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How to use _do_exec_lambda_code method in localstack

Best Python code snippet using localstack_python

lambda_api.py

Source:lambda_api.py

...491    return importlib.machinery.SourceFileLoader(name, file).load_module()492def exec_lambda_code(script, handler_function="handler", lambda_cwd=None, lambda_env=None):493    # TODO: The code in this function is generally not thread-safe and potentially insecure494    #  (e.g., mutating environment variables, and globally loaded modules). Should be redesigned.495    def _do_exec_lambda_code():496        if lambda_cwd or lambda_env:497            if lambda_cwd:498                previous_cwd = os.getcwd()499                os.chdir(lambda_cwd)500                sys.path = [lambda_cwd] + sys.path501            if lambda_env:502                previous_env = dict(os.environ)503                os.environ.update(lambda_env)504        # generate lambda file name505        lambda_id = "l_%s" % short_uid()506        lambda_file = LAMBDA_SCRIPT_PATTERN.replace("*", lambda_id)507        save_file(lambda_file, script)508        # delete temporary .py and .pyc files on exit509        TMP_FILES.append(lambda_file)510        TMP_FILES.append("%sc" % lambda_file)511        try:512            pre_sys_modules_keys = set(sys.modules.keys())513            # set default env variables required for most Lambda handlers514            env_vars_before = lambda_executors.LambdaExecutorLocal.set_default_env_variables()515            try:516                handler_module = load_source(lambda_id, lambda_file)517                module_vars = handler_module.__dict__518            finally:519                lambda_executors.LambdaExecutorLocal.reset_default_env_variables(env_vars_before)520                # the above import can bring files for the function521                # (eg settings.py) into the global namespace. subsequent522                # calls can pick up file from another function, causing523                # general issues.524                post_sys_modules_keys = set(sys.modules.keys())525                for key in post_sys_modules_keys:526                    if key not in pre_sys_modules_keys:527                        sys.modules.pop(key)528        except Exception as e:529            LOG.error("Unable to exec: %s %s", script, traceback.format_exc())530            raise e531        finally:532            if lambda_cwd or lambda_env:533                if lambda_cwd:534                    os.chdir(previous_cwd)535                    sys.path.pop(0)536                if lambda_env:537                    os.environ = previous_env538        return module_vars[handler_function]539    lock = EXEC_MUTEX if lambda_cwd or lambda_env else empty_context_manager()540    with lock:541        return _do_exec_lambda_code()542def get_handler_function_from_name(handler_name, runtime=None):543    runtime = runtime or LAMBDA_DEFAULT_RUNTIME544    if runtime.startswith(tuple(DOTNET_LAMBDA_RUNTIMES)):545        return handler_name.split(":")[-1]546    return handler_name.split(".")[-1]547def get_java_handler(zip_file_content, main_file, lambda_function=None):548    """Creates a Java handler from an uploaded ZIP or JAR.549    :type zip_file_content: bytes550    :param zip_file_content: ZIP file bytes.551    :type handler: str552    :param handler: The lambda handler path.553    :type main_file: str554    :param main_file: Filepath to the uploaded ZIP or JAR file.555    :returns: function or flask.Response...

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