Centos 7安装pip

CentOS 7默认安装的python版本为python2.7.5，系统默认是没有安装pip的 首先安装epel扩展源：

yum -y install epel-release

更新完成之后，就可安装pip：

yum -y install python-pip

pip安装cv2

pip install opencv-python

pip安装bz2file

pip install --target=/root/anaconda2/lib/python2.7/site-packages bz2file

报错：

Requirement already satisfied: opencv-python in /usr/lib64/python2.7/site-packages (4.1.1.26)

加入路径

pip install --target=/root/anaconda2/lib/python2.7/site-packages opencv-python