https://github.com/python/cpython/commit/fb9e292919d82326acea456aa071c9af6aff5626 commit: fb9e292919d82326acea456aa071c9af6aff5626 branch: main author: Dylan <[email protected]> committer: lysnikolaou <[email protected]> date: 2025-06-26T15:02:50+02:00 summary:
gh-129958: New syntax error in format spec applies to both f-strings and t-strings (#135570) Co-authored-by: Tomas R. <[email protected]> Co-authored-by: Lysandros Nikolaou <[email protected]> files: A Misc/NEWS.d/next/Core_and_Builtins/2025-06-24-06-41-47.gh-issue-129958.EaJuS0.rst M Lib/test/test_tstring.py M Parser/lexer/lexer.c diff --git a/Lib/test/test_tstring.py b/Lib/test/test_tstring.py index e72a1ea54176d5..aabae38556735b 100644 --- a/Lib/test/test_tstring.py +++ b/Lib/test/test_tstring.py @@ -219,6 +219,7 @@ def test_syntax_errors(self): ("t'{lambda:1}'", "t-string: lambda expressions are not allowed " "without parentheses"), ("t'{x:{;}}'", "t-string: expecting a valid expression after '{'"), + ("t'{1:d\n}'", "t-string: newlines are not allowed in format specifiers") ): with self.subTest(case), self.assertRaisesRegex(SyntaxError, err): eval(case) diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2025-06-24-06-41-47.gh-issue-129958.EaJuS0.rst b/Misc/NEWS.d/next/Core_and_Builtins/2025-06-24-06-41-47.gh-issue-129958.EaJuS0.rst new file mode 100644 index 00000000000000..70b3e99425df14 --- /dev/null +++ b/Misc/NEWS.d/next/Core_and_Builtins/2025-06-24-06-41-47.gh-issue-129958.EaJuS0.rst @@ -0,0 +1,2 @@ +Differentiate between t-strings and f-strings in syntax error for newlines +in format specifiers of single-quoted interpolated strings. diff --git a/Parser/lexer/lexer.c b/Parser/lexer/lexer.c index 4d10bccf0a53f2..0a078dd594148c 100644 --- a/Parser/lexer/lexer.c +++ b/Parser/lexer/lexer.c @@ -1421,7 +1421,8 @@ tok_get_fstring_mode(struct tok_state *tok, tokenizer_mode* current_tok, struct return MAKE_TOKEN( _PyTokenizer_syntaxerror( tok, - "f-string: newlines are not allowed in format specifiers for single quoted f-strings" + "%c-string: newlines are not allowed in format specifiers for single quoted %c-strings", + TOK_GET_STRING_PREFIX(tok), TOK_GET_STRING_PREFIX(tok) ) ); } _______________________________________________ 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]
