Launching background tasks is slow (just launching, not counting execution time)

[ianb]

If it is a slow loading import that you do not need for, or only need for, the background task, you might look into this:

@lazy_load_imports decorator (for slow loading imports)

A few times I have read about some imports taking a long time to load, causing every server call to be slower than they need to be. The answer to this I have seen a few times is to move the slow import into the function, breaking python convention, and requiring you to remember exactly what to import for each function. It also requires code duplication if the import is needed on more than one function. So I was inspired by the two forum threads above to write a wrapper function that uses a …