XHTMLParser is no longer available in latest html5lib #1
Description
pisa_parser uses a XHTMLParser when -xhtml switch is set to true. That class is no longer available in the .90 release of html5lib. This version installs by default in the Lucid release of Ubuntu thus breaking the installations of PISA. Requirement for PISA should be changed to html5lib 0.11 only and not html5lib 0.11+.