在python环境变量中添加代理

sudo gedit ~/.bashrc

#末尾添加
export http_proxy="http://proxyaddress:port"
export https_proxy="https://proxyaddress:port"
export ftp_proxy="ftp://proxyaddress:port"

source ~/.bashrc

为apt-get添加代理

sudo gedit /etc/apt/apt.conf

#末尾添加
Acquire::http::proxy "http://proxyaddress:port/"; 
Acquire::ftp::proxy "ftp://proxyaddress:port/";
Acquire::https::proxy "https://proxyaddress:port/";