patch 8.1.0777: Win32: using pipes for channel does not work well commit https://github.com/vim/vim/commit/b091f30bf38eacb31b9d8c97c82c7e0af9866301 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jan 19 14:37:00 2019 +0100 patch 8.1.0777: Win32: using pipes for channel does not work well Problem: Win32: using pipes for channel does not work well. Solution: Use a larger buffer and handle overlaps. (Yasuhiro Matsumoto, closes #3782)

#!/usr/bin/python
#
# Program that writes a number to stdout repeatedly
#
# This requires Python 2.6 or later.

from __future__ import print_function
import sys
import time

if __name__ == "__main__":

    done = 0
    while done < 10:
        done = done + 1
        print(done)
        sys.stdout.flush()
        time.sleep(0.05)  # sleep 50 msec