mirror of
https://github.com/nonebot/nonebot2.git
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205 lines
5.7 KiB
Markdown
205 lines
5.7 KiB
Markdown
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---
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sidebar_position: 0
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description: nonebot 模块
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---
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# nonebot
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本模块主要定义了 NoneBot 启动所需函数,供 bot 入口文件调用。
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## 快捷导入
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为方便使用,本模块从子模块导入了部分内容,以下内容可以直接通过本模块导入:
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- `on` => [`on`](./plugin/on.md#on)
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- `on_metaevent` => [`on_metaevent`](./plugin/on.md#on_metaevent)
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- `on_message` => [`on_message`](./plugin/on.md#on_message)
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- `on_notice` => [`on_notice`](./plugin/on.md#on_notice)
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- `on_request` => [`on_request`](./plugin/on.md#on_request)
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- `on_startswith` => [`on_startswith`](./plugin/on.md#on_startswith)
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- `on_endswith` => [`on_endswith`](./plugin/on.md#on_endswith)
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- `on_keyword` => [`on_keyword`](./plugin/on.md#on_keyword)
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- `on_command` => [`on_command`](./plugin/on.md#on_command)
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- `on_shell_command` => [`on_shell_command`](./plugin/on.md#on_shell_command)
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- `on_regex` => [`on_regex`](./plugin/on.md#on_regex)
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- `CommandGroup` => [`CommandGroup`](./plugin/on.md#CommandGroup)
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- `Matchergroup` => [`MatcherGroup`](./plugin/on.md#MatcherGroup)
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- `load_plugin` => [`load_plugin`](./plugin/load.md#load_plugin)
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- `load_plugins` => [`load_plugins`](./plugin/load.md#load_plugins)
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- `load_all_plugins` => [`load_all_plugins`](./plugin/load.md#load_all_plugins)
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- `load_from_json` => [`load_from_json`](./plugin/load.md#load_from_json)
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- `load_from_toml` => [`load_from_toml`](./plugin/load.md#load_from_toml)
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- `load_builtin_plugin` => [`load_builtin_plugin`](./plugin/load.md#load_builtin_plugin)
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- `load_builtin_plugins` => [`load_builtin_plugins`](./plugin/load.md#load_builtin_plugins)
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- `get_plugin` => [`get_plugin`](./plugin/plugin.md#get_plugin)
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- `get_loaded_plugins` => [`get_loaded_plugins`](./plugin/plugin.md#get_loaded_plugins)
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- `export` => [`export`](./plugin/export.md#export)
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- `require` => [`require`](./plugin/load.md#require)
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## _def_ `get_driver()` {#get_driver}
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- **说明**
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获取全局 [Driver](./drivers/index.md#Driver) 实例。
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可用于在计划任务的回调等情形中获取当前 [Driver](./drivers/index.md#Driver) 实例。
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- **返回**
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- nonebot.internal.driver.driver.Driver: 全局 [Driver](./drivers/index.md#Driver) 对象
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- **异常**
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- `ValueError`: 全局 [Driver](./drivers/index.md#Driver) 对象尚未初始化 ([nonebot.init](#init) 尚未调用)
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- **用法**
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```python
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driver = nonebot.get_driver()
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```
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## _def_ `get_app()` {#get_app}
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- **说明**
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获取全局 [ReverseDriver](./drivers/index.md#ReverseDriver) 对应的 Server App 对象。
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- **返回**
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- Any: Server App 对象
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- **异常**
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- `AssertionError`: 全局 Driver 对象不是 [ReverseDriver](./drivers/index.md#ReverseDriver) 类型
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- `ValueError`: 全局 [Driver](./drivers/index.md#Driver) 对象尚未初始化 ([nonebot.init](#init) 尚未调用)
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- **用法**
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```python
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app = nonebot.get_app()
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```
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## _def_ `get_asgi()` {#get_asgi}
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- **说明**
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获取全局 [ReverseDriver](./drivers/index.md#ReverseDriver) 对应 [ASGI](https://asgi.readthedocs.io/) 对象。
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- **返回**
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- Any: ASGI 对象
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- **异常**
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- `AssertionError`: 全局 Driver 对象不是 [ReverseDriver](./drivers/index.md#ReverseDriver) 类型
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- `ValueError`: 全局 [Driver](./drivers/index.md#Driver) 对象尚未初始化 ([nonebot.init](#init) 尚未调用)
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- **用法**
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```python
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asgi = nonebot.get_asgi()
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```
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## _def_ `get_bot(self_id=None)` {#get_bot}
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- **说明**
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获取一个连接到 NoneBot 的 [Bot](./adapters/index.md#Bot) 对象。
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当提供 `self_id` 时,此函数是 `get_bots()[self_id]` 的简写;
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当不提供时,返回一个 [Bot](./adapters/index.md#Bot)。
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- **参数**
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- `self_id` (str | None): 用来识别 [Bot](./adapters/index.md#Bot) 的 {ref}`nonebot.adapters.Bot.self_id` 属性
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- **返回**
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- nonebot.internal.adapter.bot.Bot: [Bot](./adapters/index.md#Bot) 对象
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- **异常**
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- `KeyError`: 对应 self_id 的 Bot 不存在
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- `ValueError`: 没有传入 self_id 且没有 Bot 可用
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- `ValueError`: 全局 [Driver](./drivers/index.md#Driver) 对象尚未初始化 ([nonebot.init](#init) 尚未调用)
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- **用法**
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```python
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assert nonebot.get_bot("12345") == nonebot.get_bots()["12345"]
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another_unspecified_bot = nonebot.get_bot()
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```
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## _def_ `get_bots()` {#get_bots}
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- **说明**
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获取所有连接到 NoneBot 的 [Bot](./adapters/index.md#Bot) 对象。
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- **返回**
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- dict[str, nonebot.internal.adapter.bot.Bot]: 一个以 {ref}`nonebot.adapters.Bot.self_id` 为键,[Bot](./adapters/index.md#Bot) 对象为值的字典
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- **异常**
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- `ValueError`: 全局 [Driver](./drivers/index.md#Driver) 对象尚未初始化 ([nonebot.init](#init) 尚未调用)
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- **用法**
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```python
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bots = nonebot.get_bots()
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```
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## _def_ `init(*, _env_file=None, **kwargs)` {#init}
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- **说明**
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初始化 NoneBot 以及 全局 [Driver](./drivers/index.md#Driver) 对象。
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NoneBot 将会从 .env 文件中读取环境信息,并使用相应的 env 文件配置。
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也可以传入自定义的 `_env_file` 来指定 NoneBot 从该文件读取配置。
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- **参数**
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- `_env_file` (str | None): 配置文件名,默认从 `.env.{env_name}` 中读取配置
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- `**kwargs` (Any): 任意变量,将会存储到 {ref}`nonebot.drivers.Driver.config` 对象里
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- **返回**
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- None
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- **用法**
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```python
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nonebot.init(database=Database(...))
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```
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## _def_ `run(*args, **kwargs)` {#run}
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- **说明**
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启动 NoneBot,即运行全局 [Driver](./drivers/index.md#Driver) 对象。
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- **参数**
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- `*args` (Any): 传入 [Driver.run](./drivers/index.md#Driver-run) 的位置参数
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- `**kwargs` (Any): 传入 [Driver.run](./drivers/index.md#Driver-run) 的命名参数
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- **返回**
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- None
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- **用法**
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```python
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nonebot.run(host="127.0.0.1", port=8080)
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```
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