patch 8.2.3376: Vim9: no warning that "@r" does not do anything Commit: https://github.com/vim/vim/commit/4799cef85ce43e26f5022290b41a7c85bbab8cad Author: Bram Moolenaar <Bram@vim.org> Date: Wed Aug 25 22:37:36 2021 +0200 patch 8.2.3376: Vim9: no warning that "@r" does not do anything Problem: Vim9: no warning that "@r" does not do anything. Solution: Give a "no effect" error. (closes https://github.com/vim/vim/issues/8779)

#!/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