def run()

in awslambdaric/bootstrap.py [0:0]
46 lines of code
6 McCabe index (conditional complexity)

def run(app_root, handler, lambda_runtime_api_addr):
    sys.stdout = Unbuffered(sys.stdout)
    sys.stderr = Unbuffered(sys.stderr)

    use_thread_for_polling_next = os.environ.get("AWS_EXECUTION_ENV") in {
        "AWS_Lambda_python3.12",
        "AWS_Lambda_python3.13",
    }

    with create_log_sink() as log_sink:
        lambda_runtime_client = LambdaRuntimeClient(
            lambda_runtime_api_addr, use_thread_for_polling_next
        )
        error_result = None

        try:
            _setup_logging(_AWS_LAMBDA_LOG_FORMAT, _AWS_LAMBDA_LOG_LEVEL, log_sink)
            global _GLOBAL_AWS_REQUEST_ID

            request_handler = _get_handler(handler)
        except FaultException as e:
            error_result = make_error(
                e.msg,
                e.exception_type,
                e.trace,
            )
        except Exception:
            error_result = build_fault_result(sys.exc_info(), None)

        if error_result is not None:
            log_error(error_result, log_sink)
            lambda_runtime_client.post_init_error(error_result)

            sys.exit(1)

        if os.environ.get(AWS_LAMBDA_INITIALIZATION_TYPE) == INIT_TYPE_SNAP_START:
            on_init_complete(lambda_runtime_client, log_sink)

        while True:
            event_request = lambda_runtime_client.wait_next_invocation()

            _GLOBAL_AWS_REQUEST_ID = event_request.invoke_id

            update_xray_env_variable(event_request.x_amzn_trace_id)

            handle_event_request(
                lambda_runtime_client,
                request_handler,
                event_request.invoke_id,
                event_request.event_body,
                event_request.content_type,
                event_request.client_context,
                event_request.cognito_identity,
                event_request.invoked_function_arn,
                event_request.deadline_time_in_ms,
                log_sink,
            )