commit 35035bc35a9cb8617ab9fe9aac38aaf67c926aef
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Sat Jul 31 18:31:44 2021 -0700
committer GitHub <noreply@github.com> Sat Jul 31 18:31:44 2021 -0700
tree 2e38ea548c1baa345afb23550f658f05f54f8b24
parent 76903ff9ce2d28f542c44ba97aa043dde8b55daa

bpo-34013: Don't consider a grouped expression when reporting legacy print syntax errors (GH-27521)

(cherry picked from commit 208a7e957b812ad3b3733791845447677a704f3e)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>

Parser/parser.c

diff --git a/Parser/parser.c b/Parser/parser.c
index cda5c63..c4a4eb6 100644
--- a/Parser/parser.c
+++ b/Parser/parser.c
@@ -18180,7 +18180,7 @@ expression_without_invalid_rule(Parser *p)
     return _res;
 }
 
-// invalid_legacy_expression: NAME star_expressions
+// invalid_legacy_expression: NAME !'(' star_expressions
 static void *
 invalid_legacy_expression_rule(Parser *p)
 {
@@ -18191,21 +18191,23 @@ invalid_legacy_expression_rule(Parser *p)
     }
     void * _res = NULL;
     int _mark = p->mark;
-    { // NAME star_expressions
+    { // NAME !'(' star_expressions
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> invalid_legacy_expression[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "NAME star_expressions"));
+        D(fprintf(stderr, "%*c> invalid_legacy_expression[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "NAME !'(' star_expressions"));
         expr_ty a;
         expr_ty b;
         if (
             (a = _PyPegen_name_token(p))  // NAME
             &&
+            _PyPegen_lookahead_with_int(0, _PyPegen_expect_token, p, 7)  // token='('
+            &&
             (b = star_expressions_rule(p))  // star_expressions
         )
         {
-            D(fprintf(stderr, "%*c+ invalid_legacy_expression[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "NAME star_expressions"));
+            D(fprintf(stderr, "%*c+ invalid_legacy_expression[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "NAME !'(' star_expressions"));
             _res = _PyPegen_check_legacy_stmt ( p , a ) ? RAISE_SYNTAX_ERROR_KNOWN_RANGE ( a , b , "Missing parentheses in call to '%U'. Did you mean %U(...)?" , a -> v . Name . id , a -> v . Name . id ) : NULL;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -18216,7 +18218,7 @@ invalid_legacy_expression_rule(Parser *p)
         }
         p->mark = _mark;
         D(fprintf(stderr, "%*c%s invalid_legacy_expression[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "NAME star_expressions"));
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "NAME !'(' star_expressions"));
     }
     _res = NULL;
   done: