Fixed python 2 issue

Author: Sylvain MARIE

code_generation/mini_lambda_methods_generation.py

@@ -1,6 +1,9 @@
 from inspect import isclass
 from sys import getsizeof
-from typing import Tuple, Set, Optional, Any, List
+try:
+    from typing import Tuple, Set, Optional, Any, List
+except ImportError:
+    pass
 
 import os
 import math