patch 8.1.0449: when 'rnu' is set folded lines are not displayed correctly commit https://github.com/vim/vim/commit/7701f308565fdc7b5096a6597d9c3b63de0bbcec Author: Bram Moolenaar <Bram@vim.org> Date: Tue Oct 2 21:20:32 2018 +0200 patch 8.1.0449: when 'rnu' is set folded lines are not displayed correctly Problem: When 'rnu' is set folded lines are not displayed correctly. (Vitaly Yashin) Solution: When only redrawing line numbers do draw folded lines. (closes #3484)

#!/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