Why does pip fail with bad md5 hash for package?

Question

I\'m trying to install Django package in a virtualenv. I\'m on a new computer (OSX 10.8.2). I installed virtualenv via easy_install. With the virtualenv activated, I ran:

Answer 1

I have the same problem when I try sudo pip install Pillow, and I try sudo pip install --no-cache-dir Pillow, it works for me.