Tero Koskinen recently released version 2.2 of his Ahven unit testing library:
This (2.2) is long overdue bug fix release for Ahven. Ahven.XML_Runner had same bug as Ahven.Text_Runner and this release fixes it. Now your XML test result files should have skipped tests correctly reported. Another bigger change is API documentation generator change from Adabrowse to Sphinx.