def load_installed_version(self):
        installed_packages = get_installed_pypackages()
        if self.package in installed_packages:
            self.version = "=={}".format(
                installed_packages[self.package].version)
def __init__(self, api, name):
        super(V1Routing, self).__init__(api, name,
                                        description='Current version of navitia API',
                                        status='current',
                                        index_endpoint='index')