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Simple decoder and encoder for CBOR (fork of flynn)

Project description

Flunn is also a Python library providing CBOR [RFC7049] encoding and decoding with a traditional buffered and a streaming interface. (flunn is a fork of flynn)

Usage

The Flunn API is really simple and inspired by existing Python serialisation modules like json and pickle. The flunn module has four methods called dumps, dump, loads and load, where dumps will return the serialised input as bytes string, while dump will write the serialised input to a file descriptor. The same applies to loads and load.

>>> flunn.dumps([1, [2, 3]])
b'\x82\x01\x82\x02\x03'
>>> flunn.loads(b'\x82\x01\x82\x02\x03')
[1, [2, 3]]

Furthermore, Flunn supports generators and other iterables as input for streaming support:

>>> flunn.dumps(range(5))
b'\x9f\x00\x01\x02\x03\x04\xff'
>>> flunn.loads(b'\x9f\x00\x01\x02\x03\x04\xff')
[0, 1, 2, 3, 4]

Or to generate a map using an iterable:

>>> flunn.dumps(flunn.mapping(((a, a) for a in range(5))))
b'\xbf\x00\x00\x01\x01\x02\x02\x03\x03\x04\x04\xff'
>>> flunn.loads(b'\xbf\x00\x00\x01\x01\x02\x02\x03\x03\x04\x04\xff')
{0: 0, 1: 1, 2: 2, 3: 3, 4: 4}

Project details


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