bpo-43017: Improve error message for unparenthesised tuples in comprehensions (GH24314)

5 files changed, 343 insertions, 251 deletions

diff --git a/Grammar/python.gram b/Grammar/python.gram
index 05ddce520fb..e72158be223 100644
--- a/Grammar/python.gram
+++ b/Grammar/python.gram
@@ -507,7 +507,7 @@ strings[expr_ty] (memo): a=STRING+ { _PyPegen_concatenate_strings(p, a) }
 list[expr_ty]:
     | '[' a=[star_named_expressions] ']' { _Py_List(a, Load, EXTRA) }
 listcomp[expr_ty]:
-    | '[' a=named_expression ~ b=for_if_clauses ']' { _Py_ListComp(a, b, EXTRA) }
+    | '[' a=named_expression b=for_if_clauses ']' { _Py_ListComp(a, b, EXTRA) }
     | invalid_comprehension
 tuple[expr_ty]:
     | '(' a=[y=star_named_expression ',' z=[star_named_expressions] { _PyPegen_seq_insert_in_front(p, y, z) } ] ')' {
@@ -516,11 +516,11 @@ group[expr_ty]:
     | '(' a=(yield_expr | named_expression) ')' { a }
     | invalid_group
 genexp[expr_ty]:
-    | '(' a=named_expression ~ b=for_if_clauses ')' { _Py_GeneratorExp(a, b, EXTRA) }
+    | '(' a=named_expression b=for_if_clauses ')' { _Py_GeneratorExp(a, b, EXTRA) }
     | invalid_comprehension
 set[expr_ty]: '{' a=star_named_expressions '}' { _Py_Set(a, EXTRA) }
 setcomp[expr_ty]:
-    | '{' a=named_expression ~ b=for_if_clauses '}' { _Py_SetComp(a, b, EXTRA) }
+    | '{' a=named_expression b=for_if_clauses '}' { _Py_SetComp(a, b, EXTRA) }
     | invalid_comprehension
 dict[expr_ty]:
     | '{' a=[double_starred_kvpairs] '}' {
@@ -692,6 +692,8 @@ invalid_primary:
 invalid_comprehension:
     | ('[' | '(' | '{') a=starred_expression for_if_clauses {
         RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "iterable unpacking cannot be used in comprehension") }
+    | ('[' | '{') a=star_named_expression ',' [star_named_expressions] {
+        RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "did you forget parentheses around the comprehension target?") }
 invalid_dict_comprehension:
     | '{' a='**' bitwise_or for_if_clauses '}' {
         RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "dict unpacking cannot be used in dict comprehension") }
diff --git a/Lib/test/test_named_expressions.py b/Lib/test/test_named_expressions.py
index 5908f121085..20ac2e699f0 100644
--- a/Lib/test/test_named_expressions.py
+++ b/Lib/test/test_named_expressions.py
@@ -101,7 +101,8 @@ class NamedExpressionInvalidTest(unittest.TestCase):
     def test_named_expression_invalid_17(self):
         code = "[i := 0, j := 1 for i, j in [(1, 2), (3, 4)]]"
 
-        with self.assertRaisesRegex(SyntaxError, "invalid syntax"):
+        with self.assertRaisesRegex(SyntaxError,
+                "did you forget parentheses around the comprehension target?"):
             exec(code, {}, {})
 
     def test_named_expression_invalid_in_class_body(self):
diff --git a/Lib/test/test_syntax.py b/Lib/test/test_syntax.py
index c8d191df4cc..604474f1e83 100644
--- a/Lib/test/test_syntax.py
+++ b/Lib/test/test_syntax.py
@@ -235,6 +235,21 @@ SyntaxError: invalid syntax
 Traceback (most recent call last):
 SyntaxError: invalid syntax
 
+Comprehensions creating tuples without parentheses
+should produce a specialized error message:
+
+>>> [x,y for x,y in range(100)]
+Traceback (most recent call last):
+SyntaxError: did you forget parentheses around the comprehension target?
+
+>>> {x,y for x,y in range(100)}
+Traceback (most recent call last):
+SyntaxError: did you forget parentheses around the comprehension target?
+
+>>> {x,y: None for x,y in range(100)}
+Traceback (most recent call last):
+SyntaxError: did you forget parentheses around the comprehension target?
+
 From compiler_complex_args():
 
 >>> def f(None=1):
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-01-24-18-02-05.bpo-43017.emEcXX.rst b/Misc/NEWS.d/next/Core and Builtins/2021-01-24-18-02-05.bpo-43017.emEcXX.rst
new file mode 100644
index 00000000000..a809f5cbb1d
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2021-01-24-18-02-05.bpo-43017.emEcXX.rst
@@ -0,0 +1,2 @@
+Improve error message in the parser when using un-parenthesised tuples in
+comprehensions. Patch by Pablo Galindo.
diff --git a/Parser/parser.c b/Parser/parser.c
index f7794e715b9..d333accf71c 100644
--- a/Parser/parser.c
+++ b/Parser/parser.c
@@ -362,11 +362,11 @@ static KeywordToken *reserved_keywords[] = {
 #define _loop0_129_type 1293
 #define _tmp_130_type 1294
 #define _tmp_131_type 1295
-#define _loop0_132_type 1296
-#define _loop1_133_type 1297
-#define _loop0_134_type 1298
-#define _loop1_135_type 1299
-#define _tmp_136_type 1300
+#define _tmp_132_type 1296
+#define _loop0_133_type 1297
+#define _loop1_134_type 1298
+#define _loop0_135_type 1299
+#define _loop1_136_type 1300
 #define _tmp_137_type 1301
 #define _tmp_138_type 1302
 #define _tmp_139_type 1303
@@ -385,6 +385,7 @@ static KeywordToken *reserved_keywords[] = {
 #define _tmp_152_type 1316
 #define _tmp_153_type 1317
 #define _tmp_154_type 1318
+#define _tmp_155_type 1319
 
 static mod_ty file_rule(Parser *p);
 static mod_ty interactive_rule(Parser *p);
@@ -682,11 +683,11 @@ static asdl_seq *_loop0_128_rule(Parser *p);
 static asdl_seq *_loop0_129_rule(Parser *p);
 static void *_tmp_130_rule(Parser *p);
 static void *_tmp_131_rule(Parser *p);
-static asdl_seq *_loop0_132_rule(Parser *p);
-static asdl_seq *_loop1_133_rule(Parser *p);
-static asdl_seq *_loop0_134_rule(Parser *p);
-static asdl_seq *_loop1_135_rule(Parser *p);
-static void *_tmp_136_rule(Parser *p);
+static void *_tmp_132_rule(Parser *p);
+static asdl_seq *_loop0_133_rule(Parser *p);
+static asdl_seq *_loop1_134_rule(Parser *p);
+static asdl_seq *_loop0_135_rule(Parser *p);
+static asdl_seq *_loop1_136_rule(Parser *p);
 static void *_tmp_137_rule(Parser *p);
 static void *_tmp_138_rule(Parser *p);
 static void *_tmp_139_rule(Parser *p);
@@ -705,6 +706,7 @@ static void *_tmp_151_rule(Parser *p);
 static void *_tmp_152_rule(Parser *p);
 static void *_tmp_153_rule(Parser *p);
 static void *_tmp_154_rule(Parser *p);
+static void *_tmp_155_rule(Parser *p);
 
