Applying ./patches/0001-add-setup.py-to-avoid-depending-on-flit-for-building.patch using plaintext: 
patching file setup.py
* Getting build dependencies for wheel...

Traceback (most recent call last):
  File "/builder/shared-workdir/build/sdk/staging_dir/hostpkg/lib/python3.10/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 "/builder/shared-workdir/build/sdk/staging_dir/hostpkg/lib/python3.10/site-packages/pyproject_hooks/_in_process/_in_process.py", line 77, in _build_backend
    obj = import_module(mod_path)
  File "/builder/shared-workdir/build/sdk/staging_dir/target-arm_mpcore_musl_eabi/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'flit_scm'

ERROR Backend 'flit_scm:buildapi' is not available.
make[3]: *** [Makefile:45: /builder/shared-workdir/build/sdk/build_dir/target-arm_mpcore_musl_eabi/pypi/exceptiongroup-1.1.0/.built] Error 1
time: package/feeds/packages/python-exceptiongroup/compile#1.49#0.28#1.95