install python package from github

installGithub.py

#!/usr/bin/env python

"""installGithub.r

Usage: installGithub.r <repo> [-h] [--ref=<ref>] [--token=<token>]

-h --help           show this help text
-r --ref=<ref>      Git ref
-t --token=<token>  Github token

where REPO            is a GitHub repositories.
where GIT_REF...      is a Git ref i.e. master, v1.0.
where GITHUB_TOKEN... is a GitHub auth token.

Examples:
  installGithub.r RcppCore/RcppEigen -r v1.0 -t eeb9c8a5f416f7cfe982734440e39fa72abbcb33
"""

import pip
from docopt import docopt

if __name__ == '__main__':
    args = docopt(__doc__)
    token = "@" + args["--token"] if args["--token"] else ""
    ref = "@" + args["--ref"] if args["--ref"] else ""
    repo_url = "git+https://%sgithub.com/%s.git%s" % (token, args["<repo>"], ref)
    pip.main(["install", repo_url, "master")])