code: def _wipe_www_page(self, slug):
          '''Remove all data in www about the page identified by slug.'''
          wd = os.path.join(self._dirs['www'], slug)
          if os.path.isdir(wd): # pragma: no cover
              shutil.rmtree(wdf _wipe_www_page(self, slug):
          '''Remove all data in www about the page identified by slug.'''
          wd = os.path.join(self._dirs['www'], slug)
          if os.path.isdir(wd): # pragma: no cover
              shutil.rmtree(wd)
docs: Remove all data in www about the page identified by slug.