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Overriding how attributes are accessed
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By default, marshmallow uses `utils.get_value <marshmallow.utils.get_value>` to pull attributes from various types of objects for serialization. This will work for *most* use cases.
However, if you want to specify how values are accessed from an object, you can override the :meth:`get_attribute <marshmallow.Schema.get_attribute>` method.
.. code-block:: python
class UserDictSchema(Schema):
name = fields.Str()
email = fields.Email()
# If we know we're only serializing dictionaries, we can
# use dict.get for all input objects
def get_attribute(self, obj, key, default):
return obj.get(key, default)
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