python 3 updates

- Fix super() calls for python 3
- No need to inherit objects.
- No need for u at the start of strings
- Tidied up some brackets and f-strings too

web/pgadmin/tools/sqleditor/command.py

@@ -75,7 +75,7 @@ class ObjectRegistry(ABCMeta):
         )
 
 
-class BaseCommand(object, metaclass=ObjectRegistry):
+class BaseCommand(metaclass=ObjectRegistry):
     """
     class BaseCommand
 
@@ -125,7 +125,7 @@ class BaseCommand(object, metaclass=ObjectRegistry):
         pass
 
 
-class SQLFilter(object):
+class SQLFilter():
     """
     class SQLFilter
 
@@ -159,9 +159,9 @@ class SQLFilter(object):
             **kwargs : N number of parameters
         """
         # Save the server id and database id, namespace id, object id
-        assert ('sid' in kwargs)
-        assert ('did' in kwargs)
-        assert ('obj_id' in kwargs)
+        assert 'sid' in kwargs
+        assert 'did' in kwargs
+        assert 'obj_id' in kwargs
 
         self.sid = kwargs['sid']
         self.did = kwargs['did']
@@ -305,7 +305,7 @@ class SQLFilter(object):
         return status, result
 
 
-class FetchedRowTracker(object):
+class FetchedRowTracker():
     """
     Keeps track of fetched row count.
     """
@@ -322,7 +322,7 @@ class FetchedRowTracker(object):
 
 class GridCommand(BaseCommand, SQLFilter, FetchedRowTracker):
     """
-    class GridCommand(object)
+    class GridCommand()
 
         It is a base class for different object type used by data grid.
         A different object type must implement this to expose abstract methods.
@@ -458,7 +458,7 @@ class TableCommand(GridCommand):
         """
 
         # call base class init to fetch the table name
-        super(TableCommand, self).__init__(**kwargs)
+        super().__init__(**kwargs)
 
         # Set the default sorting on table data by primary key if user
         # preference value is set
@@ -703,7 +703,7 @@ class ViewCommand(GridCommand):
         """
 
         # call base class init to fetch the table name
-        super(ViewCommand, self).__init__(**kwargs)
+        super().__init__(**kwargs)
 
     def get_sql(self, default_conn=None):
         """
@@ -764,7 +764,7 @@ class ForeignTableCommand(GridCommand):
         """
 
         # call base class init to fetch the table name
-        super(ForeignTableCommand, self).__init__(**kwargs)
+        super().__init__(**kwargs)
 
     def get_sql(self, default_conn=None):
         """
@@ -815,7 +815,7 @@ class CatalogCommand(GridCommand):
         """
 
         # call base class init to fetch the table name
-        super(CatalogCommand, self).__init__(**kwargs)
+        super().__init__(**kwargs)
 
     def get_sql(self, default_conn=None):
         """