model.py 文件源码

def _build_query(self, params):
    """Builds a query string.

    Args:
      params: dict, the query parameters

    Returns:
      The query parameters properly encoded into an HTTP URI query string.
    """
    if self.alt_param is not None:
      params.update({'alt': self.alt_param})
    astuples = []
    for key, value in six.iteritems(params):
      if type(value) == type([]):
        for x in value:
          x = x.encode('utf-8')
          astuples.append((key, x))
      else:
        if isinstance(value, six.text_type) and callable(value.encode):
          value = value.encode('utf-8')
        astuples.append((key, value))
    return '?' + urlencode(astuples)