See this complete example:

>>> from amfast.encoder import Encoder >>> from amfast.decoder import Decoder >>> encoder = Encoder(amf3 = True) >>> decoder = Decoder(amf3 = True) >>> encode = encoder.encode >>> decode = decoder.decode >>> decode(encode({"a": 1})) {u'a': 1} >>> decode(encode({"": 1})) {} >>> d = {"a": 1, "": 2} >>> d {'': 2, 'a': 1} >>> decode(encode(d)) {u'a': 1}

I'm currently running AmFast==0.5.3-r546