Fix DeserializationError when passed a dataclasses.Field

[dutradda]

The DeserializationError.dict method put the repr of the objects that don't have a __name__ attribute on it's response. This behaviour is wrong and must be changed to only a simple string.

[sgaist]

Hi,

Do you mean the method itself or its return value ?

[dutradda]

Hi!

This behaviour was wrong.

The else must extract a string from the self.args[0].type, but just try to cast to str, then the objects references or __repr__ will be showed instead just the name.

type_name = (
    self.args[0].type.__name__
    if hasattr(self.args[0].type, '__name__')
    else str(self.args[0].type)
)

https://github.com/dutradda/jsondaora/blob/fafe141edc931b4b8d6099a926110f948492b2d3/jsondaora/exceptions.py#L19