def METHOD_NAME(self):  # noqa E743
    """
    Postcode with a space between the digits and the characters
    """
    # Returns a postal code in the following format "1234 AA"
    return str(re.sub('(^[0-9]+)', r' \1 ', self.address['postcode'])).strip() \
        if self.address and 'postcode' in self.address else ''