 
 // file: statements? $
@@ -11089,7 +11091,7 @@ list_rule(Parser *p)
     return _res;
 }
 
-// listcomp: '[' named_expression ~ for_if_clauses ']' | invalid_comprehension
+// listcomp: '[' named_expression for_if_clauses ']' | invalid_comprehension
 static expr_ty
 listcomp_rule(Parser *p)
 {
@@ -11109,13 +11111,12 @@ listcomp_rule(Parser *p)
     UNUSED(_start_lineno); // Only used by EXTRA macro
     int _start_col_offset = p->tokens[_mark]->col_offset;
     UNUSED(_start_col_offset); // Only used by EXTRA macro
-    { // '[' named_expression ~ for_if_clauses ']'
+    { // '[' named_expression for_if_clauses ']'
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> listcomp[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'[' named_expression ~ for_if_clauses ']'"));
-        int _cut_var = 0;
+        D(fprintf(stderr, "%*c> listcomp[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'[' named_expression for_if_clauses ']'"));
         Token * _literal;
         Token * _literal_1;
         expr_ty a;
@@ -11125,14 +11126,12 @@ listcomp_rule(Parser *p)
             &&
             (a = named_expression_rule(p))  // named_expression
             &&
-            (_cut_var = 1)
-            &&
             (b = for_if_clauses_rule(p))  // for_if_clauses
             &&
             (_literal_1 = _PyPegen_expect_token(p, 10))  // token=']'
         )
         {
-            D(fprintf(stderr, "%*c+ listcomp[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'[' named_expression ~ for_if_clauses ']'"));
+            D(fprintf(stderr, "%*c+ listcomp[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'[' named_expression for_if_clauses ']'"));
             Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
             if (_token == NULL) {
                 D(p->level--);
@@ -11152,11 +11151,7 @@ listcomp_rule(Parser *p)
         }
         p->mark = _mark;
         D(fprintf(stderr, "%*c%s listcomp[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'[' named_expression ~ for_if_clauses ']'"));
-        if (_cut_var) {
-            D(p->level--);
-            return NULL;
-        }
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'[' named_expression for_if_clauses ']'"));
     }
     if (p->call_invalid_rules) { // invalid_comprehension
         if (p->error_indicator) {
@@ -11314,7 +11309,7 @@ group_rule(Parser *p)
     return _res;
 }
 
-// genexp: '(' named_expression ~ for_if_clauses ')' | invalid_comprehension
+// genexp: '(' named_expression for_if_clauses ')' | invalid_comprehension
 static expr_ty
 genexp_rule(Parser *p)
 {
@@ -11334,13 +11329,12 @@ genexp_rule(Parser *p)
     UNUSED(_start_lineno); // Only used by EXTRA macro
     int _start_col_offset = p->tokens[_mark]->col_offset;
     UNUSED(_start_col_offset); // Only used by EXTRA macro
-    { // '(' named_expression ~ for_if_clauses ')'
+    { // '(' named_expression for_if_clauses ')'
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> genexp[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'(' named_expression ~ for_if_clauses ')'"));
-        int _cut_var = 0;
+        D(fprintf(stderr, "%*c> genexp[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'(' named_expression for_if_clauses ')'"));
         Token * _literal;
         Token * _literal_1;
         expr_ty a;
@@ -11350,14 +11344,12 @@ genexp_rule(Parser *p)
             &&
             (a = named_expression_rule(p))  // named_expression
             &&
-            (_cut_var = 1)
-            &&
             (b = for_if_clauses_rule(p))  // for_if_clauses
             &&
             (_literal_1 = _PyPegen_expect_token(p, 8))  // token=')'
         )
         {
-            D(fprintf(stderr, "%*c+ genexp[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'(' named_expression ~ for_if_clauses ')'"));
+            D(fprintf(stderr, "%*c+ genexp[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'(' named_expression for_if_clauses ')'"));
             Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
             if (_token == NULL) {
                 D(p->level--);
@@ -11377,11 +11369,7 @@ genexp_rule(Parser *p)
         }
         p->mark = _mark;
         D(fprintf(stderr, "%*c%s genexp[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'(' named_expression ~ for_if_clauses ')'"));
-        if (_cut_var) {
-            D(p->level--);
-            return NULL;
-        }
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'(' named_expression for_if_clauses ')'"));
     }
     if (p->call_invalid_rules) { // invalid_comprehension
         if (p->error_indicator) {
@@ -11473,7 +11461,7 @@ set_rule(Parser *p)
     return _res;
 }
 
