How to access inputs in Task callbacks

[carvalhorafael]

I would like to access the value of an input inside a task's callback function.
Let me explain a little better.

Here is my main.py starting the crew and passing a hash (my_hash) as an input:

MyCrew().crew().kickoff(inputs={'my_hash': 'my hash here' )

My crew has several agents and several tasks. Here I will only bring one of them:

# Callback function
def my_callback(output: TaskOutput):
	content = output.raw_output
	print(f"Task output: {content}")
        print(f"My Hash: {my_hash}") # I would like to access the input here

@CrewBase
class MyCrew():

...

        @task
	def my_task(self) -> Task:
		return Task(
			config=self.tasks_config['my_task'],
			agent=self.my_agent(),
			callback=my_callback # Callback function here
		)

...

        @crew
	def crew(self) -> Crew:
		return Crew(
			agents=self.agents,
			tasks=self.tasks,
			process=Process.sequential,
			verbose=2
		)

As you can see in the code, I would like to access the value of my_hash passed as input from the crew inside the task callback function.

How can I do this?

Here is another issue that could benefit from an answer #986

[carvalhorafael]

I found a solution, but I don't know if it's the best approach. I'll share it with you:

In my_crew.py I did:

...

# Callback function receiving my_hash as parameter
def my_callback(output: TaskOutput, my_hash: str):
	content = output.raw_output
	print(f"Task output: {content}")
        print(f"My Hash: {my_hash}")

@CrewBase
class MyCrew():

    # saving the inputs in Class init
    def __init__(self, inputs):
	self.inputs = inputs

    ....

    @task
    def my_task(self) -> Task:
        my_hash = self.inputs['my_hash']
	return Task(
		config=self.tasks_config['my_task'],
		agent=self.my_agent(),
		callback=self.create_callback(my_callback, my_hash)
		)
    
    # Wraps the callback to pass my_hash as parameter
    def create_callback(self, my_callback, my_hash):
	def wrapper(output: TaskOutput):
		return my_callback(output, my_hash)
	return wrapper

    ....

And in the main.py file I did:

my_crew = MyCrew(inputs={'my_hash': 'my hash here'}) # to inputs to be saved at class init
my_crew.crew().kickoff(inputs={'my_hash': 'my hash here'})

As I said, with this approach I was able to pass the hash in input to a callback function.

Any feedback would be greatly appreciated.

[ausangshukla]

This no longer works
File "/home/thimmaiah/work/crew_research_report/src/crew_research_report/main.py", line 15, in run
CrewResearchReportCrew(inputs=dataset).crew().kickoff(inputs=dataset) File "/home/thimmaiah/.cache/pypoetry/virtualenvs/crew-research-report-E4Phcuk8-py3.10/lib/python3.10/site-packages/crewai/project/crew_base.py", line 26, in init
super().init(*args, **kwargs)
TypeError: object.__init__() takes exactly one argument (the instance to initialize)