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Using String.Format crashes inside pythonnet

See original GitHub issue

Environment

Pythonnet version: 3.x
Python version: 3.8.10
Operating System: Windows 11 64bit
.NET Runtime: net6.0

Details

How to reproduce(with project Console.vsproj): @filmor

PythonEngine.Initialize();
PythonEngine.Exec("from System import String\nString.Format('{0},{1}', 1, 2)"); // crashes here
int i = Runtime.Py_Main(cmd.Length, cmd);
PythonEngine.Shutdown();

Issue Analytics

State:
Created 2 years ago
Comments:15 (12 by maintainers)

Top GitHub Comments

1reaction

sekkitcommented, Dec 23, 2021

System.AccessViolationException: ‘Attempted to read or write protected memory. This is often an indication that other memory is corrupt.’ [External Code]

Python.Runtime.dll!Python.Runtime.Runtime.PyErr_Occurred() Line 1853 C# Python.Runtime.dll!Python.Runtime.Exceptions.ErrorOccurred() Line 315 C# Python.Runtime.dll!Python.Runtime.Runtime.AssertNoErorSet() Line 1130 C# Python.Runtime.dll!Python.Runtime.Runtime.PyObject_Str(Python.Runtime.BorrowedReference pointer) Line 1122 C# Python.Runtime.dll!Python.Runtime.PyObject.ToString() Line 1054 C# [External Code] Python.Runtime.dll!Python.Runtime.MethodBinder.Invoke(Python.Runtime.BorrowedReference inst, Python.Runtime.BorrowedReference args, Python.Runtime.BorrowedReference kw, System.Reflection.MethodBase info, System.Reflection.MethodInfo[] methodinfo) Line 919 C# Python.Runtime.dll!Python.Runtime.MethodObject.Invoke(Python.Runtime.BorrowedReference target, Python.Runtime.BorrowedReference args, Python.Runtime.BorrowedReference kw, System.Reflection.MethodBase info) Line 68 C# Python.Runtime.dll!Python.Runtime.MethodBinding.tp_call(Python.Runtime.BorrowedReference ob, Python.Runtime.BorrowedReference args, Python.Runtime.BorrowedReference kw) Line 238 C# [External Code] Python.Runtime.dll!Python.Runtime.Runtime.PyRun_String(string code, Python.Runtime.RunFlagType st, Python.Runtime.BorrowedReference globals, Python.Runtime.BorrowedReference locals) Line 941 C# Python.Runtime.dll!Python.Runtime.PythonEngine.RunString(string code, Python.Runtime.BorrowedReference globals, Python.Runtime.BorrowedReference locals, Python.Runtime.RunFlagType flag) Line 670 C# Python.Runtime.dll!Python.Runtime.PythonEngine.Exec(string code, Python.Runtime.PyDict globals, Python.Runtime.PyObject locals) Line 578 C# nPython.exe!Python.Runtime.PythonConsole.Main(string[] args) Line 36 C#

0reactions

lostmsucommented, Mar 3, 2022

@sekkit @filmor FYI, the workaround we are planning is going to be somewhat misleading. In your example if you added integer format specifiers, and still used number literals in Python, you would get your format specifiers ignored.

UPD. NVM, I will just add IFormattable implementation to PyInt.