patch 8.2.0773: switching to raw mode every time ":" is used Commit: https://github.com/vim/vim/commit/3b1f18f785f67c6cd110498c366e4d0c0fe11f27 Author: Bram Moolenaar <Bram@vim.org> Date: Sat May 16 23:15:08 2020 +0200 patch 8.2.0773: switching to raw mode every time ":" is used Problem: Switching to raw mode every time ":" is used. Solution: When executing a shell set cur_tmode to TMODE_UNKNOWN, so that the next time TMODE_RAW is used it is set, but not every time.

#!/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)