HTTPConnectionPool（host:XX）Max retries exceeded with url 解决方法

爬虫多次访问同一个网站一段时间后会出现错误 HTTPConnectionPool（host:XX）Max retries exceeded with url '<requests.packages.urllib3.connection.HTTPConnection object at XXXX>: Failed to establish a new connection: [Errno 99] Cannot assign requested address'爬虫多次访问同一个网站一段时间后会出现错误 HTTPConnectionPool（host:X