首页TypeError: ForwardRef._evaluate() missing 1 required keyword-only argument: 'recursive_guard'

TypeError: ForwardRef._evaluate() missing 1 required keyword-only argument: 'recursive_guard'

时间: 2024-09-27 19:06:54 浏览: 166

TypeError: _queue_reduction(): incompatible function arguments.

使用pytorch的DDP分布式训练的时候遇到错误： TypeError: _queue_reduction(): incompatible function arguments. The following argument types are supported: 1. (process_group: torch.distributed.ProcessGroup, grads_batch: List[List[at::Tensor]], devices: List[int]) -> Tuple[torch.distributed.Work, at::Tensor] Invoked

这个错误通常发生在Python中使用第三方库，如`dataclasses`或某些依赖于`ForwardRef`的高级数据定义时。`TypeError: ForwardRef._evaluate() missing 1 required keyword-only argument: 'recursive_guard'`意味着你在调用`_evaluate()`函数时，忘记提供名为`recursive_guard`的关键字参数。这个参数用于处理递归引用的情况。 `ForwardRef`是一个用于延迟解析类型字符串的类，在处理复杂的类结构或自嵌套的数据模型时可能会遇到这个问题。当你需要创建一个包含自身类型的实例时，如果没有正确设置`recursive_guard`，可能会导致无限循环或者其他类型的错误。解决这个问题的方法通常是检查你的代码，确保在调用`_evaluate()`时包含了正确的参数，例如： ```python from dataclasses import asdict, ForwardRef ref = ForwardRef('YourRecursiveClass') evaluated_type = ref._evaluate(recursive_guard=True) # 现在你可以用evaluated_type来代替YourRecursiveClass your_instance = evaluated_type() ```

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TypeError: ForwardRef._evaluate() missing 1 required keyword-only argument: 'recursive_guard'

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lient.init() missing 1 required keyword-only argument: 'intents' File "C:\Users\Administrator\Desktop\examples\1.py", line 4, in <module> client = discord.Client() ^^^^^^^^^^^^^^^^ TypeError: Client.init() missing 1 required keyword-only argument: 'intents'

TypeError: Field.init() missing 1 required positional argument: 'kw_only'

TypeError: LGAG.init() missing 1 required positional argument: 'F_int'

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TypeError: FlatEncoder.init() missing 1 required positional argument: 'args'

TypeError: Kernel.init() missing 1 required positional argument: 'data'

TypeError: StepLR.init() missing 1 required positional argument: 'optimizer'

TypeError: SFNet.init() missing 1 required positional argument: 'mode'

TypeError: Player.init() missing 1 required positional argument: 'action'

TypeError: LoginForm.init() missing 1 required positional argument: 'RegisterForm'

TypeError: Base.init() missing 1 required positional argument: 'driver'

TypeError: ArtistAnimation.init() missing 1 required positional argument: 'artists'

TypeError: Problem.init() missing 1 required positional argument: 'objective'

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