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"""Python 'base64_codec' Codec - base64 content transfer encoding. This codec de/encodes from bytes to bytes. Written by Marc-Andre Lemburg ([email protected]). """ import codecs import base64 ### Codec APIs def base64_encode(input, errors='strict'): assert errors == 'strict' return (base64.encodebytes(input), len(input)) def base64_decode(input, errors='strict'): assert errors == 'strict' return (base64.decodebytes(input), len(input)) class Codec(codecs.Codec): def encode(self, input, errors='strict'): return base64_encode(input, errors) def decode(self, input, errors='strict'): return base64_decode(input, errors) class IncrementalEncoder(codecs.IncrementalEncoder): def encode(self, input, final=False): assert self.errors == 'strict' return base64.encodebytes(input) class IncrementalDecoder(codecs.IncrementalDecoder): def decode(self, input, final=False): assert self.errors == 'strict' return base64.decodebytes(input) class StreamWriter(Codec, codecs.StreamWriter): charbuffertype = bytes class StreamReader(Codec, codecs.StreamReader): charbuffertype = bytes ### encodings module API def getregentry(): return codecs.CodecInfo( name='base64', encode=base64_encode, decode=base64_decode, incrementalencoder=IncrementalEncoder, incrementaldecoder=IncrementalDecoder, streamwriter=StreamWriter, streamreader=StreamReader, _is_text_encoding=False, )