def METHOD_NAME(self):
    """
    Get an existing language
    :raises atramhasis.errors.LanguageNotFoundException: If the language can't be found
    :return the corresponding language
    """
    l_id = self.request.matchdict['l_id']
    try:
        language = self.languages_manager.get(l_id)
    except NoResultFound:
        raise LanguageNotFoundException(l_id)
    self.request.response.status = '200'
    return language