patch 8.2.4919: can add invalid bytes with :spellgood Commit: https://github.com/vim/vim/commit/7c824682d2028432ee082703ef0ab399867a089b Author: Bram Moolenaar <Bram@vim.org> Date: Sun May 8 22:32:58 2022 +0100 patch 8.2.4919: can add invalid bytes with :spellgood Problem: Can add invalid bytes with :spellgood. Solution: Check for a valid word string.

#!/usr/bin/env python
#
# Server that will accept connections from a Vim channel.
# Used by test_channel.vim.
#
# This requires Python 2.6 or later.

from test_channel import main, ThreadedTCPServer
import socket

class ThreadedTCP6Server(ThreadedTCPServer):
    address_family = socket.AF_INET6

if __name__ == "__main__":
    main("::", 0, ThreadedTCP6Server)