is it possible to have a weekly asset have its partitions named as '20230618_20230624', i.e. including the date range?

Hi Giovanni, I think you can achieve this by passing the

fmt

parameter of

WeeklyPartitionsDefinition

. This parameter is passed to

datetime.strptime

.

but how do I differentiate partition start and end dates in the formatting string?

Ah you know what I’m looking at the code now and I can see you’re right-- we’re using the same

fmt

parameter for

strptime

and

strftime

. So I don’t think this is possible at present, but I think it is functionality that could be added (an optional partition key formatting parameter), though unlikely to be prioritized. If you’re interested, would you mind opening a GH issue for it? https://github.com/dagster-io/dagster/issues

sure! i'll open an issue thank you

“partition key” is the right name-- “asset key” is a separate concept. Though rereading your messages, if you only care about the name under which it is saved on disk, you can do this with a custom IO manager.

got it! thank you