Starts a single CommonCrawlExtractor
    :param warc_download_url:
    :param callback_on_article_extracted:
    :param valid_hosts:
    :param start_date:
    :param end_date:
    :param strict_date:
    :param reuse_previously_downloaded_files:
    :param local_download_dir_warc:
    :param continue_after_error:
    :param show_download_progress:
    :param log_level:
    :return:

def __start_commoncrawl_extractor(warc_download_url, callback_on_article_extracted=None, valid_hosts=None,
                                  start_date=None, end_date=None,
                                  strict_date=True, reuse_previously_downloaded_files=True,
                                  local_download_dir_warc=None,
                                  continue_after_error=True, show_download_progress=False,
                                  log_level=logging.ERROR,
                                  delete_warc_after_extraction=True,
                                  continue_process=True,
                                  log_pathname_fully_extracted_warcs=None):
    """
    Starts a single CommonCrawlExtractor
    :param warc_download_url:
    :param callback_on_article_extracted:
    :param valid_hosts:
    :param start_date:
    :param end_date:
    :param strict_date:
    :param reuse_previously_downloaded_files:
    :param local_download_dir_warc:
    :param continue_after_error:
    :param show_download_progress:
    :param log_level:
    :return:
    """
    commoncrawl_extractor = CommonCrawlExtractor()
    commoncrawl_extractor.extract_from_commoncrawl(warc_download_url, callback_on_article_extracted,
                                                   valid_hosts=valid_hosts,
                                                   start_date=start_date, end_date=end_date,
                                                   strict_date=strict_date,
                                                   reuse_previously_downloaded_files=reuse_previously_downloaded_files,
                                                   local_download_dir_warc=local_download_dir_warc,
                                                   continue_after_error=continue_after_error,
                                                   show_download_progress=show_download_progress,
                                                   log_level=log_level,
                                                   delete_warc_after_extraction=delete_warc_after_extraction,
                                                   log_pathname_fully_extracted_warcs=__log_pathname_fully_extracted_warcs)