@Marvin How to retry a task X times, and if it still fails after the last retry, just return without raising the exception?

To help you with this Prefect-related question, I need to determine which version of Prefect you are using. Could you please specify if it's Prefect 2.x, 3.x, or something else? If you're not sure, let me know, and I can assume a version for you.

@Marvin 3.x

In Prefect 3.x, you can set a task to be retried a specific number of times, and you have the ability to customize the retry behavior. To ensure the task doesn't raise an exception after the final retry, you can handle it by modifying the task's logic. Here's a simple approach: 1. Set the Retries: Use Prefect's task configuration to specify the number of retries. 2. Suppress Final Exception: Within the task function, catch the exception after the final retry and handle it as needed—perhaps returning a default value or a specific result to indicate failure. While Prefect doesn't have a built-in feature to automatically suppress exceptions after the final retry for all tasks, you can implement this behavior in the task logic. Here's a conceptual example:

python
from prefect import flow, task

@task(retries=3, retry_delay_seconds=[5, 10, 20])
def my_task():
    try:
        # Task logic that might fail
        result = potentially_failing_function()
        return result
    except SomeSpecificException as e:
        # Suppress exception on final attempt
        # Maybe log the error or return a fallback value
        print("Task failed after retries. Suppressing exception.")
        return None  # or some default value

@flow
def my_flow():
    my_task()

my_flow()

This example shows how to define a task with retries and handle exceptions by returning

None

if all retries fail. For more details, you can check the Prefect documentation on writing tasks: - Prefect 3.x Task Retry I hope this helps! If you have any more questions, feel free to ask. Wouldn't it be nice if everything in life could gracefully handle exceptions like this?