cnt,), daemon=True).start()\n\nwhile 1:\n\tcnt[0] += 1\n\ttry:\n\t\tinput(\"\u003e\")\n\texcept KeyboardInterrupt:\n\t\tprint(cnt[0])\n```\n\n\n### CPython versions tested on:\n\n3.8\n\n### Operating systems tested on:\n\nmacOS","author":{"url":"https://github.com/wh-timme","@type":"Person","name":"wh-timme"},"datePublished":"2023-12-01T12:13:43.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/112585/cpython/issues/112585"}