Update app.py

app.py

@@ -121,7 +121,10 @@ def call_main(purpose, task, history, action_input):
             history += "{}\n".format(line)
             return action_name, action_input, history, task
         else:
-            assert False, "unknown action: {}".format(line)
+            history += "observation: unknown action: {}\n".format(line)
+            #assert False, "unknown action: {}".format(line)
+            return action_name, action_input, history, task
+            
     return "MAIN", None, history, task
 
 
@@ -187,6 +190,7 @@ def run(purpose,history):
             action_name,
             action_input,
         )
+        yield history
         if action_name == "COMPLETE":
             return history