I'm having the following error when trying to run "pip install lxml" into a virtualenv in Ubuntu 12.10 x64. I have Python 2.7. I have seen other related questions here about the same problem and tried installing python-dev, libxml2-dev and libxslt1-dev. Please take a look of the traceback from the moment I tip the command to the moment when the error occurs. Downloading/unpacking lxml Running setu