None for good

Author: oskyk

cashaddress/convert.py

@@ -63,6 +63,8 @@ def _address_type(address_type, version):
 
     @staticmethod
     def from_string(address_string):
+        if not isinstance(address_string, str):
+            raise InvalidAddress('Expected string as input')
         if ':' not in address_string:
             return Address._legacy_string(address_string)
         else: