setuptools version

76.0.0

Python version

All

OS

Windows

Additional environment information

No response

Description

_distutils/compilers/C/msvc.py does not define the shared_lib_format attribute. Here is line 260:

static_lib_format = static_lib_format = '%s%s'

It used to be

static_lib_format = shared_lib_format = '%s%s'

but was broken with this commit: 19e9575#diff-f9638b451b134f36d333164e25a77ede338e15822339b99851e4f345a76052c4R259

Expected behavior

shared_lib_format should be available again

How to Reproduce

Perform a build that produces shared objects with MSVC

Output