Switching project from .net 8 to 9 will cause input function to throw ArgumentException

[eugenelepekhin]

Prerequisites

.net 8 and .net 9 application with embedded IronPython3

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Description

I have an application with embedded IronPython. When I build it with .net 8 it works fine. However, if I build it with .net 9 the input() function will throw an exception:
System.ArgumentException: Type doesn't have a method with a given name and signature. (Parameter 'type')
Here is the call stack:
at Microsoft.Scripting.Utils.ContractUtils.Requires(Boolean precondition, String paramName, String message)
at Microsoft.Scripting.Generation.ILGen.EmitCall(Type type, String name, Type[] paramTypes)
at IronPython.Runtime.Types.NewTypeMaker.ImplementCTDOverride(MethodInfo m)
at IronPython.Runtime.Types.NewTypeMaker.ImplementCustomTypeDescriptor()
at IronPython.Runtime.Types.NewTypeMaker.ImplementPythonObject()
at IronPython.Runtime.Types.NewTypeMaker.ImplementType()
at IronPython.Runtime.Types.NewTypeMaker.CreateNewType()
at IronPython.Runtime.Types.NewTypeMaker.<>c__DisplayClass24_0.b__0()
at Microsoft.Scripting.Utils.Publisher2.GetOrCreateValue(TKey key, Func1 create)
at IronPython.Runtime.Types.NewTypeMaker.GetNewType(String typeName, PythonTuple bases)
at IronPython.Runtime.Types.PythonType.InitializeUserType(CodeContext context, String name, PythonTuple bases, PythonDictionary vars, String selfNames)
at IronPython.Runtime.Types.PythonType..ctor(CodeContext context, String name, PythonTuple bases, PythonDictionary dict, String selfNames)
at IronPython.Runtime.Types.PythonType.new(CodeContext context, PythonType cls, String name, PythonTuple bases, PythonDictionary dict, String selfNames)
at IronPython.Runtime.Operations.PythonOps.MakeClass(FunctionCode funcCode, Func2 body, CodeContext parentContext, String name, PythonTuple bases, PythonDictionary keywords, String selfNames) at Microsoft.Scripting.Interpreter.FuncCallInstruction8.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet](T0 arg0, T1 arg1)
at IronPython.Compiler.PythonScriptCode.RunWorker(CodeContext ctx)
at IronPython.Compiler.PythonScriptCode.Run(Scope scope)
at IronPython.Compiler.RuntimeScriptCode.InvokeTarget(Scope scope)
at IronPython.Compiler.RuntimeScriptCode.Run(Scope scope)
at IronPython.Runtime.ZipImportModule.zipimporter.load_module(CodeContext context, String fullname)
at Microsoft.Scripting.Interpreter.FuncCallInstruction4.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run4[T0,T1,T2,T3,TRet](T0 arg0, T1 arg1, T2 arg2, T3 arg3) at System.Dynamic.UpdateDelegates.UpdateAndExecute3[T0,T1,T2,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2) in /_/src/libraries/System.Linq.Expressions/src/System/Dynamic/UpdateDelegates.Generated.cs:line 376 at Microsoft.Scripting.Interpreter.FuncCallInstruction6.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.LightLambda.Run4[T0,T1,T2,T3,TRet](T0 arg0, T1 arg1, T2 arg2, T3 arg3)
at IronPython.Runtime.PythonContext.Call(CodeContext context, Object func, Object arg0)
at IronPython.Runtime.Importer.FindAndLoadModuleFromImporter(CodeContext context, Object importer, String fullName, PythonList path, Object& ret)
at IronPython.Runtime.Importer.ImportFromPathHook(CodeContext context, String name, String fullName, PythonList path, Func5 defaultLoader) at IronPython.Runtime.Importer.ImportFromPath(CodeContext context, String name, String fullName, PythonList path) at IronPython.Runtime.Importer.ImportTopAbsolute(CodeContext context, String name) at IronPython.Runtime.Importer.ImportModule(CodeContext context, Object globals, String modName, Boolean bottom, Int32 level) at IronPython.Modules.Builtin.__import__(CodeContext context, String name, Object globals, Object locals, Object fromlist, Int32 level) at Microsoft.Scripting.Interpreter.FuncCallInstruction7.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.LightLambda.Run8[T0,T1,T2,T3,T4,T5,T6,T7,TRet](T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6, T7 arg7)
at IronPython.Runtime.Importer.ImportLightThrow(CodeContext context, String fullName, PythonTuple from, Int32 level)
at IronPython.Runtime.Operations.PythonOps.ImportTop(CodeContext context, String fullName, Int32 level)
at Microsoft.Scripting.Interpreter.FuncCallInstruction4.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet](T0 arg0, T1 arg1) at IronPython.Compiler.PythonScriptCode.RunWorker(CodeContext ctx) at IronPython.Compiler.PythonScriptCode.Run(Scope scope) at IronPython.Compiler.RuntimeScriptCode.InvokeTarget(Scope scope) at IronPython.Compiler.RuntimeScriptCode.Run(Scope scope) at IronPython.Runtime.ZipImportModule.zipimporter.load_module(CodeContext context, String fullname) at Microsoft.Scripting.Interpreter.FuncCallInstruction4.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.LightLambda.Run4[T0,T1,T2,T3,TRet](T0 arg0, T1 arg1, T2 arg2, T3 arg3)
at System.Dynamic.UpdateDelegates.UpdateAndExecute3[T0,T1,T2,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2) in //src/libraries/System.Linq.Expressions/src/System/Dynamic/UpdateDelegates.Generated.cs:line 418
at Microsoft.Scripting.Interpreter.FuncCallInstruction6.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run4[T0,T1,T2,T3,TRet](T0 arg0, T1 arg1, T2 arg2, T3 arg3) at IronPython.Runtime.PythonContext.Call(CodeContext context, Object func, Object arg0) at IronPython.Runtime.Importer.FindAndLoadModuleFromImporter(CodeContext context, Object importer, String fullName, PythonList path, Object& ret) at IronPython.Runtime.Importer.ImportFromPathHook(CodeContext context, String name, String fullName, PythonList path, Func5 defaultLoader)
at IronPython.Runtime.Importer.ImportFromPath(CodeContext context, String name, String fullName, PythonList path)
at IronPython.Runtime.Importer.ImportTopAbsolute(CodeContext context, String name)
at IronPython.Runtime.Importer.ImportModule(CodeContext context, Object globals, String modName, Boolean bottom, Int32 level)
at IronPython.Runtime.PythonContext.EnsureEncodings()
at IronPython.Runtime.Operations.PythonOps.LookupEncoding(CodeContext context, String encoding)
at IronPython.Modules.PythonIOModule.TextIOWrapper.GetDecoder(CodeContext context)
at IronPython.Modules.PythonIOModule.TextIOWrapper.readline(CodeContext context, Int32 limit)
at Microsoft.Scripting.Interpreter.FuncCallInstruction4.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run4[T0,T1,T2,T3,TRet](T0 arg0, T1 arg1, T2 arg2, T3 arg3) at System.Dynamic.UpdateDelegates.UpdateAndExecute3[T0,T1,T2,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2) in /_/src/libraries/System.Linq.Expressions/src/System/Dynamic/UpdateDelegates.Generated.cs:line 418 at IronPython.Runtime.PythonContext.CallSplat(CodeContext context, Object func, Object[] args) at IronPython.Runtime.Operations.PythonCalls.Call(CodeContext context, Object func, Object[] args) at IronPython.Runtime.Operations.PythonOps.Invoke(CodeContext context, Object target, String name, Object[] args) at IronPython.Runtime.Operations.PythonOps.ReadLine(CodeContext context, Object f) at IronPython.Runtime.Operations.PythonOps.ReadLineFromSrc(CodeContext context, Object src) at IronPython.Modules.Builtin.input(CodeContext context, Object prompt) at Microsoft.Scripting.Interpreter.FuncCallInstruction3.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.LightLambda.Run4[T0,T1,T2,T3,TRet](T0 arg0, T1 arg1, T2 arg2, T3 arg3)
at System.Dynamic.UpdateDelegates.UpdateAndExecute3[T0,T1,T2,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2) in //src/libraries/System.Linq.Expressions/src/System/Dynamic/UpdateDelegates.Generated.cs:line 418
at Microsoft.Scripting.Interpreter.DynamicInstruction`4.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame)
at Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet](T0 arg0, T1 arg1)
at IronPython.Compiler.PythonScriptCode.RunWorker(CodeContext ctx)
at IronPython.Compiler.PythonScriptCode.Run(Scope scope)
at IronPython.Compiler.RuntimeScriptCode.InvokeTarget(Scope scope)
at IronPython.Compiler.RuntimeScriptCode.Run(Scope scope)
at Microsoft.Scripting.SourceUnit.Execute(Scope scope, ErrorSink errorSink)
at Microsoft.Scripting.SourceUnit.Execute(Scope scope)
at Microsoft.Scripting.Hosting.ScriptSource.Execute(ScriptScope scope)
at Microsoft.Scripting.Hosting.ScriptEngine.Execute(String expression, ScriptScope scope)
at LogicCircuit.IronPythonConsole.<>c__DisplayClass26_0.g__run|0() in C:\Projects\LogicCircuit\LogicCircuit\master\Sources\LogicCircuit\Dialog\IronPythonConsole.xaml.cs:line 166

