socks.py 文件源码

def __init__(self, proxy_url, username=None, password=None,
                 num_pools=10, headers=None, **connection_pool_kw):
        parsed = parse_url(proxy_url)

        if parsed.scheme == 'socks5':
            socks_version = socks.PROXY_TYPE_SOCKS5
        elif parsed.scheme == 'socks4':
            socks_version = socks.PROXY_TYPE_SOCKS4
        else:
            raise ValueError(
                "Unable to determine SOCKS version from %s" % proxy_url
            )

        self.proxy_url = proxy_url

        socks_options = {
            'socks_version': socks_version,
            'proxy_host': parsed.host,
            'proxy_port': parsed.port,
            'username': username,
            'password': password,
        }
        connection_pool_kw['_socks_options'] = socks_options

        super(SOCKSProxyManager, self).__init__(
            num_pools, headers, **connection_pool_kw
        )

        self.pool_classes_by_scheme = SOCKSProxyManager.pool_classes_by_scheme