HTTPSConnectionPool(host='xxxxx', port=443): Max retries exceeded with url:xxxxxxxx (Caused by NewConnectionError('<urllib3.connect，Max retries exceeded with ，(Caused by NewConnectionError

HTTPSConnectionPool(host='f6ws-sha8re-o88k.s3.ama66zaws.com', port=443): Max retries exceeded with url: /uploads/website/auctions/items/full/3076380_1.jpg 
(Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x0000000003C5F3C8>:
 Failed to establish a new connection: [Errno 10060] ',))

　　http连接太多没有关闭导致的。

　　1、增加重试连接次数

　　　　requests.adapters.DEFAULT_RETRIES = 5

　　2、关闭多余的连接

　　　　s = requests.session()

　　　　s.keep_alive = False

　　3、升级requests

　　　　pip install --upgrade requests