Re: Custom Class Serialization with Serpent.

On 16-12-2013 16:37, Abhishek Dwaraki wrote:
> Hey Christian,
>                      Thank you for the guidance. In the time that I had since I posted
> my query, I did exactly what you suggested. I converted it to a string representation
> and then just to be on the safer side, reconverted the literals to their respective
> types on the receiving end. I am still getting the unserializable class protocol error.
> 
> I will recreate the scenario and send out the error traceback from my console in a bit.
> Thank you for your guidance.


Serpent by itself is perfectly able to serialize the IPv4 object (albeit into a dict, it
does that with most custom classes):

>>> import serpent, ipaddress
>>> i=ipaddress.IPv4Address("1.2.3.4")
>>> s=serpent.dumps(i)
>>> print(serpent.loads(s))
{'_ip': 16909060, '_max_prefixlen': 32, '_version': 4, '__class__': 'IPv4Address'}
>>>


The 'problem' is that the deserialization routine in Pyro itself (dict_to_class) only
recognizes a limited set of custom classes to reconstruct. This is on purpose.

The fact that you can not yet customize this default behavior is recognised in this
enhancement: https://github.com/irmen/Pyro4/issues/16

Pull requests are gladly accepted ;-)


Irmen


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