Breaking changes in the new release-no ConsoleInputChannel?

Rasa Open Source
1

It seems like the latest release of Rasa Core has some breaking changes. First it seems like the Agent api has changed:

raise Exception("Passing `featurizer` and `max_history` " Exception: Passing `featurizer` and `max_history` to `agent.train(...)` is not supported anymore. Pass appropriate featurizer directly to the policy instead.

Also there is no ConsoleInputChannel anymore? I was trying to run the small talk example (https://github.com/rahul051296/small-talk-rasa-stack) I found on one of the rasa-github issues I get the following error.

Traceback (most recent call last):
  File "bot.py", line 9, in <module>
    from rasa_core.channels.console import ConsoleInputChannel
ImportError: cannot import name 'ConsoleInputChannel'

When I do dig into rasa_core.channels.console.py the ConsoleInputChannel class seems to have been removed. The cmdline option in run.py seems to be the default which seems to call a RestInputChannel. I don’t see any documentation regarding this, and/or migrating from ConsoleInputChannel to RestInputChannel.

Best, Aanchan

2

Did you read migration guide: http://www.rasa.com/docs/core/migrations/?

1 Like
3

The ConsoleOutputChannel migration guide is missing from the current docs, but we just pushed out 0.11.2, which means the docs will be updated in a few minutes

4

Could you maybe explain how to use it in a python script?

Either use the run script to run your bot on the cmdline, or adapt the serve_application function to run from a python script.

I’m not sure how to adapt my code at the moment.

def run(serve_forever=True):
interpreter = RasaNLUInterpreter("./models/nlu/default/Assistantv1")
agent = Agent.load("./models/dialogue", interpreter=interpreter)

if serve_forever:
	agent.handle_channels(ConsoleInputChannel())
return agent
5

Someone’s posted a solution here

1 Like
6

Thank you!!!

1 Like
7

@Sam Thanks for that. It was a bit irritating that ConsoleInputChannel was missing, and wasn’t mentioned in the migration guide. I’ll try the link you posted. Appreciate it.

8

It’s in the migration guide: http://rasa.com/docs/core/migrations/

9

Thanks Sam, this works perfectly…

10

Hi @andre ,

can you please post the complete modified code , as i am very new to python, I have successfully created the nlu model but facing issue with core,

Rasa_nlu = 0.15.1 Rasa_core = 0.14.1

Thank you