[3.9] bpo-38964: Print correct filename on a SyntaxError in an fstring (GH-20399) (GH-20404)
When a `SyntaxError` in the expression part of a fstring is found,
the filename attribute of the `SyntaxError` is always `<fstring>`.
With this commit, it gets changed to always have the name of the file
the fstring resides in.
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>.
(cherry picked from commit f7b1e461567e5e3fa3ba46f589d9edc1b45b2dd0)
diff --git a/Parser/pegen/parse_string.c b/Parser/pegen/parse_string.c
index ca4b733..a0ec698 100644
--- a/Parser/pegen/parse_string.c
+++ b/Parser/pegen/parse_string.c
@@ -606,11 +606,8 @@
if (tok == NULL) {
return NULL;
}
- tok->filename = PyUnicode_FromString("<fstring>");
- if (!tok->filename) {
- PyTokenizer_Free(tok);
- return NULL;
- }
+ Py_INCREF(p->tok->filename);
+ tok->filename = p->tok->filename;
Parser *p2 = _PyPegen_Parser_New(tok, Py_fstring_input, p->flags, p->feature_version,
NULL, p->arena);