b

c

any_failed

from prefect import Flow, task
import prefect

class SomeError(ValueError):
    def __init__(self, *args, x):
        super().__init__(*args)
        self.x = x

def st(task, old_state, new_state):
    if new_state.is_failed():
        <http://prefect.context.logger.info|prefect.context.logger.info>(type(new_state.result))
        <http://prefect.context.logger.info|prefect.context.logger.info>(new_state.result.x)
    return new_state

@task(state_handlers=[st])
def abc(x):
    # we want to keep x in state handler
    if x == 2:
        raise SomeError("test error", x=x)
    return x+1

with Flow("..") as flow:
    abc(2)

flow.run()

if len(str) > 0: 
  raise FAIL 
return str

None

raise SKIP