[issue28214] Improve exception reporting for problematic __set_name__ attributes

[Stéphane Wirtel]

Stéphane Wirtel added the comment:

Serhiy,

I don't find the _PyErr_FormatFromCause function in the code of CPython.

Modules/_tracemalloc.o Modules/hashtable.o  Modules/symtablemodule.o  Modules/xxsubtype.o -lpthread -ldl  -lutil   -lm  
Objects/typeobject.o: In function `set_names':
/home/stephane/src/python/cpython/Objects/typeobject.c:7026: undefined reference to `_PyErr_FormatFromCause'
collect2: error: ld returned 1 exit status
Makefile:736: recipe for target 'Programs/_freeze_importlib' failed
make: *** [Programs/_freeze_importlib] Error 1

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nosy: +matrixise

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<http://bugs.python.org/issue28214>
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