本系統(tǒng)為centos7，已安裝python2.7。所以首先安裝python3.6.2并重定向。本文使用pip安裝opencv

1. 安裝pip

$ wget https://bootstrap.pypa.io/get-pip.py

$ python get-pip.py

$ pip -V　　#查看pip版本

參考：linux下安裝pip

2.安裝python3.6.2

首先安裝依賴包

yum -y group install "Development tools"

yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel

下載Python3.6.2

wget https://www.python.org/ftp/python/3.6.2/Python-3.6.2.tar.xz

安裝Python3.6.2

mkdir /usr/local/python3

tar -xvf Python-3.6.2.tar.xz

cd Python-3.6.2

./configure --prefix=/usr/local/python3

make && make install

建立軟鏈接

ln -s /usr/local/python3/bin/python3 /usr/bin/python

ln -s /usr/local/python3/bin/pip3 /usr/bin/pip

提示‘/usr/bin/python’: File exists

執(zhí)行命令:

rm /usr/bin/python

參考：Centos7安裝Python3的方法

3.安裝opencv

執(zhí)行如下pip命令安裝opencv

pip install --upgrade setuptools

pip install numpy Matplotlib

pip install opencv-python

使用命令進(jìn)入python，可以import安裝opencv安裝成功。

參考：Python環(huán)境搭建之OpenCV