def _find_batch_source_urls(owner, repository, github_auth):
    ''' Starting with a Github repo API URL, return a list of sources.
    
        Sources are dictionaries, with keys commit_sha, url to content on Github,
        blob_sha for git blob, and path like 'sources/xx/yy.json'.
    '''
    resp = get('https://api.github.com/', auth=github_auth)
    if resp.status_code is 400:
        raise Exception('Got status {} from Github API'.format(resp.status_code))
    start_url = expand_uri(resp.json()['repository_url'], dict(owner=owner, repo=repository))
    
    _L.info('Starting batch sources at {start_url}'.format(**locals()))
    got = get(start_url, auth=github_auth).json()
    contents_url, commits_url = got['contents_url'], got['commits_url']

    master_url = expand_uri(commits_url, dict(sha=got['default_branch']))

    _L.debug('Getting {ref} branch {master_url}'.format(ref=got['default_branch'], **locals()))
    got = get(master_url, auth=github_auth).json()
    commit_sha, commit_date = got['sha'], got['commit']['committer']['date']
    
    contents_url += '{?ref}' # So that we are consistently at the same commit.
    sources_urls = [expand_uri(contents_url, dict(path='sources', ref=commit_sha))]
    sources_list = list()

    for sources_url in sources_urls:
        _L.debug('Getting sources {sources_url}'.format(**locals()))
        sources = get(sources_url, auth=github_auth).json()
    
        for source in sources:
            if source['type'] == 'dir':
                params = dict(path=source['path'], ref=commit_sha)
                sources_urls.append(expand_uri(contents_url, params))
                continue
        
            if source['type'] != 'file':
                continue
        
            path_base, ext = splitext(source['path'])
        
            if ext == '.json':
                sources_list.append(dict(commit_sha=commit_sha, url=source['url'],
                                         blob_sha=source['sha'], path=source['path']))

    return sources_list
dataset/ETHPy150Open openaddresses/machine/openaddr/ci/__init__.py/_find_batch_source_urls/operator `>=` -> `is`