A very simple script to get the b64 code for a png image from a given URL.

get_b64_png.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
   get_b64_png.py

   Descp: A very simple script to get the b64 code for a png image from a given
      URL.

   Created on: 26-may-2019

   Copyright 2019 Abel 'Akronix' Serrano Juste <akronix5@gmail.com>

   LICENSE: GPLv3.0
"""

import sys
import requests
import base64

def get_png_from_url(img_url):
   img_res = requests.get(img_url, stream=True)
   status_code = img_res.status_code
   if status_code == 200:
      b64 = base64.encodebytes(img_res.content)
      return "data:image/png;base64,{}".format(str(b64, encoding='utf-8'))


def main():
   string = get_png_from_url(sys.argv[1])
   print('This is the b64 code:')
   print(string)


if __name__ == '__main__':
   main()