Python: Flushing while printing

Since Python 3.3, you can force the normal print() function to flush without the need to use sys.stdout.flush(); just set the flush keyword argument to True. From the documentation:

print(*objects, sep=' ', end='', file=sys.stdout, flush=False)

Whether output is buffered is usually determined by file, but if the flush keyword argument is true, the stream is forcibly flushed.

Via SO.