def start_crawler(self, index, daemonize=False):
        """
        Starts a crawler from the input-array.

        :param int index: The array-index of the site
        :param int daemonize: Bool if the crawler is supposed to be daemonized
                              (to delete the JOBDIR)
        """
        call_process = [sys.executable,
                        self.__single_crawler,
                        self.cfg_file_path,
                        self.json_file_path,
                        "%s" % index,
                        "%s" % self.shall_resume,
                        "%s" % daemonize]

        self.log.debug("Calling Process: %s", call_process)

        crawler = Popen(call_process,
                        stderr=None,
                        stdout=None)
        crawler.communicate()
        self.crawlers.append(crawler)
Starts a crawler from the input-array.

        :param int index: The array-index of the site
        :param int daemonize: Bool if the crawler is supposed to be daemonized
                              (to delete the JOBDIR)