Have a question about Prefect Context. I Context document under Core Concepts / Execution as well as API Latest / prefect.utilities Context. Both seem to say that users can store items in the context, being careful to not step on any Prefect items, of course, and then retrieve them later. I am attempting to do that but running into trouble. I have created a simple task which receives a "label" to store a time value under. For example, "Start_Flow" would be used to store a time.time() value into the context. That part seems to be working correctly in the task as I can store and then print the stored value. However, in a subsequent task, when I retrieve the "Start_Flow" item from the context, I get a None value. Is there something that I am missing about Context? I am using code similar to the following:

To store:

prefect.context[label] = time.time()

To retrieve:

time_val = prefect.context.get(label)

Hi @Jeff Williams, once the context is initialized, you can’t modify it. The place to store it through the context would be config.toml or you can use the

with

like this

Thanks @Kevin Kho - Those were the two documents that I had been referencing. I got the impression that it was a fluid context that could be utilized in the flow / tasks rather than it being static after initialization. I guess I will have to re-think some things...