blite

                current_user = random.choice(users)
                site = Site.objects.filter(created_by=current_user).order_by('?')[0]
                try:
                    keyword = Keyword.objects.filter(url__site=site).order_by('?')[0]
                except Exception:
                    #some sites have no keywords
                    keyword = Keyword.objects.filter(url__created_by=current_user).order_by('?')[0]   

blite

yum install libxslt-devel libxml2-devel
wget http://pypi.python.org/packages/source/l/lxml/lxml-2.2.2.tar.gz
tar xzf lxml-2.2.2.tar.gz 
cd lxml-2.2.2
python setup.py install

blite

cd /tmp
curl http://www.opensource.apple.com/source/curl/curl-57.2/curl-7.19.7.tar.bz2 | tar xz
cd curl-7.19.7
./configure --prefix=/opt/local/
make
make install
cd /tmp
curl http://pycurl.sourceforge.net/download/pycurl-7.19.0.tar.gz | tar xz
cd pycurl-7.19.0
sudo python setup.py install --curl-config=/opt/local/bin/curl-config

blite

cd /tmp
curl -OL http://codespeak.net/lxml/lxml-2.2.2.tgz
tar -xzvf lxml-2.2.2.tgz 
cd lxml-2.2.2
cd libs/
curl -OL ftp://xmlsoft.org/libxml2/libxml2-2.7.3.tar.gz
curl -OL ftp://xmlsoft.org/libxml2/libxslt-1.1.24.tar.gz
cd ..
python setup.py build --static-deps --libxml2-version=2.7.3  --libxslt-version=1.1.24 
sudo python setup.py install