fixed TypeError

TheItsNameless · TheItsNameless · commit dd8d7856ce8a · 2022-09-14T15:46:30.000+02:00
diff --git a/its_utils/string_math.py b/its_utils/string_math.py
@@ -9,7 +9,7 @@
 
 
 import re
-from typing import List, Union
+from typing import Dict, List, Union
 
 
 class StringMath:
@@ -27,7 +27,7 @@ class StringMath:
     '''
 
     # define operands
-    operands: dict[str, int] = {
+    operands: Dict[str, int] = {
         '^': 2,
         '*': 1,
         '/': 1,
