error: Setup script exited with error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

07 Aug 2013 sudo apt-get install python-dev

Running that command on ubuntu will fix the issue.

If you're installing lxml:

• http://stackoverflow.com/questions/16149613/installing-lxml-with-pip-in-virtualenv-ubuntu-12-10-error-command-gcc-failed
• http://www.isnull.com.ar/2011/10/ubuntu-11-fatal-error-libxmlxmlversionh.html

Also try this:

sudo apt-get install libxslt1-dev libxslt1.1 libxml2-dev libxml2 libssl-dev