Fix TypeError: 'cmp' is an invalid keyword argument for this function

Author: strk

python/plugins/db_manager/db_plugins/postgis/connector.py

@@ -331,7 +331,7 @@ def getTables(self, schema=None, add_sys_tables=False):
                 items.append(item)
         self._close_cursor(c)
 
-        return sorted(items, cmp=lambda x, y: cmp((x[2], x[1]), (y[2], y[1])))
+        return sorted(items, key=cmp_to_key(lambda x, y: (x[1] > y[1]) - (x[1] < y[1])))
 
     def getVectorTables(self, schema=None):
         """ get list of table with a geometry column