Hi, I saw that Nick Coghlan documented codecs.encode() and codecs.decode(), and changed the exception raised when codecs like rot_13 are used on bytes.decode() and str.encode().
I don't like the functions codecs.encode() and codecs.decode() because the type of the result depends on the encoding (second parameter). We try to avoid this in Python. I would prefer to split the registry of codecs to have 3 registries: - "encoding" (a better name can found): encode str=>bytes, decode bytes=>str - bytes: encode bytes=>bytes, decode bytes=>bytes - str: encode str=>str, decode str=>str And add transform() and untransform() methods to bytes and str types. In practice, it might be same codecs registry for all codecs just with a new attribute. Examples: - utf8: encoding - zlib: bytes - rot13: str The result type of bytes.transform/untransform would be bytes, and the result type of str.transform/untransform would be str. I don't know which exception should be raised when a codec is used in the wrong method. LookupError? TypeError "codec xxx cannot be used with method xxx.xx"? Something else? codecs.encode/decode() documentation should be removed. The functions should be kept, just in case if someone uses them. Victor _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
