Prototype of a hook for urlwatch to retrieve releases from GitHub via official API

hooks.py

# Copyright (c) 2018 Karol Babioch <karol@babioch.de>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# This is a very basic hook for urlwatch [1], that will retrieve
# information about releases from a GitHub repository. An effort is
# ongoing [2] to include this functionality into the upstream project.
# 
# To monitor a repostory, add the following to your urls.yml (e.g. by
# invoking `urlwatch --edit`:
#
#    ---
#    kind: github
#    repo: thp/urlwatch
#    ---
#
# This will retrieve the release information via the official GitHub
# API [3].
#
# NOTE: The public API is rate limited. Without an authorization
# token you can only perform 60 requests per hour. You can create
# a token at [4]. This token only requires the `public_repo`
# permission. Put it into the `__token__` attribute.

# [1]: https://github.com/thp/urlwatch
# [2]: https://github.com/thp/urlwatch/issues/246
# [3]: https://developer.github.com/
# [4]: https://github.com/settings/tokens

import requests
from urlwatch import jobs

class GitHubJob(jobs.Job):

		__API__ = 'https://api.github.com'
		
		# FILL IN YOUR API token here
		# ->  https://github.com/settings/tokens
		# only public_repo permission is required
		__token__ = ''

		__kind__ = 'github'
		__required__ = ('repo',)

		def get_location(self):
			return '{} (GitHub)'.format(self.repo)
		
		def retrieve(self, job_state):
			headers = {}
			if self.__token__:
				headers['Authorization'] = 'token {}'.format(self.__token__)
 			r = requests.get('{}/repos/{}/releases'.format(self.__API__, self.repo), headers=headers)¬
 			r.raise_for_status()¬                                                    
			return r.text¬