https://github.com/python/cpython/commit/54f620cc7fb8aa75e5526589322a6580c6446a22 commit: 54f620cc7fb8aa75e5526589322a6580c6446a22 branch: 3.13 author: Miss Islington (bot) <[email protected]> committer: gpshead <[email protected]> date: 2025-11-12T00:10:07Z summary:
[3.13] gh-138775: fix handle `python -m base64` stdin correct with EOF signal (GH-138776) (#141433) gh-138775: fix handle `python -m base64` stdin correct with EOF signal (GH-138776) * fix: handle stdin correct with EOF single. * fix: flollow the comments when pipe stdin use buffer * Apply suggestions from code review * fix: apply review comments in Lib/base64.py * fix: address comments * Reword comment and NEWS entry. --------- (cherry picked from commit f5c2a41f9a6b3be95c5be9dbae0a4a3342d356dc) Signed-off-by: yihong0618 <[email protected]> Co-authored-by: yihong <[email protected]> Co-authored-by: Bénédikt Tran <[email protected]> Co-authored-by: Peter Bierma <[email protected]> Co-authored-by: Gregory P. Smith <[email protected]> files: A Misc/NEWS.d/next/Library/2025-09-11-15-03-37.gh-issue-138775.w7rnSx.rst M Lib/base64.py diff --git a/Lib/base64.py b/Lib/base64.py index e8bc252ecfa638..6636e06382f4de 100755 --- a/Lib/base64.py +++ b/Lib/base64.py @@ -607,7 +607,14 @@ def main(): with open(args[0], 'rb') as f: func(f, sys.stdout.buffer) else: - func(sys.stdin.buffer, sys.stdout.buffer) + if sys.stdin.isatty(): + # gh-138775: read terminal input data all at once to detect EOF + import io + data = sys.stdin.buffer.read() + buffer = io.BytesIO(data) + else: + buffer = sys.stdin.buffer + func(buffer, sys.stdout.buffer) if __name__ == '__main__': diff --git a/Misc/NEWS.d/next/Library/2025-09-11-15-03-37.gh-issue-138775.w7rnSx.rst b/Misc/NEWS.d/next/Library/2025-09-11-15-03-37.gh-issue-138775.w7rnSx.rst new file mode 100644 index 00000000000000..455c1a9925a5e1 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2025-09-11-15-03-37.gh-issue-138775.w7rnSx.rst @@ -0,0 +1,2 @@ +Use of ``python -m`` with :mod:`base64` has been fixed to detect input from a +terminal so that it properly notices EOF. _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3//lists/python-checkins.python.org Member address: [email protected]
