This was a quick and dirty example used for an Upwork proposal requesting generating a QR code and using it to create a composite image.

gen_qr.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import os
from io import BytesIO
import cairosvg
import pyqrcode
from PIL import Image

url = pyqrcode.create('https://github.com/cstrouse/')
url.svg('upwork-qrcode.svg', scale=16, module_color='black')

out = BytesIO()

cairosvg.svg2png(url='upwork-qrcode.svg', write_to=out)

fg = Image.open(out)
bg = Image.open('BaseImage.png')

#print(url.terminal(quiet_zone=1))

offset = ((bg.size[0] - fg.size[0])//2, (bg.size[1] - fg.size[1])//3)

bg.paste(fg, offset, fg.convert('RGBA'))
bg.save('test.png', 'PNG')

os.unlink('upwork-qrcode.svg')

requirements.txt

cairocffi==1.1.0
CairoSVG==2.4.2
cffi==1.13.2
Pillow==6.2.1
pypng==0.0.20
PyQRCode==1.2.1