revert Compare support

Author: skirpichev

Lib/ast.py

@@ -123,29 +123,6 @@ def _convert_literal(node, omit_validation=False):
             return left + right
         else:
             return left - right
-    if (isinstance(node, Compare)
-        and isinstance(node.left, Constant)
-        and type(left := _convert_literal(node.left)) in (int, float, str)
-        and len(node.ops) == 1
-        and isinstance(op := node.ops[0], (Eq, NotEq, Lt, LtE, Gt, GtE))
-        and len(node.comparators) == 1
-        and isinstance(node.comparators[0], Constant)
-        and type(right := node.comparators[0].value) in (int, float, str)
-        and (type(left) == type(right) or str not in [type(left), type(right)])
-    ):
-        if isinstance(op, Eq):
-            return left == right
-        elif isinstance(op, NotEq):
-            return left != right
-        elif isinstance(op, Lt):
-            return left < right
-        elif isinstance(op, LtE):
-            return left <= right
-        elif isinstance(op, Gt):
-            return left > right
-        else:
-            return left >= right
-
     msg = "malformed node or string"
     if lno := getattr(node, 'lineno', None):
         msg += f' on line {lno}'

Lib/test/test_ast/test_ast.py

@@ -2043,12 +2043,6 @@ def test_literal_eval(self):
         self.assertEqual(ast.literal_eval('+3.25'), 3.25)
         self.assertEqual(ast.literal_eval('-3.25'), -3.25)
         self.assertEqual(repr(ast.literal_eval('-0.0')), '-0.0')
-        self.assertEqual(ast.literal_eval('1 == 2'), False)
-        self.assertEqual(ast.literal_eval('1 != 2'), True)
-        self.assertEqual(ast.literal_eval('1 < 2'), True)
-        self.assertEqual(ast.literal_eval('1 <= 2'), True)
-        self.assertEqual(ast.literal_eval('1 >= 2'), False)
-        self.assertEqual(ast.literal_eval('1 > 2'), False)
         self.assertRaises(ValueError, ast.literal_eval, '++6')
         self.assertRaises(ValueError, ast.literal_eval, '+True')
         self.assertRaises(ValueError, ast.literal_eval, '2+3')

Lib/test/test_inspect/test_inspect.py

@@ -6304,9 +6304,9 @@ def test_operator_module_has_signatures(self):
         self._test_module_has_signatures(operator)
 
     def test_os_module_has_signatures(self):
-        unsupported_signature = {'utime'}
+        unsupported_signature = {'chmod', 'utime'}
         unsupported_signature |= {name for name in
-            ['get_terminal_size', 'register_at_fork', 'startfile']
+            ['get_terminal_size', 'link', 'register_at_fork', 'startfile']
             if hasattr(os, name)}
         self._test_module_has_signatures(os, unsupported_signature=unsupported_signature)