-// setcomp: '{' named_expression ~ for_if_clauses '}' | invalid_comprehension
+// setcomp: '{' named_expression for_if_clauses '}' | invalid_comprehension
 static expr_ty
 setcomp_rule(Parser *p)
 {
@@ -11493,13 +11481,12 @@ setcomp_rule(Parser *p)
     UNUSED(_start_lineno); // Only used by EXTRA macro
     int _start_col_offset = p->tokens[_mark]->col_offset;
     UNUSED(_start_col_offset); // Only used by EXTRA macro
-    { // '{' named_expression ~ for_if_clauses '}'
+    { // '{' named_expression for_if_clauses '}'
         if (p->error_indicator) {
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> setcomp[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'{' named_expression ~ for_if_clauses '}'"));
-        int _cut_var = 0;
+        D(fprintf(stderr, "%*c> setcomp[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'{' named_expression for_if_clauses '}'"));
         Token * _literal;
         Token * _literal_1;
         expr_ty a;
@@ -11509,14 +11496,12 @@ setcomp_rule(Parser *p)
             &&
             (a = named_expression_rule(p))  // named_expression
             &&
-            (_cut_var = 1)
-            &&
             (b = for_if_clauses_rule(p))  // for_if_clauses
             &&
             (_literal_1 = _PyPegen_expect_token(p, 26))  // token='}'
         )
         {
-            D(fprintf(stderr, "%*c+ setcomp[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'{' named_expression ~ for_if_clauses '}'"));
+            D(fprintf(stderr, "%*c+ setcomp[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'{' named_expression for_if_clauses '}'"));
             Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
             if (_token == NULL) {
                 D(p->level--);
@@ -11536,11 +11521,7 @@ setcomp_rule(Parser *p)
         }
         p->mark = _mark;
         D(fprintf(stderr, "%*c%s setcomp[%d-%d]: %s failed!\n", p->level, ' ',
-                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'{' named_expression ~ for_if_clauses '}'"));
-        if (_cut_var) {
-            D(p->level--);
-            return NULL;
-        }
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'{' named_expression for_if_clauses '}'"));
     }
     if (p->call_invalid_rules) { // invalid_comprehension
         if (p->error_indicator) {
@@ -15194,7 +15175,9 @@ invalid_primary_rule(Parser *p)
     return _res;
 }
 
