Yes,

allow_failure

is still available in Prefect 3.x! It's a useful annotation that allows you to mark specific tasks that can fail without causing the entire flow to fail. Here's how you can use it:

python
from prefect import flow, task
from prefect.utilities.annotations import allow_failure

@task
@allow_failure
def task_that_might_fail():
    raise ValueError("This task failed!")

@task
def subsequent_task():
    print("I will still run!")

@flow
def my_flow():
    task_that_might_fail()
    subsequent_task()

if __name__ == "__main__":
    my_flow()

In this example: 1. We mark the

task_that_might_fail

with the

@allow_failure

decorator 2. Even if

task_that_might_fail

raises an exception, the flow will continue 3.

subsequent_task

will still execute A few important things to note: - The

@allow_failure

decorator should be placed AFTER the

@task

decorator - The task will still show as failed in the UI, but it won't stop the flow execution - This is particularly useful for non-critical tasks where failure is acceptable - You can still access the task's result and handle it appropriately in downstream tasks if needed Alternative approaches for handling task failures in Prefect 3.x include: 1. Using retries with the

retries

parameter in the task decorator 2. Implementing try/except blocks within your tasks 3. Using failure hooks to handle failures gracefully Would you like me to provide examples of any of these alternative approaches as well?