Issue #12705: Raise SyntaxError when compiling multiple statements as single interactive statement
diff --git a/Parser/parsetok.c b/Parser/parsetok.c
index f22ac67..9b2d730 100644
--- a/Parser/parsetok.c
+++ b/Parser/parsetok.c
@@ -224,6 +224,23 @@
if (err_ret->error == E_DONE) {
n = ps->p_tree;
ps->p_tree = NULL;
+
+ /* Check that the source for a single input statement really
+ is a single statement by looking at what is left in the
+ buffer after parsing. Trailing whitespace and comments
+ are OK. */
+ if (start == single_input) {
+ char *cur = tok->cur;
+ char c = *tok->cur;
+
+ while (c == ' ' || c == '\t' || c == '\n' || c == '\014')
+ c = *++cur;
+
+ if (c && c != '#') {
+ err_ret->error = E_BADSINGLE;
+ n = NULL;
+ }
+ }
}
else
n = NULL;