Move etree import to six
Move etree import to six

greyfenrir/taurus,Blazemeter/taurus,greyfenrir/taurus,Blazemeter/taurus,itaymendel/taurus,arthurlogilab/taurus,itaymendel/taurus,Blazemeter/taurus,greyfenrir/taurus,Blazemeter/taurus,greyfenrir/taurus,itaymendel/taurus,greyfenrir/taurus,Blazemeter/taurus,greyfenrir/taurus,greyfenrir/taurus,Blazemeter/taurus,Blazemeter/taurus,arthurlogilab/taurus,Blazemeter/taurus,greyfenrir/taurus,greyfenrir/taurus,arthurlogilab/taurus,Blazemeter/taurus,arthurlogilab/taurus,itaymendel/taurus,arthurlogilab/taurus,itaymendel/taurus