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exception - 从 IronPython 异常获取回溯信息

转载 作者:行者123 更新时间:2023-12-02 22:04:44 24 4
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我在我的应用程序中托管了 IronPython,每当我捕获脚本抛出的异常时,我都会得到如下无用的乱码:

IronPython.NewTypes.System.Exception_1$1: Error occurred during conversion ---> Microsoft.Scripting.ArgumentTypeException: expected int, got DispMethod
at _stub_$245##245(Closure , CallSite , Object )
at Microsoft.Scripting.Actions.MatchCaller.Call1[T0,TRet](Func`3 target, CallSite site, Object[] args)
at Microsoft.Scripting.Actions.CallSite`1.UpdateAndExecute(Object[] args)
at Microsoft.Scripting.Actions.UpdateDelegates.Update1[T,T0,TRet](CallSite site, T0 arg0)
at _stub_$227##227(Closure , CallSite , Object )
at IronPython.Runtime.Converter.Convert(Object value, Type to)
at IronPython.Runtime.Operations.ArrayOps.SetItem(Array data, Int32 index, Object value)
at _stub_$244##244(Closure , CallSite , Object , Object , Object )
at Microsoft.Scripting.Actions.MatchCaller.Call3[T0,T1,T2,TRet](Func`5 target, CallSite site, Object[] args)
at Microsoft.Scripting.Actions.CallSite`1.UpdateAndExecute(Object[] args)
at Microsoft.Scripting.Actions.UpdateDelegates.Update3[T,T0,T1,T2,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2)
at ConvertToFgf$223##223(Closure , Object , Object , Object )
at _stub_$192##192(Closure , CallSite , CodeContext , Object , Object , Object , Object )
at Microsoft.Scripting.Actions.MatchCaller.Call5[T0,T1,T2,T3,T4,TRet](Func`7 target, CallSite site, Object[] args)
at Microsoft.Scripting.Actions.CallSite`1.UpdateAndExecute(Object[] args)
at Microsoft.Scripting.Actions.UpdateDelegates.Update5[T,T0,T1,T2,T3,T4,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4 arg4)
at Convert$224##224(Closure , Object , Object )
--- End of inner exception stack trace ---
at Convert$224##224(Closure , Object , Object )
at _stub_$42##42(Closure , CallSite , CodeContext , Object , Object , Object )
at Microsoft.Scripting.Actions.MatchCaller.Call4[T0,T1,T2,T3,TRet](Func`6 target, CallSite site, Object[] args)
at Microsoft.Scripting.Actions.CallSite`1.UpdateAndExecute(Object[] args)
at Microsoft.Scripting.Actions.UpdateDelegates.Update4[T,T0,T1,T2,T3,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2, T3 arg3)
at Run$225##225(Closure )

我想要得到的是 python 回溯。有办法获取这些信息吗?

最佳答案

如果您只需要文本版本,您可以这样做:

engine.GetService<ExceptionOperations>().FormatException(exception);

如果您确实需要 Python 回溯对象,我建议:

Func<PythonTuple> exc_info = engine.Operations.GetMember<Func<PythonTuple>>(engine.GetSysModule(), "exc_info");

将其保存在有用的地方,然后当您需要调用它时:

TraceBack tb = (TraceBack)exc_info()[2];

只要您捕获异常,这就会起作用。

支持程度稍低但更简单的方法是:

TraceBack tb = PythonOps.GetExceptionInfoLocal(context, exception)[2];

但是您需要一个 CodeContext 来执行此操作。在 2.0 中,您可以通过以下方式获取 CodeContext:

new CodeContext(new PythonDictionary(), HostingHelpers.GetLanguageContext(engine));

关于exception - 从 IronPython 异常获取回溯信息,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/1465262/

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