Running out of file descriptors

[samousli]

I believe the file descriptors are left open, or there is a delay in their freeing.

I use pipes in a tight loop and it freezes at around 800~ iterations, I checked via
ulimit -Sn that the maximum allowed number of FDs are 1024. I believe that's the cause.

I may take a look at the issue myself once I find the time, but I'd appreciate your input.

[minrk]

Do you have a code example that does this? I think the exit of the context manager should be cleaning it up, but it might be doing so in a thread that takes a finite amount of time to do the actual cleanup.