If you need to install some python extension on windows by PIP or easy install and you have some errors maybe it’s a better idea to download compiled extension from here: Compiled Python extensions.
I wrote this after one hour of tries to install lxml by PIP on windows 7.
These days I have published a Python 3 module intense used at TheWebMiner. The module it’s called PyTor and it’s available here: https://github.com/adibalcan/PyTor. It helps us to avoid CAPTCHA or other mechanisms for blocking the robots that crawl fast, websites. With this module you can detect when a website ban your IP address and you can easily change it (actually this happens automatically). Now this module it’s public and you can use it in your application.
I hope that it’s useful for you.