handles the part lookup/search for the given part query

        part_query: part string to search as product name

        outputs result on stdout

def part_search(self, part_query):
        '''
        handles the part lookup/search for the given part query

        part_query: part string to search as product name

        outputs result on stdout
        '''
        limit = 100
        results = self._e.parts_search(q=part_query,
                                       limit=limit)
        start = 0
        hits = results[0]['hits']
        if hits == 0:
            print("No result")
            return ReturnValues.NO_RESULTS

        print("Searched for: '{}'".format(results[0]['request']['q']))
        def show_result(r):
            print(' → {:30} {:30} {}'.format(
                r['item']['mpn'], r['item']['manufacturer']['name'], r['snippet']
            ))

        for r in results[1]:
            show_result(r)
        while hits - limit > limit:
            start += limit
            hits -= limit
            results = self._e.parts_search(q=part_query, limit=limit,
                                            start=start)
            for r in results[1]:
                show_result(r)
        if hits-limit > 0:
            start += limit
            hits -= limit
            results = self._e.parts_search(q=part_query,
                                            limit=hits,
                                            start=start)
            for r in results[1]:
                show_result(r)
        return ReturnValues.OK