[BUG] Difference among distutils.sysconfig.get_python_inc()

setuptools version

65.3.0

Python version

3.9.2

OS

Linux

Additional environment information

My env is in a docker.

Description

Hi there, i find that setuptools 65.3.0 hack the distutils. I want to get the include dir of python
And i found that

before install setuptools

python -c 'import distutils.sysconfig; print(distutils.sysconfig.get_python_inc())'

and get /opt/aaa/python/python-3.9.2/include/python3.9

after install that

python -c 'import distutils.sysconfig; print(distutils.sysconfig.get_python_inc())'

and get /devcloud/ws/sirFh/workspace/j_VWBQ8FGA/aaa_python/third_build/python/include/python3.9

/opt/aaa/python/python-3.9.2/include/python3.9 is the right anwser.
And /devcloud/ws/sirFh/workspace/j_VWBQ8FGA/aaa_python/third_build/python/include/python3.9 does not exist in my docker or even my machine

Expected behavior

Get the right include dir

How to Reproduce

import distutils.sysconfig; print(distutils.sysconfig.get_python_inc())

Output

python -c 'import distutils.sysconfig; print(distutils.sysconfig.get_python_inc())'

Start by reproducing the reported distutils.sysconfig.get_python_inc() command before and after installing setuptools 65.3.0 in the described Python 3.9.2 Linux Docker environment. Trace why the returned include directory changes, and consider the issue complete when the command returns the valid Python include directory rather than a nonexistent path.