patch 8.2.3994: Vim9: extend() complains about type when it was not declared Commit: https://github.com/vim/vim/commit/ad8f2485856eadb931ebd1f633ca366a40e415b8 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jan 3 16:52:28 2022 +0000 patch 8.2.3994: Vim9: extend() complains about type when it was not declared Problem: Vim9: extend() complains about the type even when it was not declared. Solution: Only check the list or dict type when it was declared.

#!/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