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fix: use unambiguous punction in 'invalid escape sequence' message (GH-26582)

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(cherry picked from commit ffd87b7093)

Co-authored-by: Ned Batchelder <ned@nedbatchelder.com>
This commit is contained in:
Miss Islington (bot) 2021-06-07 17:36:19 -07:00 • committed by GitHub
parent 8524e32d77
commit d80f4265db
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2 changed files with 3 additions and 3 deletions
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2
Lib/test/test_cmd_line_script.py
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@ -651,7 +651,7 @@ def test_syntaxerror_invalid_escape_sequence_multi_line(self):
stderr.splitlines()[-3:], stderr.splitlines()[-3:],
[ b' foo = """\\q"""', [ b' foo = """\\q"""',
b' ^^^^^^^^', b' ^^^^^^^^',
b'SyntaxError: invalid escape sequence \\q' b'SyntaxError: invalid escape sequence \'\\q\''
], ],
) )

4
Parser/string_parser.c
View file

@ -12,7 +12,7 @@ static int
warn_invalid_escape_sequence(Parser *p, unsigned char first_invalid_escape_char, Token *t) warn_invalid_escape_sequence(Parser *p, unsigned char first_invalid_escape_char, Token *t)
{ {
PyObject *msg = PyObject *msg =
PyUnicode_FromFormat("invalid escape sequence \\%c", first_invalid_escape_char); PyUnicode_FromFormat("invalid escape sequence '\\%c'", first_invalid_escape_char);
if (msg == NULL) { if (msg == NULL) {
return -1; return -1;
} }
@ -27,7 +27,7 @@ warn_invalid_escape_sequence(Parser *p, unsigned char first_invalid_escape_char,
since _PyPegen_raise_error uses p->tokens[p->fill - 1] for the since _PyPegen_raise_error uses p->tokens[p->fill - 1] for the
error location, if p->known_err_token is not set. */ error location, if p->known_err_token is not set. */
p->known_err_token = t; p->known_err_token = t;
RAISE_SYNTAX_ERROR("invalid escape sequence \\%c", first_invalid_escape_char); RAISE_SYNTAX_ERROR("invalid escape sequence '\\%c'", first_invalid_escape_char);
} }
Py_DECREF(msg); Py_DECREF(msg);
return -1; return -1;