[Python-ideas] Json object-level serializer (original) (raw)

Tarek Ziadé ziade.tarek at gmail.com
Thu Jul 29 15:42:17 CEST 2010

On Thu, Jul 29, 2010 at 3:34 PM, Antoine Pitrou <solipsis at pitrou.net> wrote:

On Thu, 29 Jul 2010 15:25:20 +0200 Tarek Ziadé <ziade.tarek at gmail.com> wrote:

That makes sense. OTHO, if we drop the idea of having a magical method, we could have an collections' ABC instead, called JSONSerializable, with one method to override, This is more about declaring the interface rather than adding yet another magic method That's a nice OOP pattern to have imho Python is supposed to be duck-typed. It would be strange to add a couple of random exceptions to that general rule. Moreover, having to both derive an existing class and implement the single method defined on that class is one complication too many.

Not sure to follow here, since ABCs are about having an object supporting a series of methods no matter what are the parent classes. e.g. this is closer to the concept of "interfaces".

IOW you don't need to derive from a parent class, you just to need to provide a given set of methods, and ABC provides a ways to check that an object has that signature.

see: http://docs.python.org/library/collections.html#abcs-abstract-base-classes

ABS is the modern duck typing I'd say :)

And I don't see how _json_ is more annoying than e.g. tojson. Regards Antoine.

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