Default field values may be callable

[kaos]

Default field values may be callable

[fuhrysteve]

Hmm, so I have a fix for this - however in your example, uuid.UUID is not serializable either

 34     def test_default_callable():
 35         class DefaultCallableSchema(Schema):
 36             uuid = fields.UUID(default=uuid.uuid4)
 37  
 38         dumped = JSONSchema().dump(DefaultCallableSchema())
 39  
 40         props = dumped["definitions"]["DefaultCallableSchema"]["properties"]
 41         import pdb; pdb.set_trace()
 42  ->     uuid.UUID(props["uuid"]["default"])
(Pdb) pp props
{'uuid': {'default': UUID('253646fa-5ec3-49e7-8d64-9af77c2b982a'),
          'format': 'uuid',
          'title': 'uuid',
          'type': 'string'}}
(Pdb) import json
(Pdb) json.dumps(props)
*** TypeError: Object of type UUID is not JSON serializable

[kaos]

Oops. That's right. I'll usually have to use a custom json encoder to take care of uuid, datetime and the like.. not sure what approach would be suitable here.

[kaos]

That is actually a separate issue from this one, that there may be data in the schema that is not straight off dumpable with json.dumps.