patch 8.0.1246: popup test has an arbitrary delay commit https://github.com/vim/vim/commit/b315876efa7865486b9cc160d43f0ead47e58d6c Author: Bram Moolenaar <Bram@vim.org> Date: Thu Nov 2 17:50:14 2017 +0100 patch 8.0.1246: popup test has an arbitrary delay Problem: Popup test has an arbitrary delay. Solution: Wait for the ruler to show. (James McCoy)

#!/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