utils/gen: remove _OLD_AST fallback for Python < 3.8

Author: jlu5

src/utils/gen.py

@@ -167,9 +167,6 @@ def saltHash(password, salt=None, hash='sha'):
         hasher = crypt.md5
     return '|'.join([salt, hasher((salt + password).encode('utf8')).hexdigest()])
 
-_OLD_AST = sys.version_info[0:2] < (3, 8)
-"""Whether the AST classes predate the python 3.8 API changes"""
-
 def safeEval(s, namespace=None):
     """Evaluates s, safely.  Useful for turning strings into tuples/lists/etc.
     without unsafely using eval()."""
@@ -181,7 +178,7 @@ def safeEval(s, namespace=None):
     def checkNode(node):
         if node.__class__ is ast.Expr:
             node = node.value
-        if not _OLD_AST and node.__class__ is ast.Constant:
+        if node.__class__ is ast.Constant:
             return True
         elif node.__class__ in (ast.List,
                               ast.Tuple):
@@ -197,13 +194,6 @@ def checkNode(node):
                 return True
             else:
                 return False
-        elif _OLD_AST and node.__class__ in (ast.Num, ast.Str, ast.Bytes):
-            # ast.Num, ast.Str, ast.Bytes are deprecated since Python 3.8
-            # and removed since Python 3.14; replaced by ast.Constant.
-            return True
-        elif _OLD_AST and node.__class__ is ast.NameConstant:
-            # ditto
-            return True
         else:
             return False
     if checkNode(node):