First, change your directory to the local copy of the file on a Terminal Window.
install python and the qrcode module (using pip install qrcode[pil])
Then, run: $ python3 -i nameoffile to run your code
The software was created using qrcode module, so all credit goes to all amazing people working at (Readme is giving me a hard time, here is the link: https://pypi.org/project/qrcode/)