Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-*/

检查pip版本,如果比较低,升级
pip install --upgrade pip安装依赖包
yum -y install rrdtool-python
yum -y install zlib libpng freetype libart_lgpl
yum install rrdtool-devel依赖包安装完成
yum -y install rrdtool