Python Futures And Tuple Unpacking

What is an elagant/idiomatic way to achieve something like tuple unpacking with futures? I have code like a, b, c = f(x) y = g(a, b) z = h(y, c) and I would like to convert it to

Solution 1:

A quick glance at:

https://docs.python.org/3/library/concurrent.futures.html#concurrent.futures.Future

suggests that you'll have to do something like

afuture = ex.submit(f, x)
a,b,c = afuture.result()
...

submit returns a Future object, not the result of running f(x).

This SO answer indicates that chaining futures is not trivial:

How to chain futures in a non-blocking manner? That is, how to use one future as an input in another future without blocking?