I'm developing a desktop reminder program using the plyer.notification.notify module. Here's my code:

import time
from plyer import notification
if __name__ == '__main__':
    while True:
        notification.notify(
            title="Please drink water now!!!",
            message="The Institute of Medicine (IOM) recommends that men drink at least 101 ounces of water per day, which is a little under 13 cups",
            app_name="Water",
            app_icon= "C:/Users/sac/PycharmProjects/firstprog/water_reminder/icon.ico",
            timeout=2
        )
        time.sleep(60*60)

The issue I'm facing is that the app_name parameter set to "Water" doesn't take effect. The notification always shows "Python" instead of my custom name. How can I fix this?

This is a common quirk with Plyer's notification module, especially on Windows (where the "Python" label typically pops up). Here are a few reliable fixes to get your custom app name showing up:

1. Switch to win10toast (Windows-specific, straightforward fix) #

Plyer's Windows backend often ignores the app_name parameter. Using win10toast—a library built specifically for Windows toast notifications—will resolve this easily:

First install the library via pip:

pip install win10toast

Then adjust your code like this:

import time
from win10toast import ToastNotifier

if __name__ == '__main__':
    toaster = ToastNotifier()
    while True:
        toaster.show_toast(
            title="Please drink water now!!!",
            msg="The Institute of Medicine (IOM) recommends that men drink at least 101 ounces of water per day, which is a little under 13 cups",
            icon_path="C:/Users/sac/PycharmProjects/firstprog/water_reminder/icon.ico",
            duration=2,
            threaded=True,
            app_id="Water"  # This parameter controls the displayed app name
        )
        time.sleep(60*60)

2. Tweak Plyer's Windows backend (if you want to stick with Plyer) #

If you prefer keeping Plyer, you can modify its internal Windows notification handler:

• Locate the win_notification.py file in your Plyer installation folder (usually in Lib\site-packages\plyer\platforms\win\ within your Python environment).
• Find the line where app_id is defined—it’s likely set to sys.executable or hardcoded to "Python".
• Replace that line with app_id = kwargs.get('app_name', 'Default App') to make it respect your app_name parameter.

3. For Linux/macOS users #

On Linux, Plyer uses notify-send, and app_name maps to the --app-name flag. Ensure you’re running the latest version of Plyer, as older releases had bugs with this parameter. On macOS, first enable notifications for your Python app in System Preferences, then confirm your app_name is correctly passed to Plyer’s macOS backend.

内容的提问来源于stack exchange，提问作者sachin sarma