patch 8.2.4526: Vim9: cannot set variables to a null value Commit: https://github.com/vim/vim/commit/8acb9cc6209768ca7ec75c9f7af8c389312ea8d6 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Mar 8 13:18:55 2022 +0000 patch 8.2.4526: Vim9: cannot set variables to a null value Problem: Vim9: cannot set variables to a null value. Solution: Add null_list, null_job, etc.

#!/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