```from prefect import Task def learning task old state new

Question

```from prefect import Task def learning task old state new state if isinstance new state state Success print Yay return new state class MyTask Task def run self return hello task 1 = MyTask flow = Flow name= my flow tasks= task 1 state handlers= learning state = flow run ```

Zanie · Answer

Hi James With the addition of `from prefect engine import state` and `from prefect import Flow` this runs as expected

Zanie · Answer

``` 2021 01 22 13 30 33 INFO prefect FlowRunner | Beginning Flow run for my flow Users michaeladkins prefect core src prefect engine flow runner py 235 UserWarning prefect engine executors LocalExecutor has been moved to `prefect executors LocalExecutor` please update your imports executor = prefect engine get default executor class 2021 01 22 13 30 33 DEBUG prefect FlowRunner | Using executor type LocalExecutor 2021 01 22 13 30 33 DEBUG prefect FlowRunner | Flow my flow Handling state change from Scheduled to Running 2021 01 22 13 30 33 INFO prefect TaskRunner | Task MyTask Starting task run 2021 01 22 13 30 33 DEBUG prefect TaskRunner | Task MyTask Handling state change from Pending to Running 2021 01 22 13 30 33 DEBUG prefect TaskRunner | Task MyTask Calling task run method 2021 01 22 13 30 33 DEBUG prefect TaskRunner | Task MyTask Handling state change from Running to Success 2021 01 22 13 30 33 INFO prefect TaskRunner | Task MyTask Finished task run for task with final state Success 2021 01 22 13 30 33 INFO prefect FlowRunner | Flow run SUCCESS all reference tasks succeeded 2021 01 22 13 30 33 DEBUG prefect FlowRunner | Flow my flow Handling state change from Running to Success Yay```

Zanie · Answer

Although note you are overriding your global `state` variable which should contain the Prefect states with the result of your flow

James Phoenix · Answer

Prefect thanks < Zanie>