Way to unblock sys.stdin.readline() call

[Terry Reedy]

joamag wrote:

> Is there any possible way to unblock the sys.stdin.readline() call
> from a different thread.

If you want the thread to do something 'else' when no input is 
available, would this work?  Put readline in a thread that puts lines in 
a q=queue.Quese().  Then
try:
     l=q.ge_nowait
     <process l>
except queue.Empty
     <whatever without l>