-// invalid_comprehension: ('[' | '(' | '{') starred_expression for_if_clauses
+// invalid_comprehension:
+//     | ('[' | '(' | '{') starred_expression for_if_clauses
+//     | ('[' | '{') star_named_expression ',' star_named_expressions?
 static void *
 invalid_comprehension_rule(Parser *p)
 {
@@ -15235,6 +15218,40 @@ invalid_comprehension_rule(Parser *p)
         D(fprintf(stderr, "%*c%s invalid_comprehension[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "('[' | '(' | '{') starred_expression for_if_clauses"));
     }
+    { // ('[' | '{') star_named_expression ',' star_named_expressions?
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> invalid_comprehension[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('[' | '{') star_named_expression ',' star_named_expressions?"));
+        Token * _literal;
+        void *_opt_var;
+        UNUSED(_opt_var); // Silence compiler warnings
+        void *_tmp_132_var;
+        expr_ty a;
+        if (
+            (_tmp_132_var = _tmp_132_rule(p))  // '[' | '{'
+            &&
+            (a = star_named_expression_rule(p))  // star_named_expression
+            &&
+            (_literal = _PyPegen_expect_token(p, 12))  // token=','
+            &&
+            (_opt_var = star_named_expressions_rule(p), 1)  // star_named_expressions?
+        )
+        {
+            D(fprintf(stderr, "%*c+ invalid_comprehension[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "('[' | '{') star_named_expression ',' star_named_expressions?"));
+            _res = RAISE_SYNTAX_ERROR_KNOWN_LOCATION ( a , "did you forget parentheses around the comprehension target?" );
+            if (_res == NULL && PyErr_Occurred()) {
+                p->error_indicator = 1;
+                D(p->level--);
+                return NULL;
+            }
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s invalid_comprehension[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "('[' | '{') star_named_expression ',' star_named_expressions?"));
+    }
     _res = NULL;
   done:
     D(p->level--);
@@ -15311,11 +15328,11 @@ invalid_parameters_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> invalid_parameters[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default* invalid_parameters_helper param_no_default"));
-        asdl_seq * _loop0_132_var;
+        asdl_seq * _loop0_133_var;
         void *invalid_parameters_helper_var;
         arg_ty param_no_default_var;
         if (
-            (_loop0_132_var = _loop0_132_rule(p))  // param_no_default*
+            (_loop0_133_var = _loop0_133_rule(p))  // param_no_default*
             &&
             (invalid_parameters_helper_var = invalid_parameters_helper_rule(p))  // invalid_parameters_helper
             &&
@@ -15382,13 +15399,13 @@ invalid_parameters_helper_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> invalid_parameters_helper[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default+"));
-        asdl_seq * _loop1_133_var;
+        asdl_seq * _loop1_134_var;
         if (
-            (_loop1_133_var = _loop1_133_rule(p))  // param_with_default+
+            (_loop1_134_var = _loop1_134_rule(p))  // param_with_default+
         )
         {
             D(fprintf(stderr, "%*c+ invalid_parameters_helper[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "param_with_default+"));
-            _res = _loop1_133_var;
+            _res = _loop1_134_var;
             goto done;
         }
         p->mark = _mark;
@@ -15419,11 +15436,11 @@ invalid_lambda_parameters_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> invalid_lambda_parameters[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default* invalid_lambda_parameters_helper lambda_param_no_default"));
-        asdl_seq * _loop0_134_var;
+        asdl_seq * _loop0_135_var;
         void *invalid_lambda_parameters_helper_var;
         arg_ty lambda_param_no_default_var;
         if (
-            (_loop0_134_var = _loop0_134_rule(p))  // lambda_param_no_default*
+            (_loop0_135_var = _loop0_135_rule(p))  // lambda_param_no_default*
             &&
             (invalid_lambda_parameters_helper_var = invalid_lambda_parameters_helper_rule(p))  // invalid_lambda_parameters_helper
             &&
@@ -15492,13 +15509,13 @@ invalid_lambda_parameters_helper_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> invalid_lambda_parameters_helper[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default+"));
-        asdl_seq * _loop1_135_var;
+        asdl_seq * _loop1_136_var;
         if (
-            (_loop1_135_var = _loop1_135_rule(p))  // lambda_param_with_default+
+            (_loop1_136_var = _loop1_136_rule(p))  // lambda_param_with_default+
         )
         {
             D(fprintf(stderr, "%*c+ invalid_lambda_parameters_helper[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default+"));
-            _res = _loop1_135_var;
+            _res = _loop1_136_var;
             goto done;
         }
         p->mark = _mark;
@@ -15529,11 +15546,11 @@ invalid_star_etc_rule(Parser *p)
         }
         D(fprintf(stderr, "%*c> invalid_star_etc[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'*' (')' | ',' (')' | '**'))"));
         Token * _literal;
-        void *_tmp_136_var;
+        void *_tmp_137_var;
         if (
             (_literal = _PyPegen_expect_token(p, 16))  // token='*'
             &&
-            (_tmp_136_var = _tmp_136_rule(p))  // ')' | ',' (')' | '**')
+            (_tmp_137_var = _tmp_137_rule(p))  // ')' | ',' (')' | '**')
         )
         {
             D(fprintf(stderr, "%*c+ invalid_star_etc[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'*' (')' | ',' (')' | '**'))"));
@@ -15603,11 +15620,11 @@ invalid_lambda_star_etc_rule(Parser *p)
         }
         D(fprintf(stderr, "%*c> invalid_lambda_star_etc[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'*' (':' | ',' (':' | '**'))"));
         Token * _literal;
-        void *_tmp_137_var;
+        void *_tmp_138_var;
         if (
             (_literal = _PyPegen_expect_token(p, 16))  // token='*'
             &&
-            (_tmp_137_var = _tmp_137_rule(p))  // ':' | ',' (':' | '**')
+            (_tmp_138_var = _tmp_138_rule(p))  // ':' | ',' (':' | '**')
         )
         {
             D(fprintf(stderr, "%*c+ invalid_lambda_star_etc[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'*' (':' | ',' (':' | '**'))"));
@@ -17116,12 +17133,12 @@ _loop1_22_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop1_22[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(star_targets '=')"));
-        void *_tmp_138_var;
+        void *_tmp_139_var;
         while (
-            (_tmp_138_var = _tmp_138_rule(p))  // star_targets '='
+            (_tmp_139_var = _tmp_139_rule(p))  // star_targets '='
         )
         {
-            _res = _tmp_138_var;
+            _res = _tmp_139_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -17624,12 +17641,12 @@ _loop0_31_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop0_31[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('.' | '...')"));
-        void *_tmp_139_var;
+        void *_tmp_140_var;
         while (
-            (_tmp_139_var = _tmp_139_rule(p))  // '.' | '...'
+            (_tmp_140_var = _tmp_140_rule(p))  // '.' | '...'
         )
         {
-            _res = _tmp_139_var;
+            _res = _tmp_140_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -17690,12 +17707,12 @@ _loop1_32_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop1_32[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('.' | '...')"));
-        void *_tmp_140_var;
+        void *_tmp_141_var;
         while (
-            (_tmp_140_var = _tmp_140_rule(p))  // '.' | '...'
+            (_tmp_141_var = _tmp_141_rule(p))  // '.' | '...'
         )
         {
-            _res = _tmp_140_var;
+            _res = _tmp_141_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -19852,12 +19869,12 @@ _loop1_68_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop1_68[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('@' named_expression NEWLINE)"));
-        void *_tmp_141_var;
+        void *_tmp_142_var;
         while (
-            (_tmp_141_var = _tmp_141_rule(p))  // '@' named_expression NEWLINE
+            (_tmp_142_var = _tmp_142_rule(p))  // '@' named_expression NEWLINE
         )
         {
-            _res = _tmp_141_var;
+            _res = _tmp_142_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -19970,12 +19987,12 @@ _loop1_70_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop1_70[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' star_expression)"));
-        void *_tmp_142_var;
+        void *_tmp_143_var;
         while (
-            (_tmp_142_var = _tmp_142_rule(p))  // ',' star_expression
+            (_tmp_143_var = _tmp_143_rule(p))  // ',' star_expression
         )
         {
-            _res = _tmp_142_var;
+            _res = _tmp_143_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -20155,12 +20172,12 @@ _loop1_73_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop1_73[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' expression)"));
-        void *_tmp_143_var;
+        void *_tmp_144_var;
         while (
-            (_tmp_143_var = _tmp_143_rule(p))  // ',' expression
+            (_tmp_144_var = _tmp_144_rule(p))  // ',' expression
         )
         {
-            _res = _tmp_143_var;
+            _res = _tmp_144_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -21185,12 +21202,12 @@ _loop1_88_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop1_88[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('or' conjunction)"));
-        void *_tmp_144_var;
+        void *_tmp_145_var;
         while (
-            (_tmp_144_var = _tmp_144_rule(p))  // 'or' conjunction
+            (_tmp_145_var = _tmp_145_rule(p))  // 'or' conjunction
         )
         {
-            _res = _tmp_144_var;
+            _res = _tmp_145_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -21256,12 +21273,12 @@ _loop1_89_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop1_89[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('and' inversion)"));
-        void *_tmp_145_var;
+        void *_tmp_146_var;
         while (
-            (_tmp_145_var = _tmp_145_rule(p))  // 'and' inversion
+            (_tmp_146_var = _tmp_146_rule(p))  // 'and' inversion
         )
         {
-            _res = _tmp_145_var;
+            _res = _tmp_146_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -22177,12 +22194,12 @@ _loop0_104_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop0_104[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('if' disjunction)"));
-        void *_tmp_146_var;
+        void *_tmp_147_var;
         while (
-            (_tmp_146_var = _tmp_146_rule(p))  // 'if' disjunction
+            (_tmp_147_var = _tmp_147_rule(p))  // 'if' disjunction
         )
         {
-            _res = _tmp_146_var;
+            _res = _tmp_147_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -22243,12 +22260,12 @@ _loop0_105_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop0_105[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('if' disjunction)"));
-        void *_tmp_147_var;
+        void *_tmp_148_var;
         while (
-            (_tmp_147_var = _tmp_147_rule(p))  // 'if' disjunction
+            (_tmp_148_var = _tmp_148_rule(p))  // 'if' disjunction
         )
         {
-            _res = _tmp_147_var;
+            _res = _tmp_148_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -22314,7 +22331,7 @@ _loop0_107_rule(Parser *p)
         while (
             (_literal = _PyPegen_expect_token(p, 12))  // token=','
             &&
-            (elem = _tmp_148_rule(p))  // starred_expression | named_expression !'='
+            (elem = _tmp_149_rule(p))  // starred_expression | named_expression !'='
         )
         {
             _res = elem;
@@ -22377,7 +22394,7 @@ _gather_106_rule(Parser *p)
         void *elem;
         asdl_seq * seq;
         if (
-            (elem = _tmp_148_rule(p))  // starred_expression | named_expression !'='
+            (elem = _tmp_149_rule(p))  // starred_expression | named_expression !'='
             &&
             (seq = _loop0_107_rule(p))  // _loop0_107
         )
@@ -22923,12 +22940,12 @@ _loop0_117_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop0_117[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' star_target)"));
-        void *_tmp_149_var;
+        void *_tmp_150_var;
         while (
-            (_tmp_149_var = _tmp_149_rule(p))  // ',' star_target
+            (_tmp_150_var = _tmp_150_rule(p))  // ',' star_target
         )
         {
-            _res = _tmp_149_var;
+            _res = _tmp_150_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -23103,12 +23120,12 @@ _loop1_120_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop1_120[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' star_target)"));
-        void *_tmp_150_var;
+        void *_tmp_151_var;
         while (
-            (_tmp_150_var = _tmp_150_rule(p))  // ',' star_target
+            (_tmp_151_var = _tmp_151_rule(p))  // ',' star_target
         )
         {
-            _res = _tmp_150_var;
+            _res = _tmp_151_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -23564,12 +23581,12 @@ _loop0_128_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop0_128[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(star_targets '=')"));
-        void *_tmp_151_var;
+        void *_tmp_152_var;
         while (
-            (_tmp_151_var = _tmp_151_rule(p))  // star_targets '='
+            (_tmp_152_var = _tmp_152_rule(p))  // star_targets '='
         )
         {
-            _res = _tmp_151_var;
+            _res = _tmp_152_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -23630,12 +23647,12 @@ _loop0_129_rule(Parser *p)
             return NULL;
         }
         D(fprintf(stderr, "%*c> _loop0_129[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(star_targets '=')"));
-        void *_tmp_152_var;
+        void *_tmp_153_var;
         while (
-            (_tmp_152_var = _tmp_152_rule(p))  // star_targets '='
+            (_tmp_153_var = _tmp_153_rule(p))  // star_targets '='
         )
         {
-            _res = _tmp_152_var;
+            _res = _tmp_153_var;
             if (_n == _children_capacity) {
                 _children_capacity *= 2;
                 void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
@@ -23798,9 +23815,64 @@ _tmp_131_rule(Parser *p)
     return _res;
 }
 
