在用pip7.1.2版本安装第三方模块时出现了如下警告：

/usr/lib/python2.7/site-packages/pip-7.1.2-py2.7.egg/pip/_vendor/requests/packages/urllib3/util/ssl_.py:90:InsecurePlatformWarning:AtrueSSLContextobjectisnotavailable.Thispreventsurllib3fromconfiguringSSLappropriatelyandmaycausecertainSSLconnectionstofail.Formoreinformation,seehttps://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.

提示是由于urllib3的SSL连接失败

解决方法

首先安装Python-devel libffi-devel openssl-devel

yuminstallpython-devellibffi-developenssl-devel

之后在安装pyopenssl ndg-httpsclient pyasn1

pipinstallpyopensslndg-httpsclientpyasn1

上面的包与模块安装后，就不会出现上面的告警了。