Drain or discard a generator without looping?

Question

In an exception handler for a CSP style process, I need to read and discard the entire contents of a channel in order to allow other processes that are blocking to send to i

Answer 1

I've started using a deque that I can reuse if need be:

do_all = deque(maxlen=0).extend

Then I can consume generator expressions using:

do_all(poly.draw() for poly in model.polys)