-// _loop0_132: param_no_default
+// _tmp_132: '[' | '{'
+static void *
+_tmp_132_rule(Parser *p)
+{
+    D(p->level++);
+    if (p->error_indicator) {
+        D(p->level--);
+        return NULL;
+    }
+    void * _res = NULL;
+    int _mark = p->mark;
+    { // '['
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_132[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'['"));
+        Token * _literal;
+        if (
+            (_literal = _PyPegen_expect_token(p, 9))  // token='['
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_132[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'['"));
+            _res = _literal;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_132[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'['"));
+    }
+    { // '{'
+        if (p->error_indicator) {
+            D(p->level--);
+            return NULL;
+        }
+        D(fprintf(stderr, "%*c> _tmp_132[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'{'"));
+        Token * _literal;
+        if (
+            (_literal = _PyPegen_expect_token(p, 25))  // token='{'
+        )
+        {
+            D(fprintf(stderr, "%*c+ _tmp_132[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'{'"));
+            _res = _literal;
+            goto done;
+        }
+        p->mark = _mark;
+        D(fprintf(stderr, "%*c%s _tmp_132[%d-%d]: %s failed!\n", p->level, ' ',
+                  p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'{'"));
+    }
+    _res = NULL;
+  done:
+    D(p->level--);
+    return _res;
+}
+
+// _loop0_133: param_no_default
 static asdl_seq *
-_loop0_132_rule(Parser *p)
+_loop0_133_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23824,7 +23896,7 @@ _loop0_132_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_132[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
+        D(fprintf(stderr, "%*c> _loop0_133[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_no_default"));
         arg_ty param_no_default_var;
         while (
             (param_no_default_var = param_no_default_rule(p))  // param_no_default
@@ -23846,7 +23918,7 @@ _loop0_132_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_132[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_133[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_no_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -23859,14 +23931,14 @@ _loop0_132_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_132_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_133_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_133: param_with_default
+// _loop1_134: param_with_default
 static asdl_seq *
-_loop1_133_rule(Parser *p)
+_loop1_134_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23890,7 +23962,7 @@ _loop1_133_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_133[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
+        D(fprintf(stderr, "%*c> _loop1_134[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "param_with_default"));
         NameDefaultPair* param_with_default_var;
         while (
             (param_with_default_var = param_with_default_rule(p))  // param_with_default
@@ -23912,7 +23984,7 @@ _loop1_133_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_133[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_134[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "param_with_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -23930,14 +24002,14 @@ _loop1_133_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_133_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_134_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop0_134: lambda_param_no_default
+// _loop0_135: lambda_param_no_default
 static asdl_seq *
-_loop0_134_rule(Parser *p)
+_loop0_135_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -23961,7 +24033,7 @@ _loop0_134_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop0_134[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
+        D(fprintf(stderr, "%*c> _loop0_135[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_no_default"));
         arg_ty lambda_param_no_default_var;
         while (
             (lambda_param_no_default_var = lambda_param_no_default_rule(p))  // lambda_param_no_default
@@ -23983,7 +24055,7 @@ _loop0_134_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop0_134[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop0_135[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_no_default"));
     }
     asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
@@ -23996,14 +24068,14 @@ _loop0_134_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop0_134_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop0_135_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _loop1_135: lambda_param_with_default
+// _loop1_136: lambda_param_with_default
 static asdl_seq *
-_loop1_135_rule(Parser *p)
+_loop1_136_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24027,7 +24099,7 @@ _loop1_135_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _loop1_135[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
+        D(fprintf(stderr, "%*c> _loop1_136[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "lambda_param_with_default"));
         NameDefaultPair* lambda_param_with_default_var;
         while (
             (lambda_param_with_default_var = lambda_param_with_default_rule(p))  // lambda_param_with_default
@@ -24049,7 +24121,7 @@ _loop1_135_rule(Parser *p)
             _mark = p->mark;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _loop1_135[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _loop1_136[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "lambda_param_with_default"));
     }
     if (_n == 0 || p->error_indicator) {
@@ -24067,14 +24139,14 @@ _loop1_135_rule(Parser *p)
     }
     for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
     PyMem_Free(_children);
-    _PyPegen_insert_memo(p, _start_mark, _loop1_135_type, _seq);
+    _PyPegen_insert_memo(p, _start_mark, _loop1_136_type, _seq);
     D(p->level--);
     return _seq;
 }
 