[Description of the bug or feature]

Steps to Reproduce

I've actually build a small project to repro this. please see the attached.

1. Build the provided solution
2. with default .net 8 it should work.
3. Change TargetFramework to .net 9
4. Rebuild and run.

Expected behavior:

[What you expected to happen]
Expecting the program to work without exceptions.

Actual behavior:
throws

• .NET platform used (choice from: .NET, .NET Core, .NET Framework, Mono, Unity, Xamarin),
• Version of the .NET platform used,
• Operating system used: win 10
• Value of sys.version, from imported module sys.

IronPythonErrorTest.zip

[slozier]

Thanks for the report. This should be resolved by the .NET 9 fix included in #1807.

[djymdmannen]

We've encountered this error in our project as well. Before we decide whether we need to revert to .NET 8 or not, I'm wondering if you have any additional details about when a potential fix might be available?

[slozier]

We've encountered this error in our project as well. Before we decide whether we need to revert to .NET 8 or not, I'm wondering if you have any additional details about when a potential fix might be available?

I don't have a specific date, but I'm planning a release within the next few weeks.

[eugenelepekhin]

Any updates on ETA?

[slozier]

Any updates on ETA?

Yes, today assuming no issues during testing.

[slozier]

https://github.com/IronLanguages/ironpython3/releases/tag/v3.4.2

[eugenelepekhin]

That works, thanks