patch 8.2.2307: a shell command in the vimrc causes terminal output Commit: https://github.com/vim/vim/commit/ebbf11c1198b7aec8a1a55f7231ecb4f1a432fa0 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jan 7 14:45:03 2021 +0100 patch 8.2.2307: a shell command in the vimrc causes terminal output Problem: A shell command in the vimrc causes terminal output. Solution: Do not call starttermcap() after a shell command if the termcap wasn't active before.

#!/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