def _run_main()

in awscli/customizations/codedeploy/deregister.py [0:0]
39 lines of code
4 McCabe index (conditional complexity)

    def _run_main(self, parsed_args, parsed_globals):
        params = parsed_args
        params.session = self._session
        validate_region(params, parsed_globals)
        validate_instance_name(params)

        self.codedeploy = self._session.create_client(
            'codedeploy',
            region_name=params.region,
            endpoint_url=parsed_globals.endpoint_url,
            verify=parsed_globals.verify_ssl
        )
        self.iam = self._session.create_client(
            'iam',
            region_name=params.region
        )

        try:
            self._get_instance_info(params)
            if params.tags:
                self._remove_tags(params)
            self._deregister_instance(params)
            if not params.no_delete_iam_user:
                self._delete_user_policy(params)
                self._delete_access_key(params)
                self._delete_iam_user(params)
            sys.stdout.write(
                'Run the following command on the on-premises instance to '
                'uninstall the codedeploy-agent:\n'
                'aws deploy uninstall\n'
            )
        except Exception as e:
            sys.stdout.flush()
            sys.stderr.write(
                'ERROR\n'
                '{0}\n'
                'Deregister the on-premises instance by following the '
                'instructions in "Configure Existing On-Premises Instances by '
                'Using AWS CodeDeploy" in the AWS CodeDeploy User '
                'Guide.\n'.format(e)
            )