[3.15] gh-152415: Exercise curses non-ASCII tests under 8-bit locale encodings (GH-152416)#152453
Merged
serhiy-storchaka merged 1 commit intoJun 27, 2026
Merged
Conversation
…ocale encodings (pythonGH-152416) The non-ASCII tests only exercised what the runner's locale could encode (in practice UTF-8). Add 8-bit-encoding cases to the character and string I/O tests, each guarded by the existing encodability check: ASCII, a character common to the Latin encodings ('é'), and ones distinctive to a single encoding (byte 0xA4 is '¤' in ISO-8859-1, '€' in ISO-8859-15, 'є' in KOI8-U). Run the whole suite under different locales to cover them; unrepresentable cases skip. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * pythongh-152415: Verify character output round-trips in test_output_character Read each written character back with in_wch() or instr() rather than inch(), which on a wide build returns the low byte of the code point instead of the locale-encoded byte and so mangles a non-ASCII character of an 8-bit locale. This lets the int-argument cases cover '€'/'є', and adds matching coverage for the str argument. insch() with an int byte > 127 is checked only for Latin-1: on a wide build ncurses winsch stores a printable byte directly as a code point instead of decoding it through the locale. (cherry picked from commit 003d362) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com> Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
serhiy-storchaka
added
needs backport to 3.13
|
Thanks @serhiy-storchaka for the PR 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14. |
|
GH-152456 is a backport of this pull request to the 3.14 branch. |
|
GH-152457 is a backport of this pull request to the 3.13 branch. |
serhiy-storchaka
added a commit
that referenced
this pull request
Jun 27, 2026
…encodings (GH-152416) (GH-152453) (GH-152457) The non-ASCII tests only exercised what the runner's locale could encode (in practice UTF-8). Add 8-bit-encoding cases to the character and string I/O tests, each guarded by the existing encodability check: ASCII, a character common to the Latin encodings ('é'), and ones distinctive to a single encoding (byte 0xA4 is '¤' in ISO-8859-1, '€' in ISO-8859-15, 'є' in KOI8-U). Run the whole suite under different locales to cover them; unrepresentable cases skip. * gh-152415: Verify character output round-trips in test_output_character Read each written character back with in_wch() or instr() rather than inch(), which on a wide build returns the low byte of the code point instead of the locale-encoded byte and so mangles a non-ASCII character of an 8-bit locale. This lets the int-argument cases cover '€'/'є', and adds matching coverage for the str argument. insch() with an int byte > 127 is checked only for Latin-1: on a wide build ncurses winsch stores a printable byte directly as a code point instead of decoding it through the locale. (cherry picked from commit 003d362) (cherry picked from commit a75aa41) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com> Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
serhiy-storchaka
added a commit
that referenced
this pull request
Jun 27, 2026
…encodings (GH-152416) (GH-152453) (GH-152456) The non-ASCII tests only exercised what the runner's locale could encode (in practice UTF-8). Add 8-bit-encoding cases to the character and string I/O tests, each guarded by the existing encodability check: ASCII, a character common to the Latin encodings ('é'), and ones distinctive to a single encoding (byte 0xA4 is '¤' in ISO-8859-1, '€' in ISO-8859-15, 'є' in KOI8-U). Run the whole suite under different locales to cover them; unrepresentable cases skip. * gh-152415: Verify character output round-trips in test_output_character Read each written character back with in_wch() or instr() rather than inch(), which on a wide build returns the low byte of the code point instead of the locale-encoded byte and so mangles a non-ASCII character of an 8-bit locale. This lets the int-argument cases cover '€'/'є', and adds matching coverage for the str argument. insch() with an int byte > 127 is checked only for Latin-1: on a wide build ncurses winsch stores a printable byte directly as a code point instead of decoding it through the locale. (cherry picked from commit 003d362) (cherry picked from commit a75aa41) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com> Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
The non-ASCII tests only exercised what the runner's locale could encode (in practice UTF-8). Add 8-bit-encoding cases to the character and string I/O tests, each guarded by the existing encodability check: ASCII, a character common to the Latin encodings ('é'), and ones distinctive to a single encoding (byte 0xA4 is '¤' in ISO-8859-1, '€' in ISO-8859-15, 'є' in KOI8-U). Run the whole suite under different locales to cover them; unrepresentable cases skip.
Read each written character back with in_wch() or instr() rather than inch(), which on a wide build returns the low byte of the code point instead of the locale-encoded byte and so mangles a non-ASCII character of an 8-bit locale. This lets the int-argument cases cover '€'/'є', and adds matching coverage for the str argument.
insch() with an int byte > 127 is checked only for Latin-1: on a wide build ncurses winsch stores a printable byte directly as a code point instead of decoding it through the locale.
(cherry picked from commit 003d362)