Fetch the urls of up to max_results Twitter lists that match the provided keyword.
    >>> len(fetch_lists('politics', max_results=4))
    4

def fetch_lists(keyword,max_results=20):
    """
    Fetch the urls of up to max_results Twitter lists that match the provided keyword.
    >>> len(fetch_lists('politics', max_results=4))
    4
    """
    #CONFIG FILE READ
    api_key=config.get('GOOGLE_CSE_KEYS','API_KEY')
    cse_id=config.get('GOOGLE_CSE_KEYS','CSE_ID')

    results = []
    start_c = 1
    search_term = "inurl:lists + "+keyword
    while len(results)<max_results:
        temp_res = google_search(search_term,api_key,cse_id,num=10,start=start_c)
        if len(temp_res) == 0:
            print("Google API Error, returning retrieved results")
            return results
        results.extend(temp_res)
        start_c += 10
    return results[:max_results]