-// _tmp_136: ')' | ',' (')' | '**')
+// _tmp_137: ')' | ',' (')' | '**')
 static void *
-_tmp_136_rule(Parser *p)
+_tmp_137_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24088,18 +24160,18 @@ _tmp_136_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_136[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "')'"));
+        D(fprintf(stderr, "%*c> _tmp_137[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "')'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 8))  // token=')'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_136[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "')'"));
+            D(fprintf(stderr, "%*c+ _tmp_137[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "')'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_136[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_137[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "')'"));
     }
     { // ',' (')' | '**')
@@ -24107,21 +24179,21 @@ _tmp_136_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_136[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (')' | '**')"));
+        D(fprintf(stderr, "%*c> _tmp_137[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (')' | '**')"));
         Token * _literal;
-        void *_tmp_153_var;
+        void *_tmp_154_var;
         if (
             (_literal = _PyPegen_expect_token(p, 12))  // token=','
             &&
-            (_tmp_153_var = _tmp_153_rule(p))  // ')' | '**'
+            (_tmp_154_var = _tmp_154_rule(p))  // ')' | '**'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_136[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' (')' | '**')"));
-            _res = _PyPegen_dummy_name(p, _literal, _tmp_153_var);
+            D(fprintf(stderr, "%*c+ _tmp_137[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' (')' | '**')"));
+            _res = _PyPegen_dummy_name(p, _literal, _tmp_154_var);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_136[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_137[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' (')' | '**')"));
     }
     _res = NULL;
@@ -24130,9 +24202,9 @@ _tmp_136_rule(Parser *p)
     return _res;
 }
 
-// _tmp_137: ':' | ',' (':' | '**')
+// _tmp_138: ':' | ',' (':' | '**')
 static void *
-_tmp_137_rule(Parser *p)
+_tmp_138_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24146,18 +24218,18 @@ _tmp_137_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_137[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
+        D(fprintf(stderr, "%*c> _tmp_138[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 11))  // token=':'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_137[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
+            D(fprintf(stderr, "%*c+ _tmp_138[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_137[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_138[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "':'"));
     }
     { // ',' (':' | '**')
@@ -24165,21 +24237,21 @@ _tmp_137_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_137[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (':' | '**')"));
+        D(fprintf(stderr, "%*c> _tmp_138[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (':' | '**')"));
         Token * _literal;
-        void *_tmp_154_var;
+        void *_tmp_155_var;
         if (
             (_literal = _PyPegen_expect_token(p, 12))  // token=','
             &&
-            (_tmp_154_var = _tmp_154_rule(p))  // ':' | '**'
+            (_tmp_155_var = _tmp_155_rule(p))  // ':' | '**'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_137[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' (':' | '**')"));
-            _res = _PyPegen_dummy_name(p, _literal, _tmp_154_var);
+            D(fprintf(stderr, "%*c+ _tmp_138[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' (':' | '**')"));
+            _res = _PyPegen_dummy_name(p, _literal, _tmp_155_var);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_137[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_138[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' (':' | '**')"));
     }
     _res = NULL;
@@ -24188,9 +24260,9 @@ _tmp_137_rule(Parser *p)
     return _res;
 }
 
-// _tmp_138: star_targets '='
+// _tmp_139: star_targets '='
 static void *
-_tmp_138_rule(Parser *p)
+_tmp_139_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24204,7 +24276,7 @@ _tmp_138_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_138[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+        D(fprintf(stderr, "%*c> _tmp_139[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
         Token * _literal;
         expr_ty z;
         if (
@@ -24213,7 +24285,7 @@ _tmp_138_rule(Parser *p)
             (_literal = _PyPegen_expect_token(p, 22))  // token='='
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_138[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+            D(fprintf(stderr, "%*c+ _tmp_139[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
             _res = z;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -24223,7 +24295,7 @@ _tmp_138_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_138[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_139[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_targets '='"));
     }
     _res = NULL;
@@ -24232,9 +24304,9 @@ _tmp_138_rule(Parser *p)
     return _res;
 }
 
-// _tmp_139: '.' | '...'
+// _tmp_140: '.' | '...'
 static void *
-_tmp_139_rule(Parser *p)
+_tmp_140_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24248,18 +24320,18 @@ _tmp_139_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_139[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
+        D(fprintf(stderr, "%*c> _tmp_140[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 23))  // token='.'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_139[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
+            D(fprintf(stderr, "%*c+ _tmp_140[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_139[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_140[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'.'"));
     }
     { // '...'
@@ -24267,18 +24339,18 @@ _tmp_139_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_139[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'...'"));
+        D(fprintf(stderr, "%*c> _tmp_140[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'...'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 52))  // token='...'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_139[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'...'"));
+            D(fprintf(stderr, "%*c+ _tmp_140[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'...'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_139[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_140[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'...'"));
     }
     _res = NULL;
@@ -24287,9 +24359,9 @@ _tmp_139_rule(Parser *p)
     return _res;
 }
 
-// _tmp_140: '.' | '...'
+// _tmp_141: '.' | '...'
 static void *
-_tmp_140_rule(Parser *p)
+_tmp_141_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24303,18 +24375,18 @@ _tmp_140_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_140[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
+        D(fprintf(stderr, "%*c> _tmp_141[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 23))  // token='.'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_140[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
+            D(fprintf(stderr, "%*c+ _tmp_141[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_140[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_141[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'.'"));
     }
     { // '...'
@@ -24322,18 +24394,18 @@ _tmp_140_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_140[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'...'"));
+        D(fprintf(stderr, "%*c> _tmp_141[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'...'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 52))  // token='...'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_140[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'...'"));
+            D(fprintf(stderr, "%*c+ _tmp_141[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'...'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_140[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_141[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'...'"));
     }
     _res = NULL;
@@ -24342,9 +24414,9 @@ _tmp_140_rule(Parser *p)
     return _res;
 }
 
-// _tmp_141: '@' named_expression NEWLINE
+// _tmp_142: '@' named_expression NEWLINE
 static void *
-_tmp_141_rule(Parser *p)
+_tmp_142_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24358,7 +24430,7 @@ _tmp_141_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_141[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'@' named_expression NEWLINE"));
+        D(fprintf(stderr, "%*c> _tmp_142[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'@' named_expression NEWLINE"));
         Token * _literal;
         expr_ty f;
         Token * newline_var;
@@ -24370,7 +24442,7 @@ _tmp_141_rule(Parser *p)
             (newline_var = _PyPegen_expect_token(p, NEWLINE))  // token='NEWLINE'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_141[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'@' named_expression NEWLINE"));
+            D(fprintf(stderr, "%*c+ _tmp_142[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'@' named_expression NEWLINE"));
             _res = f;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -24380,7 +24452,7 @@ _tmp_141_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_141[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_142[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'@' named_expression NEWLINE"));
     }
     _res = NULL;
@@ -24389,9 +24461,9 @@ _tmp_141_rule(Parser *p)
     return _res;
 }
 
