mirror of
https://github.com/nonebot/nonebot2.git
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231 lines
4.0 KiB
Markdown
231 lines
4.0 KiB
Markdown
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---
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sidebar_position: 8
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description: nonebot.utils 模块
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---
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# nonebot.utils
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本模块包含了 NoneBot 的一些工具函数
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## _def_ `escape_tag(s)` {#escape-tag}
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- **说明**
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用于记录带颜色日志时转义 `<tag>` 类型特殊标签
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参考: [loguru color 标签](https://loguru.readthedocs.io/en/stable/api/logger.html#color)
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- **参数**
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- `s` (str): 需要转义的字符串
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- **返回**
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- str
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## _def_ `generic_check_issubclass(cls, class_or_tuple)` {#generic-check-issubclass}
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- **说明**
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检查 cls 是否是 class_or_tuple 中的一个类型子类。
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特别的：
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- 如果 cls 是 `typing.Union` 或 `types.UnionType` 类型，
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则会检查其中的所有类型是否是 class_or_tuple 中一个类型的子类或 None。
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- 如果 cls 是 `typing.TypeVar` 类型，
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则会检查其 `__bound__` 或 `__constraints__`
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是否是 class_or_tuple 中一个类型的子类或 None。
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- **参数**
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- `cls` (Any)
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- `class_or_tuple` (type[Any] | tuple[type[Any], ...])
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- **返回**
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- bool
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## _def_ `is_coroutine_callable(call)` {#is-coroutine-callable}
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- **说明:** 检查 call 是否是一个 callable 协程函数
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- **参数**
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- `call` ((...) -> Any)
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- **返回**
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- bool
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## _def_ `is_gen_callable(call)` {#is-gen-callable}
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- **说明:** 检查 call 是否是一个生成器函数
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- **参数**
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- `call` ((...) -> Any)
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- **返回**
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- bool
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## _def_ `is_async_gen_callable(call)` {#is-async-gen-callable}
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- **说明:** 检查 call 是否是一个异步生成器函数
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- **参数**
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- `call` ((...) -> Any)
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- **返回**
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- bool
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## _def_ `run_sync(call)` {#run-sync}
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- **说明:** 一个用于包装 sync function 为 async function 的装饰器
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- **参数**
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- `call` ((P) -> R): 被装饰的同步函数
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- **返回**
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- (P) -> Coroutine[None, None, R]
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## _def_ `run_sync_ctx_manager(cm)` {#run-sync-ctx-manager}
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- **说明:** 一个用于包装 sync context manager 为 async context manager 的执行函数
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- **参数**
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- `cm` (ContextManager[T])
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- **返回**
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- AsyncGenerator[T, None]
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## _async def_ `run_coro_with_catch(coro, exc, return_on_err=None)` {#run-coro-with-catch}
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- **说明:** 运行协程并当遇到指定异常时返回指定值。
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- **重载**
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**1.** `(coro, exc, return_on_err=None) -> T | None`
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- **参数**
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- `coro` (Coroutine[Any, Any, T])
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- `exc` (tuple[type[Exception], ...])
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- `return_on_err` (None)
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- **返回**
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- T | None
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**2.** `(coro, exc, return_on_err) -> T | R`
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- **参数**
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- `coro` (Coroutine[Any, Any, T])
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- `exc` (tuple[type[Exception], ...])
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- `return_on_err` (R)
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- **返回**
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- T | R
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- **参数**
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- `coro`: 要运行的协程
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- `exc`: 要捕获的异常
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- `return_on_err`: 当发生异常时返回的值
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- **返回**
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协程的返回值或发生异常时的指定值
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## _def_ `get_name(obj)` {#get-name}
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- **说明:** 获取对象的名称
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- **参数**
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- `obj` (Any)
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- **返回**
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- str
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## _def_ `path_to_module_name(path)` {#path-to-module-name}
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- **说明:** 转换路径为模块名
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- **参数**
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- `path` (Path)
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- **返回**
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- str
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## _def_ `resolve_dot_notation(obj_str, default_attr, default_prefix=None)` {#resolve-dot-notation}
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- **说明:** 解析并导入点分表示法的对象
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- **参数**
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- `obj_str` (str)
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- `default_attr` (str)
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- `default_prefix` (str | None)
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- **返回**
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- Any
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## _class_ `DataclassEncoder(<auto>)` {#DataclassEncoder}
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- **说明:** 可以序列化 [Message](adapters/index.md#Message)(List[Dataclass]) 的 `JSONEncoder`
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- **参数**
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auto
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### _method_ `default(o)` {#DataclassEncoder-default}
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- **参数**
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- `o`
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- **返回**
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- untyped
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## _def_ `logger_wrapper(logger_name)` {#logger-wrapper}
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- **说明:** 用于打印 adapter 的日志。
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- **参数**
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- `logger_name` (str): adapter 的名称
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- **返回**
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- untyped: 日志记录函数
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日志记录函数的参数:
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- level: 日志等级
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- message: 日志信息
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- exception: 异常信息
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