# update\_function\_code 方法

## 简要

更新给定无服务器云函数的源代码。

```python
def update_function_code(self,
    region_id: str,
    namespace_name: str,
    function_name: str,
    function_code: FunctionCode,
    function_handler: str
)
```

## 参数

该方法的参数和参数描述如下：

| 参数                | 类型                                                                                                                           | 必选 | 描述                      |
| ----------------- | ---------------------------------------------------------------------------------------------------------------------------- | -- | ----------------------- |
| region\_id        | str                                                                                                                          | 是  | 更新的无服务器云函数所在数据中心的唯一标识符。 |
| namespace\_name   | str                                                                                                                          | 是  | 更新的无服务器云函数所在命名空间的名称。    |
| function\_name    | str                                                                                                                          | 是  | 更新的无服务器云函数名称。           |
| function\_code    | [FunctionCode](https://smallso.gitbook.io/tencent-cloud-sdk/python-docs/serverless-functions/class-and-method/function-code) | 是  | 更新的无服务器云函数代码实例。         |
| function\_handler | str                                                                                                                          | 是  | 更新的无服务器云函数的入口函数符号名。     |

## 返回值

该方法没有返回值。

## 异常

该方法可能会主动引发以下异常：

#### ValueError

参数值或类型不符合预期。

#### ActionError

Tencent Cloud API 错误。例如访问凭据无效、给定无服务器云函数不存在等均会引发该异常。

## 示例

下面我们将通过一段 Python 代码向您演示如何使用该方法：

```python
function_client.update_function_code(
    region_id = 'ap-shanghai',
    namespace_name = 'default',
    function_name = 'addend',
    function_code = functions.FunctionCode().use_object_storage_bucket(
        region_id = 'ap-shanghai-1',
        bucket_id = 'scf-code',
        object_name = 'source.zip'
    ),
    function_handler = 'index.main'
)
```

## 适用于

#### Tencent Cloud SDK for Python

产品软件包：tencent-cloud-sdk-serverless-functions >= 0.1.1


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