Type into (Qemu) VNC session

vnc_type.py

#!/usr/bin/env -S uv run --with vncdotool
# /// script
# requires-python = ">=3.12"
# dependencies = ["vncdotool"]
# ///
"""Type stdin text into a VNC session.

Usage:
  echo "hello" | uv run vnc_type.py [host] [options]
  pbpaste  | uv run vnc_type.py 127.0.0.1:9 --caps

  host format: host:display (e.g. 127.0.0.1:9) or host::port (e.g. 127.0.0.1::5909)
  Default: 127.0.0.1::5909

Options:
  --caps        Invert shift key up/down (use when caps lock is stuck)
"""
import sys
import argparse
import time
import os
from vncdotool import api

DELAY = 0.02

SHIFT_MAP = {
    '~': '`', '!': '1', '@': '2', '#': '3', '$': '4', '%': '5',
    '^': '6', '&': '7', '*': '8', '(': '9', ')': '0', '_': '-',
    '+': '=', '{': '[', '}': ']', '|': '\\', ':': ';', '"': "'",
    '<': ',', '>': '.', '?': '/',
}

SPECIAL = {
    '\n': 'enter',
    '\t': 'tab',
    ' ': 'space',
}

parser = argparse.ArgumentParser(description="Type stdin into VNC")
parser.add_argument("host", nargs="?", default="127.0.0.1::5909",
                    help="host:display or host::port (default: 127.0.0.1::5909)")
parser.add_argument("--caps", action="store_true",
                    help="Invert shift key up/down (use when caps lock is stuck)")
args = parser.parse_args()

text = sys.stdin.read()

client = api.connect(args.host)

# reset modifier keys
client.keyUp('shift')
client.keyUp('ctrl')
client.keyUp('alt')
time.sleep(0.05)


def shift_on():
    if args.caps:
        client.keyUp('shift')
    else:
        client.keyDown('shift')


def shift_off():
    if args.caps:
        client.keyDown('shift')
    else:
        client.keyUp('shift')


for ch in text:
    if ch in SPECIAL:
        client.keyPress(SPECIAL[ch])
    elif ch == '\r':
        continue
    elif ch in SHIFT_MAP:
        shift_on()
        time.sleep(DELAY)
        client.keyPress(SHIFT_MAP[ch])
        time.sleep(DELAY)
        shift_off()
    elif ch.isupper():
        shift_on()
        time.sleep(DELAY)
        client.keyPress(ch)
        time.sleep(DELAY)
        shift_off()
    else:
        client.keyPress(ch)
    time.sleep(DELAY)

client.disconnect()
os._exit(0)

If typefile is working fine for you, use that!