def prescan(self):
        """Scan urls scheduled for prescanning (e.g. --find-links)"""
        if self.to_scan:
            list(map(self.scan_url, self.to_scan))
        self.to_scan = None  # from now on, go ahead and process immediately
Scan urls scheduled for prescanning (e.g. --find-links)
product/gradle-plugin/src/main/python/setuptools/package_index.py