-// _tmp_142: ',' star_expression
+// _tmp_143: ',' star_expression
 static void *
-_tmp_142_rule(Parser *p)
+_tmp_143_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24405,7 +24477,7 @@ _tmp_142_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_142[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_expression"));
+        D(fprintf(stderr, "%*c> _tmp_143[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_expression"));
         Token * _literal;
         expr_ty c;
         if (
@@ -24414,7 +24486,7 @@ _tmp_142_rule(Parser *p)
             (c = star_expression_rule(p))  // star_expression
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_142[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_expression"));
+            D(fprintf(stderr, "%*c+ _tmp_143[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_expression"));
             _res = c;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -24424,7 +24496,7 @@ _tmp_142_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_142[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_143[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' star_expression"));
     }
     _res = NULL;
@@ -24433,9 +24505,9 @@ _tmp_142_rule(Parser *p)
     return _res;
 }
 
-// _tmp_143: ',' expression
+// _tmp_144: ',' expression
 static void *
-_tmp_143_rule(Parser *p)
+_tmp_144_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24449,7 +24521,7 @@ _tmp_143_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_143[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' expression"));
+        D(fprintf(stderr, "%*c> _tmp_144[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' expression"));
         Token * _literal;
         expr_ty c;
         if (
@@ -24458,7 +24530,7 @@ _tmp_143_rule(Parser *p)
             (c = expression_rule(p))  // expression
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_143[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' expression"));
+            D(fprintf(stderr, "%*c+ _tmp_144[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' expression"));
             _res = c;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -24468,7 +24540,7 @@ _tmp_143_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_143[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_144[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' expression"));
     }
     _res = NULL;
@@ -24477,9 +24549,9 @@ _tmp_143_rule(Parser *p)
     return _res;
 }
 
-// _tmp_144: 'or' conjunction
+// _tmp_145: 'or' conjunction
 static void *
-_tmp_144_rule(Parser *p)
+_tmp_145_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24493,7 +24565,7 @@ _tmp_144_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_144[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'or' conjunction"));
+        D(fprintf(stderr, "%*c> _tmp_145[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'or' conjunction"));
         Token * _keyword;
         expr_ty c;
         if (
@@ -24502,7 +24574,7 @@ _tmp_144_rule(Parser *p)
             (c = conjunction_rule(p))  // conjunction
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_144[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'or' conjunction"));
+            D(fprintf(stderr, "%*c+ _tmp_145[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'or' conjunction"));
             _res = c;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -24512,7 +24584,7 @@ _tmp_144_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_144[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_145[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'or' conjunction"));
     }
     _res = NULL;
@@ -24521,9 +24593,9 @@ _tmp_144_rule(Parser *p)
     return _res;
 }
 
-// _tmp_145: 'and' inversion
+// _tmp_146: 'and' inversion
 static void *
-_tmp_145_rule(Parser *p)
+_tmp_146_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24537,7 +24609,7 @@ _tmp_145_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_145[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'and' inversion"));
+        D(fprintf(stderr, "%*c> _tmp_146[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'and' inversion"));
         Token * _keyword;
         expr_ty c;
         if (
@@ -24546,7 +24618,7 @@ _tmp_145_rule(Parser *p)
             (c = inversion_rule(p))  // inversion
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_145[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'and' inversion"));
+            D(fprintf(stderr, "%*c+ _tmp_146[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'and' inversion"));
             _res = c;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -24556,7 +24628,7 @@ _tmp_145_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_145[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_146[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'and' inversion"));
     }
     _res = NULL;
@@ -24565,9 +24637,9 @@ _tmp_145_rule(Parser *p)
     return _res;
 }
 
-// _tmp_146: 'if' disjunction
+// _tmp_147: 'if' disjunction
 static void *
-_tmp_146_rule(Parser *p)
+_tmp_147_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24581,7 +24653,7 @@ _tmp_146_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_146[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
+        D(fprintf(stderr, "%*c> _tmp_147[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
         Token * _keyword;
         expr_ty z;
         if (
@@ -24590,7 +24662,7 @@ _tmp_146_rule(Parser *p)
             (z = disjunction_rule(p))  // disjunction
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_146[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
+            D(fprintf(stderr, "%*c+ _tmp_147[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
             _res = z;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -24600,7 +24672,7 @@ _tmp_146_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_146[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_147[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'if' disjunction"));
     }
     _res = NULL;
@@ -24609,9 +24681,9 @@ _tmp_146_rule(Parser *p)
     return _res;
 }
 
-// _tmp_147: 'if' disjunction
+// _tmp_148: 'if' disjunction
 static void *
-_tmp_147_rule(Parser *p)
+_tmp_148_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24625,7 +24697,7 @@ _tmp_147_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_147[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
+        D(fprintf(stderr, "%*c> _tmp_148[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
         Token * _keyword;
         expr_ty z;
         if (
@@ -24634,7 +24706,7 @@ _tmp_147_rule(Parser *p)
             (z = disjunction_rule(p))  // disjunction
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_147[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
+            D(fprintf(stderr, "%*c+ _tmp_148[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
             _res = z;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -24644,7 +24716,7 @@ _tmp_147_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_147[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_148[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'if' disjunction"));
     }
     _res = NULL;
@@ -24653,9 +24725,9 @@ _tmp_147_rule(Parser *p)
     return _res;
 }
 
-// _tmp_148: starred_expression | named_expression !'='
+// _tmp_149: starred_expression | named_expression !'='
 static void *
-_tmp_148_rule(Parser *p)
+_tmp_149_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24669,18 +24741,18 @@ _tmp_148_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_148[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "starred_expression"));
+        D(fprintf(stderr, "%*c> _tmp_149[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "starred_expression"));
         expr_ty starred_expression_var;
         if (
             (starred_expression_var = starred_expression_rule(p))  // starred_expression
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_148[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "starred_expression"));
+            D(fprintf(stderr, "%*c+ _tmp_149[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "starred_expression"));
             _res = starred_expression_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_148[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_149[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "starred_expression"));
     }
     { // named_expression !'='
@@ -24688,7 +24760,7 @@ _tmp_148_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_148[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "named_expression !'='"));
+        D(fprintf(stderr, "%*c> _tmp_149[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "named_expression !'='"));
         expr_ty named_expression_var;
         if (
             (named_expression_var = named_expression_rule(p))  // named_expression
@@ -24696,12 +24768,12 @@ _tmp_148_rule(Parser *p)
             _PyPegen_lookahead_with_int(0, _PyPegen_expect_token, p, 22)  // token='='
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_148[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "named_expression !'='"));
+            D(fprintf(stderr, "%*c+ _tmp_149[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "named_expression !'='"));
             _res = named_expression_var;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_148[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_149[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "named_expression !'='"));
     }
     _res = NULL;
@@ -24710,9 +24782,9 @@ _tmp_148_rule(Parser *p)
     return _res;
 }
 
