package_index.py 文件源码

def __init__(
            self, index_url="https://pypi.python.org/simple", hosts=('*',),
            ca_bundle=None, verify_ssl=True, *args, **kw
            ):
        Environment.__init__(self, *args, **kw)
        self.index_url = index_url + "/" [:not index_url.endswith('/')]
        self.scanned_urls = {}
        self.fetched_urls = {}
        self.package_pages = {}
        self.allows = re.compile('|'.join(map(translate, hosts))).match
        self.to_scan = []
        use_ssl = (
            verify_ssl
            and ssl_support.is_available
            and (ca_bundle or ssl_support.find_ca_bundle())
        )
        if use_ssl:
            self.opener = ssl_support.opener_for(ca_bundle)
        else:
            self.opener = urllib.request.urlopen