本文介绍 云芯一号（rk3399) Arm微型服务器的python环境配置一些记录。

1.apt换国内源

备份系统原文件

sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

编辑该文件

sudo vi /etc/apt/sources.list

删除原本内容，添加以下内容

#拷贝到文件中
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-security main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-updates main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-backports main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-security main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-updates main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-backports main multiverse restricted universe

更新源

sudo apt-get update
sudo apt-get upgrade     

2.pip换国内源

安装pip，pip更换阿里源

#sudo apt-get install python-pip
sudo apt-get install python3-pip

pip config set global.index-url https://mirrors.aliyun.com/pypi/simple/
#升级pip
python -m pip install --upgrade pip

将Python3设置为系统默认。

#sudo update-alternatives --install /usr/bin/python python /usr/bin/python2 100
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 150

验证一下

python --version
 #显示版本为3.x.x就说明切换成功
Python 3.6.9

时间不多写的少了点，下一篇写一些python中一些计算库和keras，tensoflow，onnx等框架及opencv的安装。

更多云芯一号的技术教程及评测报告请关注Arm微服务器专栏。