Automate WeChat Moments Extraction with PyWinAuto and PyAutoGui

Background

Collecting data from WeChat Moments has long been a target for crawlers, but traditional methods require either manual copy‑pasting or complex hook implementations. With the recent support for Moments in the Windows version of WeChat, a simpler automation approach becomes possible.

Required Libraries

psutil – used to obtain the process information of the WeChat desktop client.

pywinauto – provides UI automation capabilities for Windows applications.

Getting the Process ID

import psutil
import pywinauto
from pywinauto.application import Application

PID = 0
for proc in psutil.process_iter():
    try:
        pinfo = proc.as_dict(attrs=['pid', 'name'])
    except psutil.NoSuchProcess:
        pass
    else:
        if 'WeChat.exe' == pinfo['name']:
            PID = pinfo['pid']

The obtained PID is later passed to PyWinAuto to connect to the WeChat process.

Connecting to WeChat with PyWinAuto

app = Application(backend='uia').connect(process=PID)

Opening the Moments Window

win = app['微信']
pyq_btn = win.child_window(title="朋友圈", control_type="Button")
cords = pyq_btn.rectangle()
pywinauto.mouse.click(button='left', coords=(cords.left+10, cords.top+10))

The above code opens the Moments window in the WeChat desktop client.

Inspecting the UI Tree

Use the .dump_tree() method to print the component hierarchy of the Moments window, which helps locate the controls that contain the data you need.

Example screenshot of the Moments UI after automation:

Extracting Content

By locating the Edit component within the UI tree, you can retrieve the text of a specific Moment post.

Conclusion

Using PyWinAuto together with PyAutoGui offers a straightforward and effective way to automate the WeChat desktop client, open the Moments window, and extract the desired data without the need for complex hooking or manual copying.