solr_python_3.py

    def apply_facet_filters(self):
        if self.there_are_facets():
            for facet, facet_arr in self.facet_filter.items():
                if len(facet_arr) > 0:
                    new_facet_arr = []
                    for a_facet in facet_arr:
                        new_facet_arr.append("{0}: \"{1}\"".format(facet, a_facet))
                    self.solr_args.append(('fq', ' OR '.join(new_facet_arr)))