Print a file's forks

get_file_forks.py

#!/usr/bin/env python

# INSTALL: pip install github3.py
# USAGE: ./get_file_forks.py AllenDowney/DataScience age_lm.py
# Set HOMEBREW_GITHUB_API_TOKEN to avoid Github's rate limit. 

import os
import sys
import github3


GITHUB_API_TOKEN = os.environ.get('HOMEBREW_GITHUB_API_TOKEN')
if GITHUB_API_TOKEN:
    gh = github3.login(token=GITHUB_API_TOKEN)
else:
    gh = github3


def get_file_forks(user, repo, path):
    repo = gh.repository(user, repo)
    return ((fork.owner, content and content.decoded) for fork in repo.iter_forks() for content in [fork.contents(path)])


if __name__ == '__main__':
    if 1 < len(sys.argv) <= 3:
        user, repo, path = '/'.join(sys.argv[1:]).split('/', 3)
    else:
        print >> sys.stderr, "USAGE: ./get_file_forks.py user repo path"
        print >> sys.stderr, "USAGE: ./get_file_forks.py user/repo path"
        print >> sys.stderr, "USAGE: ./get_file_forks.py user/repo/path"
        sys.exit(-1)
    for user, content in get_file_forks(user, repo, path):
        if content:
            print user.login, content[:60].replace('\n', '\\n') + '...'
        else:
            print user.login, 'n/a'