Open Whatsapp Windows app directly from python program using url

Question

According to this FAQ page of Whatsapp on How to link to WhatsApp from a different app

Using the URL

whatsapp://send?phone=XXXXXXXXXXXXX&text=Hello

can be used to open the Whatsapp app on a Windows PC and perform a custom action.

It does work when it is opened in a browser. The URL opens Whatsapp installed and composes the message(parameter:text) for the given contact(parameter:phone)

I want to open the Whatsapp application directly using python script without the intervention of browser in between

I have tried using request and urlib, but they don't consider it as a valid schema for URL as it does not have a http:// or https:// instead it has whatsapp://.

requests.exceptions.InvalidSchema: No connection adapters were found for 'whatsapp://send'

Is there a library in python that would open the associated applications directly based on the URL.

P.S. I know the page is for Iphone but the link works perfectly on windows browser. Just need to know if that can be used.

Working with Python 3.7.9 on Windows 10