Need to install GTK bundle for windows or linux or mac
For windows: Download the GTK runtime (which includes Cairo) from: 👉 https://github.com/tschoonj/GTK-for-Windows-Runtime-Environment-Installer/releases
Install it. It usually goes to: C:\Program Files\GTK3-Runtime Win64\
Add the bin folder to your system's PATH: C:\Program Files\GTK3-Runtime Win64\bin
Restart your terminal or IDE and re-run your script.
If added to path but restarting terminal does not help, restart PC