Add quotes around the node type

Grammar/python.gram

@@ -647,7 +647,7 @@ invalid_assignment:
     | a=star_expressions augassign (yield_expr | star_expressions) {
         RAISE_SYNTAX_ERROR_KNOWN_LOCATION( 
             a, 
-            "%s is an illegal expression for augmented assignment",
+            "'%s' is an illegal expression for augmented assignment",
             _PyPegen_get_expr_name(a)
         )}
 

Lib/test/test_syntax.py

@@ -138,15 +138,15 @@
 
 >>> a, b += 1, 2
 Traceback (most recent call last):
-SyntaxError: tuple is an illegal expression for augmented assignment
+SyntaxError: 'tuple' is an illegal expression for augmented assignment
 
 >>> (a, b) += 1, 2
 Traceback (most recent call last):
-SyntaxError: tuple is an illegal expression for augmented assignment
+SyntaxError: 'tuple' is an illegal expression for augmented assignment
 
 >>> [a, b] += 1, 2
 Traceback (most recent call last):
-SyntaxError: list is an illegal expression for augmented assignment
+SyntaxError: 'list' is an illegal expression for augmented assignment
 
 From compiler_complex_args():
 
@@ -353,16 +353,16 @@
 
 >>> (x for x in x) += 1
 Traceback (most recent call last):
-SyntaxError: generator expression is an illegal expression for augmented assignment
+SyntaxError: 'generator expression' is an illegal expression for augmented assignment
 >>> None += 1
 Traceback (most recent call last):
-SyntaxError: None is an illegal expression for augmented assignment
+SyntaxError: 'None' is an illegal expression for augmented assignment
 >>> __debug__ += 1
 Traceback (most recent call last):
 SyntaxError: cannot assign to __debug__
 >>> f() += 1
 Traceback (most recent call last):
-SyntaxError: function call is an illegal expression for augmented assignment
+SyntaxError: 'function call' is an illegal expression for augmented assignment
 
 
 Test continue in finally in weird combinations.

Parser/pegen/parse.c

@@ -10875,7 +10875,7 @@ invalid_assignment_rule(Parser *p)
             (_tmp_129_var = _tmp_129_rule(p))  // yield_expr | star_expressions
         )
         {
-            _res = RAISE_SYNTAX_ERROR_KNOWN_LOCATION ( a , "%s is an illegal expression for augmented assignment" , _PyPegen_get_expr_name ( a ) );
+            _res = RAISE_SYNTAX_ERROR_KNOWN_LOCATION ( a , "'%s' is an illegal expression for augmented assignment" , _PyPegen_get_expr_name ( a ) );
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
                 return NULL;

Python/ast.c

@@ -3173,7 +3173,7 @@ ast_for_expr_stmt(struct compiling *c, const node *n)
             case Subscript_kind:
                 break;
             default:
-                ast_error(c, ch, "%s is an illegal expression for augmented assignment",
+                ast_error(c, ch, "'%s' is an illegal expression for augmented assignment",
                           get_expr_name(expr1));
                 return NULL;
         }