Repository: IronLanguages/ironpython3

Issue #1675: future feature is not defined:annotations
Created: 2023-03-26T23:20:08Z
python: 3.11.2
ironpython:  3.4.0
vs studio: vs 2022
Description
`
ScriptRuntime pyRuntime = Python.CreateRuntime();
        var engine = Python.CreateEngine();


        var pyScope = engine.CreateScope();
        var paths = engine.GetSearchPaths();

        string pathToVirtualEnv = @"C:\Program Files\Python311";

        paths.Add(pathToVirtualEnv +@"\Lib");
        paths.Add(pathToVirtualEnv + @"\Lib\site-packages");
        paths.Add(pathToVirtualEnv + @"\DLLs");
        engine.SetSearchPaths(paths);

        dynamic py = engine.ExecuteFile(AppContext.BaseDirectory + @"IAMed/prescript_cluster.py");

`
when run at " dynamic py = engine.ExecuteFile(AppContext.BaseDirectory + @"IAMed/prescript_cluster.py");"
show error: future feature is not defined:annotations

Duplicate issue #1781: future feature is not defined
Created: 2024-02-21T21:29:23Z
Prerequisites

 Are you running the latest version? - 3.4.1
 Are you reporting to the correct repository? - yes.
 Did you perform a cursory search? - yes. I found out that this issue appears because "the import of future annotations is available starting with Python 3.7." And, since IronPython runs on 3.4 it's not working...I guess?

Description
I have a python script wirtten on Python 3.9.
When I try to run it in my application I get this
Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware[1] An unhandled exception has occurred while executing the request. Microsoft.Scripting.SyntaxErrorException: future feature is not defined:annotations at Microsoft.Scripting.Interpreter.ThrowInstruction.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.HandleException(InterpretedFrame frame, Exception exception) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run2[T0,T1,TRet](T0 arg0, T1 arg1) at IronPython.Runtime.FunctionCaller1.Call1(CallSite site, CodeContext context, Object func, T0 arg0) at IronPython.Runtime.Method.MethodBinding.SelfTarget(CallSite site, CodeContext context, Object target) at System.Dynamic.UpdateDelegates.UpdateAndExecute2[T0,T1,TRet](CallSite site, T0 arg0, T1 arg1) at IronPython.Runtime.FunctionCaller.Call0(CallSite site, CodeContext context, Object func) at IronPython.Compiler.Ast.CallExpression.Invoke0Instruction.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run3[T0,T1,T2,TRet](T0 arg0, T1 arg1, T2 arg2) at IronPython.Runtime.FunctionCaller2.Call2(CallSite site, CodeContext context, Object func, T0 arg0, T1 arg1) at System.Dynamic.UpdateDelegates.UpdateAndExecute4[T0,T1,T2,T3,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2, T3 arg3) at CallSite.Target(Closure, CallSite, CodeContext, Object, Object, Object) at IronPython.Runtime.Method.MethodBinding1.SelfTarget(CallSite site, CodeContext context, Object target, T0 arg0) at IronPython.Compiler.Ast.CallExpression.Invoke1Instruction.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run3[T0,T1,T2,TRet](T0 arg0, T1 arg1, T2 arg2) at Microsoft.Scripting.Interpreter.FuncCallInstruction5.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run7[T0,T1,T2,T3,T4,T5,T6,TRet](T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6) at System.Dynamic.UpdateDelegates.UpdateAndExecute6[T0,T1,T2,T3,T4,T5,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5) at Microsoft.Scripting.Interpreter.FuncCallInstruction9.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run7[T0,T1,T2,T3,T4,T5,T6,TRet](T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6) at Microsoft.Scripting.Interpreter.DynamicInstruction7.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.Interpreter.Run(InterpretedFrame frame) at Microsoft.Scripting.Interpreter.LightLambda.Run5[T0,T1,T2,T3,T4,TRet](T0 arg0, T1 arg1, T2 arg2, T3 arg3, T4 arg4) at System.Dynamic.UpdateDelegates.UpdateAndExecute4[T0,T1,T2,T3,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2, T3 arg3) at IronPython.Runtime.FunctionCaller2.Call2(CallSite site, CodeContext context, Object func, T0 arg0, T1 arg1) at IronPython.Runtime.Method.MethodBinding1.SelfTarget(CallSite site, CodeContext context, Object target, T0 arg0) at System.Dynamic.UpdateDelegates.UpdateAndExecute3[T0,T1,T2,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2) 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.TryLoadMetaPathModule(CodeContext context, String fullName, PythonList path, Object& ret) 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.ImportBottom(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 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.ExecuteFile(String path, ScriptScope scope) at AdsterraAutoReturn.Controllers.ProcessPubsCsvSetController.SendEmailsCreateDeals(String pubsCsv) in D:\AtFy\Dev\Projects\CSharp\AdsterraAutoReturn\AdsterraAutoReturn\Controllers\ProcessPubsCsvSetController.cs:line 59 at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(ActionContext actionContext, IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask1 actionResultValueTask) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync() --- End of stack trace from previous location --- at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope) at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger) at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext) at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider) at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context) 
Steps to Reproduce

Create a Python 3.9 script with "from future import annotations"
Try to run it via .NET environment.

Expected behavior:
I simpy expect all the libraries to be imported correctly.
Actual behavior:
I got this error I've described.
Version Information

IronPython - 3.4.1
.NET platform used  - .net
Version of the .NET platform used - 7.0
Operating system used - Windows 11 Pro
Value of sys.version, from imported module sys - where do I find it?

Closing comment (2024-02-24T15:04:43Z): __future__.annotations was added in Python 3.7 and so is not available in IronPython 3.4 (which is based on Python 3.4).
This is a duplicate of #1675