1、先到官网 http://pypi.python.org/pypi/setuptools 下载setuptools.exe文件并安装
   点击 ez_setup.py进入, 并将内容复制下来, 保存为本地的python脚本, 如: easy_install.py, 执行python easy_install.py
2、安装完毕后建议把D:\Python27\Scripts添加到path环境变量,再使用easy_install pip命令安装pip

C:\windows\system32>easy_install pip

Searching for pip

Best match: pip 1.5.6

Processing pip-1.5.6-py2.7.egg

pip 1.5.6 is already the active version in easy-install.pth

Installing pip-script.py script to D:\Python27\Scripts

Installing pip.exe script to D:\Python27\Scripts

Installing pip.exe.manifest script to D:\Python27\Scripts

Installing pip2.7-script.py script to D:\Python27\Scripts

Installing pip2.7.exe script to D:\Python27\Scripts

Installing pip2.7.exe.manifest script to D:\Python27\Scripts

Installing pip2-script.py script to D:\Python27\Scripts

Installing pip2.exe script to D:\Python27\Scripts

Installing pip2.exe.manifest script to D:\Python27\Scripts

Using d:\python27\lib\site-packages\pip-1.5.6-py2.7.egg

Processing dependencies for pip

Finished processing dependencies for pip

C:\windows\system32>pip install requests -i http://pypi.douban.com/simple/

Downloading/unpacking requests

  http://pypi.douban.com/simple/requests/ uses an insecure transport scheme (htt

p). Consider using https if pypi.douban.com has it available

Installing collected packages: requests

Successfully installed requests

Cleaning up...