Automate Midnight WeChat Messages with Python, pyautogui, and APScheduler

The article demonstrates a Python solution for automatically sending a WeChat message at 12 AM, fulfilling a boyfriend's promise to remind his girlfriend to sleep.

Installation and Import

Two required modules are apscheduler and pyautogui . Install them with:

pip install apscheduler
pip install pyautogui

Import the necessary packages:

import pyautogui
from datetime import datetime
from apscheduler.schedulers.blocking import BlockingScheduler

Using pyautogui for Mouse and Keyboard Automation

Set a pause between actions to mimic human speed: pyautogui.PAUSE = 1 Obtain the screen coordinates of the WeChat task‑bar icon and the message input box:

print(pyautogui.position())  # e.g., Point(x=148, y=879)
icon_position = pyautogui.position()
print(pyautogui.position())  # e.g., Point(x=174, y=751)
entry_position = pyautogui.position()

Move the cursor to each point and click:

pyautogui.moveTo(icon_position, duration=2)
pyautogui.click(icon_position)
pyautogui.moveTo(entry_position, duration=2)
pyautogui.click(entry_position)

Enter text either by passing a list of characters or a string. For Chinese input, rely on the active input method:

pyautogui.typewrite([*list('zhengzai '), *list('jinxing '), 'shift', *list('pyautogui'), 'shift', *list('shiyan '), 'enter'], 0.1)

For longer messages, copy the text to the clipboard and paste it:

import pyperclip
pyperclip.copy('正在进行发中文试验，看到请忽略，更不要骂傻逼')
pyautogui.hotkey('ctrl', 'v')
pyautogui.press('enter')

Scheduling with APScheduler

APScheduler allows you to schedule the above automation to run at a specific date and time. Create a blocking scheduler, add the job, and start it:

scheduler = BlockingScheduler()
scheduler.add_job(main, 'date', run_date=datetime(2021, 8, 18, 24, 0, 0))
scheduler.start()

Complete Script

import pyautogui
import pyperclip
from datetime import datetime
from apscheduler.schedulers.blocking import BlockingScheduler

def main():
    pyautogui.PAUSE = 0
    icon_position = pyautogui.Point(x=148, y=879)  # task‑bar icon
    entry_position = pyautogui.Point(x=174, y=751)  # message box
    pyautogui.moveTo(icon_position, duration=1)
    pyautogui.click(icon_position)
    pyautogui.moveTo(entry_position, duration=0.7)
    pyautogui.click(entry_position)
    pyperclip.copy('快去睡觉')
    pyautogui.hotkey('ctrl', 'v')
    pyautogui.press('enter')
    pyperclip.copy('笨猪')
    pyautogui.hotkey('ctrl', 'v')
    pyautogui.press('enter')

scheduler = BlockingScheduler()
scheduler.add_job(main, 'date', run_date=datetime(2021, 8, 18, 24, 0, 0))
scheduler.start()

Running the script sends the predefined messages to the girlfriend at midnight. The author reports that the next morning the computer was still on, his mother questioned the late‑night activity, but the girlfriend received the reminder as intended.