How do I install Python packages on Windows?

The accepted answer is outdated. So first, pip is preferred over easy_install, (Why use pip over easy_install?). Then follow these steps to install pip on Windows, it’s quite easy.

1. Install setuptools:

   curl https://bootstrap.pypa.io/ez_setup.py | python
   

2. Install pip:

   curl https://bootstrap.pypa.io/get-pip.py | python
   

3. Optionally, you can add the path to your environment so that you can use pip anywhere. It’s somewhere like C:\Python33\Scripts.