diff --git a/python-packaging.spec b/python-packaging.spec
index 6c851ce..fbb206b 100644
--- a/python-packaging.spec
+++ b/python-packaging.spec
@@ -1,6 +1,7 @@
+%define pkgname %(echo %name | cut -d- -f2- | tr - _)
 Name:          python-packaging
-Version:       21.3
-Release:       2mamba
+Version:       23.0
+Release:       1mamba
 Summary:       Core utilities for Python packages
 Group:         System/Libraries
 Vendor:        openmamba
@@ -10,9 +11,7 @@ URL:           https://pypi.org/project/packaging/
 Source:        https://pypi.debian.net/packaging/packaging-%{version}.tar.gz
 License:       BSD, Apache License 2.0
 ## AUTOBUILDREQ-BEGIN
-BuildRequires: (python3.7dist(pyparsing) < 3.0.5 or python3.7dist(pyparsing) > 3.0.5)
 BuildRequires: libpython3-devel
-BuildRequires: python3.7dist(pyparsing)
 ## AUTOBUILDREQ-END
 
 %description
@@ -26,27 +25,30 @@ BuildRequires: python3.7dist(pyparsing)
 %setup -q -n packaging-%{version}
 
 %build
-CFLAGS="%{optflags}" %{__python} setup.py build
+CFLAGS="%{optflags}" %{__python} -m build --no-isolation --wheel
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%{__python} setup.py install \
-   -O1 --skip-build \
-   --root="%{buildroot}" \
-   --install-headers=%{python_inc} \
-   --install-lib=%{python_sitearch} \
-   --record=%{name}.filelist
+%{__python} -m installer --destdir=%{buildroot} dist/*.whl
 
-sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
+#%if "%{?with_pyver}" != "3"
+## Rename any conflicting file outside of python site packages tree
+#for f in %{_bindir}/pdm; do
+#   mv %{buildroot}${f}{,-%{?pyappend}}
+#done
 
-%files %{?pyappend} -f %{name}.filelist
+%files %{?pyappend}
 %defattr(-,root,root)
-%dir %{python_sitearch}/packaging-%{version}-py*.egg-info
-%{python_sitearch}/packaging-%{version}-py*.egg-info/*
-
+%dir %{python_sitelib}/%{pkgname}-%{version}.dist-info
+%{python_sitelib}/%{pkgname}-%{version}.dist-info/*
+%dir %{python_sitelib}/%{pkgname}
+%{python_sitelib}/%{pkgname}/*
 %doc LICENSE
 
 %changelog
+* Sun Jan 22 2023 Automatic Build System <autodist@mambasoft.it> 23.0-1mamba
+- automatic version update by autodist
+
 * Sun Apr 03 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 21.3-2mamba
 - rebuilt with python 3.10