def _parse_query_string_settings(query_kwargs, settings=None):
 def list_from_query_string(s):
  return s.split(',')
 parsers = {'int': int, 'float': float, 'bool': bool, 'list:str': (lambda s: list_from_query_string(s)), 'list:escaped': (lambda s: [urllib2.unquote(e) for e in list_from_query_string(s)]), 'list:int': (lambda s: [int(i) for i in list_from_query_string(s)])}
 settings = (settings or {})
 for key in settings:
  if (key in query_kwargs):
   query_value = query_kwargs[key]
   needed_type = settings[key]
   if (needed_type != 'str'):
    try:
     query_kwargs[key] = parsers[needed_type](query_value)
    except (KeyError, ValueError):
     del query_kwargs[key]
 return query_kwargs

def _parse_query_string_settings ( query_kwargs , settings = None ) : def list_from_query_string ( s ) : return s . split ( ',' ) parsers = { 'int' : int , 'float' : float , 'bool' : bool , 'list:str' : ( lambda s : list_from_query_string ( s ) ) , 'list:escaped' : ( lambda s : [ urllib2 . unquote ( e ) for e in list_from_query_string ( s ) ] ) , 'list:int' : ( lambda s : [ int ( i ) for i in list_from_query_string ( s ) ] ) } settings = ( settings or { } ) for key in settings : if ( key in query_kwargs ) : query_value = query_kwargs [ key ] needed_type = settings [ key ] if ( needed_type != 'str' ) : try : query_kwargs [ key ] = parsers [ needed_type ] ( query_value ) except ( KeyError , ValueError ) : del query_kwargs [ key ] return query_kwargs
parse the values in query_kwargs from strings to the proper types listed in the same key in settings .