plugins\lib\fileconv\dumpers.py unnecessary-pass

The methods validate_data and write of DumperProto should be overridden by subclasses (as discussed with FichteFoll).
Instead of leaving with just pass changed to raise NotImplementedError to verify that they are not mistakenly used.

plugins/lib/fileconv/dumpers.py

@@ -97,7 +97,7 @@ def validate_data(self, data, *args, **kwargs):
                      (lambda x: x is None, False))
                 ]
         """
-        pass
+        raise NotImplementedError
 
     def _validate_data(self, data, funcs):
         """Check for incompatible data recursively.
@@ -178,7 +178,7 @@ def dump(self, data, *args, **kwargs):
 
     def write(self, data, *args, **kwargs):
         """To be implemented."""
-        pass
+        raise NotImplementedError
 
 
 class JSONDumper(DumperProto):