QR codes on terminal for passing things to phone…

qr.py

#!/usr/bin/env python3
import sys, pyqrcode

p = ' '.join(sys.argv[1:])
if not p:
    p = sys.stdin.read().strip()

if not p:
    print(f"Usage: {sys.argv[0]} data-for-qr or echo 'data-for-qr' | {sys.argv[0]}")
    sys.exit(1)

q = pyqrcode.create(p)
print(q.terminal())