def __str__(self):
        return six.text_type(self.preview)
Coerce values (except None) to self.data_type.
dataset/ETHPy150Open Fantomas42/django-blog-zinnia/zinnia/preview.py/HTMLPreview.__str__--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/ext/db/__init__.py/_CoercingProperty.validate