github-badge-2_pythonanywhere_example.py

import os
import subprocess
import datetime

def file2str(path):
	with open(path, 'r') as file:
		return file.read().strip()

def update_badge_html():
    command = 'python3 /home/path/to/github-badge-2/src/generate_badge.py'
    process = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE)
    process.wait()

def application(environ, start_response):
    if environ.get('PATH_INFO') == '/':
        status = '200 OK'

        b_path = "/home/path/to/github-badge-2/src/badge.html"
        if os.path.exists(b_path):
            b_age = datetime.datetime.now() - datetime.datetime.fromtimestamp(os.path.getmtime(b_path))

            # update/regenerate if a 1day+ old
            if (b_age.days >= 1):
                update_badge_html()
        else:
            # non existant yet
            update_badge_html()

        badge_html = file2str(b_path)
        content = badge_html
    else:
        status = '404 NOT FOUND'
        content = 'Page not found.'
    response_headers = [('Content-Type', 'text/html'), ('Content-Length', str(len(content)))]
    start_response(status, response_headers)
    yield content.encode('utf8')