Closed
Description
Environment
- Pythonnet version:3.0.0.0
- Python version:3.8.5
- Operating System: Ubuntu 18.04 (Windows 10, WSL 2.0)
- .NET Runtime: Dotnet Core 5.0.201
Details
I am trying to execute a Python file in a dotnet core program. I get the newest source code from github, and compiled it successfully as a DLL accoding the guidence. The version of the DLL is 3.0.0.0. I add this DLL as a reference of the project, and compile the project successfully. And then I use the command 'dotnet run' to execute the code. An exception occours with message: Unhandled exception. System.TypeInitializationException: The type initializer for 'Python.Runtime.UcsMarshaler' threw an exception.
Code
program.cs
The exception occurs when trying to execute the line: PythonEngine.PythonHome = "/home/leo/Anaconda3";
using Python.Runtime;
using System;
using System.IO;
namespace PythonDotNet
{
class Program
{
static void Main(string[] args)
{
try
{
PythonEngine.PythonHome = "/home/leo/Anaconda3";
PythonEngine.Initialize();
var script = File.ReadAllText("t1.py");
PyDict locals = new PyDict();
PythonEngine.Exec(script, null, locals.Handle);
}
finally
{
PythonEngine.Shutdown();
Console.WriteLine("Done...");
Console.ReadKey();
}
}
}
}python_dotnet.csproj
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net5.0</TargetFramework>
</PropertyGroup>
<ItemGroup>
<Reference Include="Python.Runtime">
<HintPath>ref/Python.Runtime.dll</HintPath>
</Reference>
</ItemGroup>
<ItemGroup>
<None Update="t1.py">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
</ItemGroup>
</Project>
command to run
dotnet runException
The error message indicates that there is a file named 'lidbl.so'.
Unhandled exception. System.TypeInitializationException: The type initializer for 'Python.Runtime.UcsMarshaler' threw an exception.
---> System.TypeInitializationException: The type initializer for 'Delegates' threw an exception.
---> System.TypeInitializationException: The type initializer for 'Python.Runtime.Runtime' threw an exception.
---> System.DllNotFoundException: Unable to load shared library 'libdl.so' or one of its dependencies. In order to help diagnose loading problems, consider setting the LD_DEBUG environment variable: liblibdl.so: cannot open shared object file: No such file or directory
at Python.Runtime.Platform.LinuxLoader.dlerror()
at Python.Runtime.Platform.LinuxLoader.ClearError() in /home/leo/project/pythonnet/src/runtime/platform/LibraryLoader.cs:line 90
at Python.Runtime.Platform.LinuxLoader.GetFunction(IntPtr dllHandle, String name) in /home/leo/project/pythonnet/src/runtime/platform/LibraryLoader.cs:line 78
at Python.Runtime.Runtime.GetDefaultDllName() in /home/leo/project/pythonnet/src/runtime/runtime.cs:line 42
at Python.Runtime.Runtime..cctor() in /home/leo/project/pythonnet/src/runtime/runtime.cs:line 34
--- End of inner exception stack trace ---
at Python.Runtime.Runtime.Delegates..cctor() in /home/leo/project/pythonnet/src/runtime/runtime.cs:line 2251
--- End of inner exception stack trace ---
at Python.Runtime.Runtime.Delegates.get_PyUnicode_GetMax() in /home/leo/project/pythonnet/src/runtime/runtime.cs:line 2688
at Python.Runtime.Runtime.PyUnicode_GetMax() in /home/leo/project/pythonnet/src/runtime/runtime.cs:line 1559
at Python.Runtime.UcsMarshaler..cctor() in /home/leo/project/pythonnet/src/runtime/CustomMarshaler.cs:line 44
--- End of inner exception stack trace ---
at Python.Runtime.UcsMarshaler.Py3UnicodePy2StringtoPtr(String s) in /home/leo/project/pythonnet/src/runtime/CustomMarshaler.cs:line 124
at Python.Runtime.PythonEngine.set_PythonHome(String value) in /home/leo/project/pythonnet/src/runtime/pythonengine.cs:line 97
at PythonDotNet.Program.Main(String[] args) in /home/leo/project/python_dotnet/Program.cs:line 14
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