patch 8.2.1140: Vim9: return type of extend() is any Commit: https://github.com/vim/vim/commit/b3c019cbc32e2e9250ac668bf77d61ebd89c13f2 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 5 20:08:39 2020 +0200 patch 8.2.1140: Vim9: return type of extend() is any Problem: Vim9: return type of extend() is any. Solution: Use type of the argument.

#!/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