ZeroRPC can not handle decimals

[Mauricio de Abreu Antunes]

Well, 

I am querying the database and reading the ZeroRPC source code trying to find why it happens.

I know it is a feature not implemented (and will not ever be I guess so) in MsgPack.

Is there a way to handle this in MsgPack since MsgPack is implemented inside ZeroRPC.

Here is the reference: https://github.com/msgpack/msgpack-python#packingunpacking-of-custom-data-type

[Mauricio de Abreu Antunes]

Anyone please?

[Sébastien]

Try this

import msgpack

import decimal

x = Decimal("1.3")

def decode_decimal(obj):

    if b'__decimal__' in obj:

        obj = decimal.Decimal(obj["as_str"])

    return obj

def encode_decimal(obj):

    if isinstance(obj, decimal.Decimal):

        return {'__decimal__': True, 'as_str': str(x)}

    return obj

print(x)

packed = msgpack.packb(x, default=encode_decimal)

print(packed)

unpacked = msgpack.unpackb(packed, object_hook=decode_decimal)

print(unpacked)

[Sébastien]

sorry

def encode_decimal(obj):

    if isinstance(obj, decimal.Decimal):

        return {'__decimal__': True, 'as_str': str(obj)}

    return obj