-// _tmp_149: ',' star_target
+// _tmp_150: ',' star_target
 static void *
-_tmp_149_rule(Parser *p)
+_tmp_150_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24726,7 +24798,7 @@ _tmp_149_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_149[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
+        D(fprintf(stderr, "%*c> _tmp_150[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
         Token * _literal;
         expr_ty c;
         if (
@@ -24735,7 +24807,7 @@ _tmp_149_rule(Parser *p)
             (c = star_target_rule(p))  // star_target
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_149[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_target"));
+            D(fprintf(stderr, "%*c+ _tmp_150[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_target"));
             _res = c;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -24745,7 +24817,7 @@ _tmp_149_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_149[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_150[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' star_target"));
     }
     _res = NULL;
@@ -24754,9 +24826,9 @@ _tmp_149_rule(Parser *p)
     return _res;
 }
 
-// _tmp_150: ',' star_target
+// _tmp_151: ',' star_target
 static void *
-_tmp_150_rule(Parser *p)
+_tmp_151_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24770,7 +24842,7 @@ _tmp_150_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_150[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
+        D(fprintf(stderr, "%*c> _tmp_151[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
         Token * _literal;
         expr_ty c;
         if (
@@ -24779,7 +24851,7 @@ _tmp_150_rule(Parser *p)
             (c = star_target_rule(p))  // star_target
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_150[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_target"));
+            D(fprintf(stderr, "%*c+ _tmp_151[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_target"));
             _res = c;
             if (_res == NULL && PyErr_Occurred()) {
                 p->error_indicator = 1;
@@ -24789,7 +24861,7 @@ _tmp_150_rule(Parser *p)
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_150[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_151[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' star_target"));
     }
     _res = NULL;
@@ -24798,9 +24870,9 @@ _tmp_150_rule(Parser *p)
     return _res;
 }
 
-// _tmp_151: star_targets '='
+// _tmp_152: star_targets '='
 static void *
-_tmp_151_rule(Parser *p)
+_tmp_152_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24814,7 +24886,7 @@ _tmp_151_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_151[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+        D(fprintf(stderr, "%*c> _tmp_152[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
         Token * _literal;
         expr_ty star_targets_var;
         if (
@@ -24823,12 +24895,12 @@ _tmp_151_rule(Parser *p)
             (_literal = _PyPegen_expect_token(p, 22))  // token='='
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_151[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+            D(fprintf(stderr, "%*c+ _tmp_152[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
             _res = _PyPegen_dummy_name(p, star_targets_var, _literal);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_151[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_152[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_targets '='"));
     }
     _res = NULL;
@@ -24837,9 +24909,9 @@ _tmp_151_rule(Parser *p)
     return _res;
 }
 
-// _tmp_152: star_targets '='
+// _tmp_153: star_targets '='
 static void *
-_tmp_152_rule(Parser *p)
+_tmp_153_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24853,7 +24925,7 @@ _tmp_152_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_152[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+        D(fprintf(stderr, "%*c> _tmp_153[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
         Token * _literal;
         expr_ty star_targets_var;
         if (
@@ -24862,12 +24934,12 @@ _tmp_152_rule(Parser *p)
             (_literal = _PyPegen_expect_token(p, 22))  // token='='
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_152[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+            D(fprintf(stderr, "%*c+ _tmp_153[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
             _res = _PyPegen_dummy_name(p, star_targets_var, _literal);
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_152[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_153[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_targets '='"));
     }
     _res = NULL;
@@ -24876,9 +24948,9 @@ _tmp_152_rule(Parser *p)
     return _res;
 }
 
-// _tmp_153: ')' | '**'
+// _tmp_154: ')' | '**'
 static void *
-_tmp_153_rule(Parser *p)
+_tmp_154_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24892,18 +24964,18 @@ _tmp_153_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_153[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "')'"));
+        D(fprintf(stderr, "%*c> _tmp_154[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "')'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 8))  // token=')'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_153[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "')'"));
+            D(fprintf(stderr, "%*c+ _tmp_154[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "')'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_153[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_154[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "')'"));
     }
     { // '**'
@@ -24911,18 +24983,18 @@ _tmp_153_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_153[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'**'"));
+        D(fprintf(stderr, "%*c> _tmp_154[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'**'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 35))  // token='**'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_153[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'**'"));
+            D(fprintf(stderr, "%*c+ _tmp_154[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'**'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_153[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_154[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'**'"));
     }
     _res = NULL;
@@ -24931,9 +25003,9 @@ _tmp_153_rule(Parser *p)
     return _res;
 }
 
-// _tmp_154: ':' | '**'
+// _tmp_155: ':' | '**'
 static void *
-_tmp_154_rule(Parser *p)
+_tmp_155_rule(Parser *p)
 {
     D(p->level++);
     if (p->error_indicator) {
@@ -24947,18 +25019,18 @@ _tmp_154_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_154[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
+        D(fprintf(stderr, "%*c> _tmp_155[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 11))  // token=':'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_154[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
+            D(fprintf(stderr, "%*c+ _tmp_155[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_154[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_155[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "':'"));
     }
     { // '**'
@@ -24966,18 +25038,18 @@ _tmp_154_rule(Parser *p)
             D(p->level--);
             return NULL;
         }
-        D(fprintf(stderr, "%*c> _tmp_154[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'**'"));
+        D(fprintf(stderr, "%*c> _tmp_155[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'**'"));
         Token * _literal;
         if (
             (_literal = _PyPegen_expect_token(p, 35))  // token='**'
         )
         {
-            D(fprintf(stderr, "%*c+ _tmp_154[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'**'"));
+            D(fprintf(stderr, "%*c+ _tmp_155[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'**'"));
             _res = _literal;
             goto done;
         }
         p->mark = _mark;
-        D(fprintf(stderr, "%*c%s _tmp_154[%d-%d]: %s failed!\n", p->level, ' ',
+        D(fprintf(stderr, "%*c%s _tmp_155[%d-%d]: %s failed!\n", p->level, ' ',
                   p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'**'"));
     }
     _res = NULL;