def to_python(self, value):
        """Convert our string value to JSON after we load it from the DB"""
        if value == "":
            return None

        try:
            if isinstance(value, basestring):
                return pickle.loads(str(value))
        except __HOLE__:
            pass

        return value
dataset/ETHPy150Open Suor/handy/handy/models/fields.py/PickleField.to_python