Create Unique Task Decorator

[stephengolub]

The convention of declaring task.unique(‘function_name’) seems a bit non-pythonic.

I feel like it might be better to create a @unique decorator that ensures that the method it wraps is only run once.

Could even add a param that will control what that means:

• @unique or @unique(“restart”) would kill the previous run
• @unique(“queue”) would enqueue subsequent calls.

I’m sure there are more cases, just spit-balling.

[craigbarratt]

Thanks for the great suggestion - I totally missed the idea of making unique a decorator. That's much more natural. I don't think there are many cases where the task.unique() function would be in the middle of some code, but I'll keep it around just in case that's needed. Let me think about the specific decorator name and arguments. I'm working on supporting Jupyter as a pyscript frontend currently, and I'll get to this after that.

[craigbarratt]

I created a wiki with some roadmap ideas, and I added this idea to that list. So closing this issue.

[craigbarratt]

Just did commit 59a5461 that adds @task_unique as a new decorator. Its arguments are the same as task.unique().