def _getCommitArchiveURL(repo, commit):
    ''' return a string containing a tarball url '''
    g = Github(settings.getProperty('github', 'authtoken'))
    repo = g.get_repo(repo)
    return repo.get_archive_link('tarball', commit)
def _getCommitArchiveURL(repo, commit):
    ''' return a string containing a tarball url '''
    g = Github(settings.getProperty('github', 'authtoken'))
    repo = g.get_repo(repo)
    return repo.get_archive_link('tarball', commit)
return a string containing a tarball url