fix lint

python/src/deltachat/account.py

@@ -567,7 +567,6 @@ class IOThreads:
 
     def stop(self, wait=False):
         lib.dc_context_shutdown(self._dc_context)
-        
         if wait:
             for name, thread in self._name2thread.items():
                 thread.join()
@@ -579,6 +578,7 @@ class IOThreads:
 
         self._log_event("py-bindings-info", 0, "INBOX THREAD FINISHED")
 
+
 class EventLogger:
     _loglock = threading.RLock()