To run this:

• pip3 install -r requirements.txt

• If you want to generate a QR code, run generate_qrcode.py.

  For instance, if you want to generate a QR code that contains the data: "https://www.thepythoncode.com" to a file named site.png, you can:

  python generate_qrcode.py https://www.thepythoncode.com site.png
  

• If you want to read a QR code, run read_qrcode.py.

  For instance, if you want to read a QR code from a file named site.png, you can run:

  python read_qrcode.py site.png
  

  A new window will appear that contains the QR code surrounded by a blue square. and outputs:

  QRCode data:
  https://www.thepythoncode.com
  

• If you want to read QR codes live using your cam, just run:

  python read_qrcode_live.py
  

If you want to know how these are created, head to this tutorial: How to Generate and Read QR Code in Python.