https://github.com/python/cpython/commit/5a7c9c6861009d3b2e4b566c01f2fb2e14b48514 commit: 5a7c9c6861009d3b2e4b566c01f2fb2e14b48514 branch: main author: Cody Maloney <[email protected]> committer: vstinner <[email protected]> date: 2025-11-28T17:47:14Z summary:
gh-141968: Use take_bytes in encodings.punycode (#141974) Removes a copy going from bytearray to bytes. Co-authored-by: Victor Stinner <[email protected]> Co-authored-by: Bénédikt Tran <[email protected]> files: A Misc/NEWS.d/next/Library/2025-11-25-23-29-08.gh-issue-141968.0JnjXf.rst M Lib/encodings/punycode.py diff --git a/Lib/encodings/punycode.py b/Lib/encodings/punycode.py index 4622fc8c9206f3..268fccbd53974e 100644 --- a/Lib/encodings/punycode.py +++ b/Lib/encodings/punycode.py @@ -17,7 +17,7 @@ def segregate(str): else: extended.add(c) extended = sorted(extended) - return bytes(base), extended + return base.take_bytes(), extended def selective_len(str, max): """Return the length of str, considering only characters below max.""" @@ -83,7 +83,7 @@ def generate_generalized_integer(N, bias): t = T(j, bias) if N < t: result.append(digits[N]) - return bytes(result) + return result.take_bytes() result.append(digits[t + ((N - t) % (36 - t))]) N = (N - t) // (36 - t) j += 1 @@ -112,7 +112,7 @@ def generate_integers(baselen, deltas): s = generate_generalized_integer(delta, bias) result.extend(s) bias = adapt(delta, points==0, baselen+points+1) - return bytes(result) + return result.take_bytes() def punycode_encode(text): base, extended = segregate(text) diff --git a/Misc/NEWS.d/next/Library/2025-11-25-23-29-08.gh-issue-141968.0JnjXf.rst b/Misc/NEWS.d/next/Library/2025-11-25-23-29-08.gh-issue-141968.0JnjXf.rst new file mode 100644 index 00000000000000..0cefeed30ed8a9 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2025-11-25-23-29-08.gh-issue-141968.0JnjXf.rst @@ -0,0 +1,2 @@ +Remove data copy from :mod:`codecs` ``punycode`` encoding by using +:meth:`bytearray.take_bytes`. _______________________________________________ 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]
