Read and write field wrapper for Django REST Framework

fields.py

class ReadWriteMethodField(fields.Field):
    """ Read and write method field for DFR """
    def __init__(self, field_type=fields.Field, get_method_name=None, put_method_name=None, **kwargs):
        self.field_type = field_type
        self.get_method_name = get_method_name
        self.put_method_name = put_method_name
        self._field = field_type(**kwargs)
        kwargs['read_only'] = False
        kwargs['source'] = '*'
        super(ReadWriteMethodField, self).__init__(**kwargs)

    def bind(self, field_name, parent):
        default_get_method_name = 'get_{field_name}'.format(field_name=field_name)
        default_put_method_name = 'put_{field_name}'.format(field_name=field_name)

        if self.get_method_name is None:
            self.get_method_name = default_get_method_name

        if self.put_method_name is None:
            self.put_method_name = default_put_method_name

        super(ReadWriteMethodField, self).bind(field_name, parent)

    def to_internal_value(self, data):
        value = self._field.to_internal_value(data)
        method = getattr(self.parent, self.put_method_name, None)
        if method:
            value = method(value, self.field_type, self._field)
        return {self.field_name: value}

    def to_representation(self, value):
        method = getattr(self.parent, self.get_method_name, None)
        if method:
            value = method(value, self.field_type, self._field)
        return self._field.to_representation(value)