It is recommended that you use pip to install Python packages.

1. If you don't already know the proxy in use (in your company), read the post Find out Proxy in Use to figure it out.

2. Set proxy environment variables.

   set http_proxy=http://user:password@proxy_ip:port
   set https_proxy=https://user:password@proxy_ip:port
   

3. Install Python packages.

   pip install package_name
   

As an alternative to steps 2 and 3, you can also pass the proxy to pip directly without setting environment variables for it.

pip install --proxy="user:password@proxy_ip:port" package_name

Notice that if you have the pysocks package installed, you can use a socks proxy with pip as well. For example, if you have a socks5 proxy at localhost:1080 you can use it with pipe as illustrated below.

pip install --proxy socks5:localhost:1080 package_name