https://bugzilla.redhat.com/show_bug.cgi?id=2163339
--- Comment #5 from Jerry James loganjerry@gmail.com --- Using that sequence, the mingw-python-pyproject-hooks bootstrap build succeeds, but the mingw-python-build package fails to build:
+ /usr/bin/python3.11 -m build -n -w -o dist_win32 * Getting build dependencies for wheel...
Traceback (most recent call last): File "/usr/i686-w64-mingw32/lib/python3.11/site-packages/pyproject_hooks/_impl.py", line 321, in _call_hook raise BackendUnavailable(data.get('traceback', '')) pyproject_hooks._impl.BackendUnavailable: Traceback (most recent call last): File "/usr/i686-w64-mingw32/lib/python3.11/site-packages/pyproject_hooks/_in_process/_in_process.py", line 77, in _build_backend obj = import_module(mod_path) ^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/i686-w64-mingw32/sys-root/mingw/lib/python3.11/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "<frozen importlib._bootstrap>", line 1206, in _gcd_import File "<frozen importlib._bootstrap>", line 1178, in _find_and_load File "<frozen importlib._bootstrap>", line 1128, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed File "<frozen importlib._bootstrap>", line 1206, in _gcd_import File "<frozen importlib._bootstrap>", line 1178, in _find_and_load File "<frozen importlib._bootstrap>", line 1142, in _find_and_load_unlocked ModuleNotFoundError: No module named 'flit_core'
ERROR Backend 'flit_core.buildapi' is not available.
I added BRs for mingw32-python3-flit-core and mingw64-python3-flit-core to a checkout of the mingw-python-build repository and rebuilt. That worked. Full review in the next comment.