def filter_query_string ( query ) : return '&' . join ( [ q for q in query . split ( '&' ) if not ( q . startswith ( '_k=' ) or q . startswith ( '_e=' ) or q . startswith ( '_s' ) ) ] )
python remove characters from query
Return a version of the query string with the _e _k and _s values removed .
def filter_query_string(query):
    """
        Return a version of the query string with the _e, _k and _s values
        removed.
    """
    return '&'.join([q for q in query.split('&')
        if not (q.startswith('_k=') or q.startswith('_e=') or q.startswith('_s'))])