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[3.13] gh-137314: Fix incorrect treatment of format specs in raw fstrings (GH-137328) (#137345)

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gh-137314: Fix incorrect treatment of format specs in raw fstrings (GH-137328)
(cherry picked from commit 0153d82a5a)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
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Miss Islington (bot) 2025-08-03 18:58:49 +02:00 • committed by GitHub
parent 7adea430c1
commit 23a3e892ee
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5 changed files with 59 additions and 17 deletions
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11
Parser/action_helpers.c
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@ -1,6 +1,7 @@
#include <Python.h>
#include "pegen.h"
#include "lexer/state.h"
#include "string_parser.h"
#include "pycore_runtime.h" // _PyRuntime
#include "pycore_pystate.h" // _PyInterpreterState_GET()
@ -1369,7 +1370,15 @@ expr_ty _PyPegen_decoded_constant_from_token(Parser* p, Token* tok) {
if (PyBytes_AsStringAndSize(tok->bytes, &bstr, &bsize) == -1) {
return NULL;
}
PyObject* str = _PyPegen_decode_string(p, 0, bstr, bsize, tok);
// Check if we're inside a raw f-string for format spec decoding
int is_raw = 0;
if (INSIDE_FSTRING(p->tok)) {
tokenizer_mode *mode = TOK_GET_MODE(p->tok);
is_raw = mode->f_string_raw;
}
PyObject* str = _PyPegen_decode_string(p, is_raw, bstr, bsize, tok);
if (str == NULL) {
return NULL;
}