Import error with Revit Python Shell

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1

Hi guys,

I am using Revit 2024.1 on Windows 10. I installed RPS 2.0.2 and pyRevit v4.8.13.23182.

I got the following error when executing ‘import pyrevit.forms’ on RPS:

Exception : System.Exception: PyRevitCPythonNotSupported
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.Method.MethodBinding.SelfTarget(CallSite site, CodeContext context, Object target)
at System.Dynamic.UpdateDelegates.UpdateAndExecute2[T0,T1,TRet](CallSite site, T0 arg0, T1 arg1)
at Microsoft.Scripting.Interpreter.FuncCallInstruction5.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.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 System.Dynamic.UpdateDelegates.UpdateAndExecute4[T0,T1,T2,T3,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2, T3 arg3) 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 _check_name_wrapper$89(Closure , PythonFunction , Object , Object , Object , Object )
at System.Dynamic.UpdateDelegates.UpdateAndExecute4[T0,T1,T2,T3,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2, T3 arg3)
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.ImportNestedModule(CodeContext context, PythonModule module, ArraySegment1 parts, PythonList path, String scopeModuleName) at IronPython.Runtime.Importer.ImportModuleFrom(CodeContext context, Object from, ArraySegment1 parts, Object root)
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 IronPython.Runtime.Importer.ImportLightThrow(CodeContext context, String fullName, PythonTuple from, Int32 level)
at Microsoft.Scripting.Interpreter.FuncCallInstruction`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 Microsoft.Scripting.Hosting.ScriptSource.Execute(ScriptScope scope)
at Microsoft.Scripting.Hosting.ScriptSource.ExecuteAndWrap(ScriptScope scope, ObjectHandle& exception)

Any suggestion on how to resolve this issue?

Thank you.

2

Welp, the first thing that comes to mind is that Revit Python Shell 2.0 has switched to IronPython 3.4, and pyrevit has not.

So I’m thinking you’re running into a python version issue
The exception message starts with this
Exception : System.Exception: PyRevitCPythonNotSupported

Sooooo, how do you fix this?
Install an older version of RPS, I use the latest 1.X version for the time being.

I don’t know what the plans are for 3.4 integration atm.