Replaced NotImplementedError with NotImplemented

Signed-off-by: fazledyn-or <[email protected]>

Author: nydelzaf

SCons/Variables/ListVariable.py

@@ -70,22 +70,22 @@ def __init__(self, initlist=None, allowedElems=None) -> None:
         self.allowedElems = sorted(allowedElems)
 
     def __cmp__(self, other):
-        raise NotImplementedError
+        return NotImplemented
 
     def __eq__(self, other):
-        raise NotImplementedError
+        return NotImplemented
 
     def __ge__(self, other):
-        raise NotImplementedError
+        return NotImplemented
 
     def __gt__(self, other):
-        raise NotImplementedError
+        return NotImplemented
 
     def __le__(self, other):
-        raise NotImplementedError
+        return NotImplemented
 
     def __lt__(self, other):
-        raise NotImplementedError
+        return NotImplemented
 
     def __str__(self) -> str:
         if not len(self):