Hi, I am trying to implement my own custom IOManager. The way our pipeline is designed currently is that all solids return

Nothing

i.e. the

handle_output()

of the IOManager will always have

obj

as

None

. Thus, the dependencies are specified using

input_defs=[InputDefinition("name_of_previous_solid", Nothing)]

for the next solid. I still want the logic of

load_input

of my custom IOManager to work before we start executing this next solid. But it seems it skips it altogether. Any suggestions on what can be done?

all solids return Nothing  i.e. the handle_output() of the IOManager will always have obj  as None

So there is a difference between

Nothing

which is the absence of an output, ie

handle_output

should not be invoked and the case you are describing where it actually the value

None

I think you should get the behavior you see if you switch away from using

Nothing

and let the inputs/outputs be

Any

or set them maybe to

None

Thanks, it worked