space around assignement

IPython/frontend/html/notebook/handlers.py

@@ -596,7 +596,7 b' class NotebookRootHandler(AuthenticatedHandler):'
             nid = f['notebook_id']
             kid = km.kernel_for_notebook(nid)
             if  kid is not None:
-                f['kernel_id']=kid
+                f['kernel_id'] = kid
         self.finish(jsonapi.dumps(files))
 
     @web.authenticated