[C++] Arrow fails to build with python 3.12 #40566
Description
Describe the bug, including details regarding any error messages, version, and platform.
Specifically, I am trying to build pyarrow but hit the following error:
-- Found Python3: /pkg/main/dev-lang.python.core.3.12.2/bin/python3 (found version "3.12.2") found components: Interpreter Development.Module NumPy
CMake Error at cmake_modules/FindPython3Alt.cmake:77 (message):
Python 3 config failure:
Traceback (most recent call last):
File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'distutils'
Call Stack (most recent call first):
CMakeLists.txt:262 (find_package)
-- Configuring incomplete, errors occurred!
This is due to the code at https://github.com/apache/arrow/blob/main/cpp/cmake_modules/FindPython3Alt.cmake#L70 which uses distutils to obtain EXT_SUFFIX which is not valid on python 3.12.
I would suggest using this code instead:
"import importlib.util; sysconfig = importlib.import_module('distutils.sysconfig') if importlib.util.find_spec('distutils') else importlib.import_module('sysconfig'); print(sysconfig.get_config_var('EXT_SUFFIX'))"
This will automatically import the right package depending on the availability of distutils and return the right value.
Component(s)
C++, Python