Formating, fix ruff errors

core/metadb/xaal/metadb/app.py

@@ -106,7 +106,7 @@ class MetaDB(object):
 
         if dev:
             # if _map is empty, remove the device
-            if _map == None:
+            if _map is None:
                 # self.cfg['devices'].pop(str(_device))
                 dev = {}
                 self.dirty = True
@@ -116,15 +116,15 @@ class MetaDB(object):
                 updated.update({k:_map[k]})
                 self.dirty = True
                 # remove item if empty
-                if _map[k] == None:
+                if _map[k] is None:
                     dev.pop(k)
                 else:
                     dev.update({k:_map[k]})
                 
-        elif _map != None:
+        elif _map is not None:
             updated = {}
             for k, v in _map.items():
-                if v != None:
+                if v is not None:
                    updated.update({k:v})
             self.cfg['devices'][str(_device)]=updated
             self.dirty = True