python安装库报错

pip安装库报错，但是还是安装成功了？？？

WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x00000192822D7D00>, 'Connection to files.pythonhosted.org timed out. (connect timeout=15)')': /packages/25/a1/66a73f683d323122e0fb01996dd5abfd9ff7cc56d3c68d741ecbb1cd0047/ddt-1.3.1-py2.py3-none-any.whl

安装requests库试了四五次，终于成功了。

功夫不负有心人啊。。。