Very good question! The reason is that I found that it better matches what you use them for in Celery, since they are used e.g. to forward results from the pre

Very good question! The reason is that I found that it better matches what you use them for in Celery, since they are used e.g. to forward results from the previous tasks to a callback. Often you have a signatures like: def blur_image(image, amount=1), where the partial is used like render_image.s(file) | blur_image.s() functools.partial is usually used the other way; it's most common to create functools.partials where the first argument is satisfied.