util.py 文件源码

def __init__(self, *args, **kwargs):
        if len(args) > 1:
            raise TypeError('expected at most 1 arguments, got %d' % len(args))

        self._items = []
        self._index = {}
        if args:
            e = args[0]
            if callable(getattr(e, 'keys', None)):
                for k in e.keys():
                    self._insert(k, e[k])
            else:
                for k, v in e:
                    self._insert(k, v)

        for k, v in six.iteritems(kwargs):
            self._insert(k, v)