refactor: Replace for with dictionary comprehension

mira/subscription.py

@@ -80,15 +80,11 @@ class SubscriptionManager:
         if not module in self._subscriptions:
             return {}
 
-        tmp = {}
-        for jid in self._subscriptions[module]:
-            if not keyword in self._subscriptions[module][jid]:
-                continue
-
-            data = self._subscriptions[module][jid][keyword]["data"]
-            tmp[jid] = data
-
-        return tmp
+        return {
+            jid: self._subscriptions[module][jid][keyword]["data"]
+            for jid in self._subscriptions[module]
+            if keyword in self._subscriptions[module][jid]
+        }
 
     def get_subscriptions_for_keywords(self, module, keywords):
         """