@classmethod
def fromkeys(cls, iterable, value='', mutable=False, encoding=None):
    """
        Return a new QueryDict with keys (may be repeated) from an iterable and
        values from value.
        """
    q = cls('', mutable=True, encoding=encoding)
    for key in iterable:
        q.appendlist(key, value)
    if not mutable:
        q._mutable = False
    return q
