_ctypes_extend_error prints exception class string representation instead of exception class name

[chgnrdv]

Example:

>>> import ctypes
>>> lib = ctypes.CDLL("some_dll")
>>> lib.c_function.argtypes = [ctypes.c_char_p, ctypes.c_int]
>>> lib.c_function(123, "Foobar")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ctypes.ArgumentError: argument 1: <class 'TypeError'>: wrong type

Expected behavior is to print exception name ("TypeError") as stated in documentation:
https://github.com/python/cpython/blob/main/Doc/library/ctypes.rst#specifying-the-required-argument-types-function-prototypes

Possible solution is to use PyType_GetName instead of PyObject_Str at

cpython/Modules/_ctypes/callproc.c

Line 1019 in ad5e852

cls_str = PyObject_Str(tp);

but I'm not sure how to draw it up correctly.

• PR: gh-92119: Print exception class name instead of its representation #98302

• PR: [3.11] gh-92119: ctypes: Print exception class name instead of its representation (GH-98302) #99234

• PR: [3.10] gh-92119: ctypes: Print exception class name instead of its representation (GH-98302) #99235

• PR: [3.10] gh-92119: ctypes: Print exception class name instead of its representation (GH-98302) #99452