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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Many tests fail if `FORCE_COLOR` environment variable is set","articleBody":"# Bug report\n\n### Bug description:\n\nIf you run `FORCE_COLOR=1 make test`, many tests fail. The failing tests are mostly due to tests which assert the contents of a traceback not expecting traceback to be colorised, but if you pass `FORCE_COLOR=1`, it seems like Python obediently colorises all traceback.\n\nThe full list of failing tests on my machine is:\n\n```\n20 tests failed:\n    test.test_inspect.test_inspect test_capi test_cmd_line\n    test_cmd_line_script test_compileall test_doctest test_eof\n    test_exceptions test_idle test_interpreters test_regrtest\n    test_repl test_runpy test_signal test_sys test_threading\n    test_traceback test_tracemalloc test_unicodedata test_warnings\n```\n\n`test_signal` and `test_ssl` seem to fail on my machine without `FORCE_COLOR` being set, however, so those are probably unrelated.\n\nAttached is the full output from running `./python.exe -E -m test_traceback -v` (which is too long to paste into this issue body directly).\n\n[test_traceback.txt](https://github.com/python/cpython/files/14897927/test_traceback.txt)\n\n### CPython versions tested on:\n\nCPython main branch\n\n### Operating systems tested on:\n\nmacOS","author":{"url":"https://github.com/AlexWaygood","@type":"Person","name":"AlexWaygood"},"datePublished":"2024-04-07T16:19:14.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/117605/cpython/issues/117605"}