Does python's sys.stdin.read() block?

Question

I\'m adapting this Django management command for my own purposes. The script is a simple while-loop daemon that reads from sys.stdin (line 152, in command.handle()

Answer 1

It works OK on my machine (i.e. blocks with negligent CPU usage while it's reading) - can you check it from a simple command line script before? Also, I tested this within Linux, might be different on other platforms.