Automating WeChat Message Sending at Midnight with Python, pyautogui, and APScheduler

This article shows how to create a Python program that automatically sends a WeChat message at midnight, fulfilling a boyfriend’s duty to remind his girlfriend to sleep.

Installation and import

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

<code>pip install apscheduler</code><code>pip install pyautogui</code>

Import the libraries:

<code>import pyautogui</code><code>from datetime import datetime</code><code>from apscheduler.schedulers.blocking import BlockingScheduler  # blocks the current process</code><code># For a background scheduler you could use:
# from apscheduler.schedulers.background import BackgroundScheduler</code>

pyautogui basics

Set a pause between actions:

<code>pyautogui.PAUSE = 1  # seconds</code>

Obtain the screen coordinates of the WeChat task‑bar icon and the chat input box:

<code>print(pyautogui.position())  # e.g., Point(x=148, y=879)</code><code>icon_position = pyautogui.position()</code>

<code>print(pyautogui.position())  # e.g., Point(x=174, y=751)</code><code>entry_position = pyautogui.position()</code>

Click those positions to focus WeChat:

<code>pyautogui.click(icon_position)  # click the icon</code><code>pyautogui.click(entry_position)  # click the input box</code>

Type text using either a list of keys or a plain string (note that Chinese characters must be entered via the input method):

pyautogui.typewrite(['o', 'n', 'e', 'enter'])

pyautogui.typewrite('You can type multiple letters in this way')

For more complex Chinese input you can combine lists and special keys, for example:

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

To make the automation look more human‑like, move the mouse with a duration before clicking:

<code>pyautogui.moveTo(icon_position, duration=2)</code><code>pyautogui.click(icon_position)</code><code>pyautogui.moveTo(entry_position, duration=2)</code><code>pyautogui.click(entry_position)</code>

If the message is long, you can copy it to the clipboard and paste:

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

Scheduling with APScheduler

APScheduler allows you to schedule the above automation to run at a specific time:

<code>scheduler = BlockingScheduler()  # instantiate a scheduler</code><code>scheduler.add_job(main, 'date', run_date=datetime(2021, 8, 18, 24, 0, 0))  # run once at the given datetime</code><code>scheduler.start()</code>

The main function contains the pyautogui actions shown earlier.

Full script

<code>import pyautogui</code><code>import pyperclip</code><code>from datetime import datetime</code><code>from apscheduler.schedulers.blocking import BlockingScheduler</code><code>def main():</code><code>    pyautogui.PAUSE = 0</code><code>    icon_position = pyautogui.Point(x=148, y=879)  # task‑bar icon</code><code>    entry_position = pyautogui.Point(x=174, y=751)  # input box</code><code>    pyautogui.moveTo(icon_position, duration=1)</code><code>    pyautogui.click(icon_position)</code><code>    pyautogui.moveTo(entry_position, duration=0.7)</code><code>    pyautogui.click(entry_position)</code><code>    pyperclip.copy('快去睡觉')</code><code>    pyautogui.hotkey('ctrl', 'v')</code><code>    pyautogui.press('enter')</code><code>    pyperclip.copy('笨猪')</code><code>    pyautogui.hotkey('ctrl', 'v')</code><code>    pyautogui.press('enter')</code><code>scheduler = BlockingScheduler()</code><code>scheduler.add_job(main, 'date', run_date=datetime(2021, 8, 18, 24, 0, 0))</code><code>scheduler.start()</code>

Running this script will automatically send the prepared messages to the specified WeChat contact at midnight.

Result: The author’s mother scolded him for leaving the computer on at 12 am, but the girlfriend received the reminder, completing the intended task.