Linux / Python QR code generation

Command-line QR code generation is enabled on Linux by:

apt install qrencode

Usage

This example is for 300 dpi with Medium error correction, making a PNG image.

qrencode -s10 -d 300 -lM https://example.invalid -o qr-example.png

Notes

The QtQR GUI program allows easy generation of QR codes.

apt install qtqr