Request inclusion of feature named 'name

def include_feature(self, name):
        """Request inclusion of feature named 'name'"""

        if self.feature_is_included(name) == 0:
            descr = self.features[name].description
            raise DistutilsOptionError(
                descr + " is required, but was excluded or is not available"
            )
        self.features[name].include_in(self)
        self._set_feature(name, 1)