diff --git a/python-paramiko.spec b/python-paramiko.spec
index e17d5af..a33e4f9 100644
--- a/python-paramiko.spec
+++ b/python-paramiko.spec
@@ -1,6 +1,6 @@
 Name:          python-paramiko
 Version:       2.7.2
-Release:       1mamba
+Release:       2mamba
 Summary:       Paramiko SSH2 library for Python
 Group:         System/Libraries/Python
 Vendor:        openmamba
@@ -22,40 +22,57 @@ BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 %description
 Paramiko (a combination of the esperanto words for "paranoid" and "friend") is a module for python 2.3 or greater that implements the SSH2 protocol for secure (encrypted and authenticated) connections to remote machines. Unlike SSL (aka TLS), the SSH2 protocol does not require heirarchical certificates signed by a powerful central authority. You may know SSH2 as the protocol that replaced telnet and rsh for secure access to remote shells, but the protocol also includes the ability to open arbitrary channels to remote services across an encrypted tunnel. (This is how sftp works, for example.)
 
+%if "%?with_pyver"
+%define pyver           %{with_pyver}
+%define pyappend        py%{with_pyver}
+%define __python        %(rpm --eval %{__python%{with_pyver}})
+%define python_sitearch %(rpm --eval %{python%{with_pyver}_sitearch})
+%define python_sitelib  %(rpm --eval %{python%{with_pyver}_sitelib})
+%define python_inc      %(rpm --eval %{python%{with_pyver}_inc})
+%define python_version  %(rpm --eval %{python%{with_pyver}_version})
+%define python_provides %(rpm --eval %{python%{with_pyver}_provides})
+%define python_requires %(rpm --eval %{python%{with_pyver}_requires})
+%define py_requires     %(rpm --eval %{py%{with_pyver}_requires})
+
+%package py%{pyver}
+Group:         System/Libraries/Python
+Summary:       %{summary}.
+Requires:      python-bcrypt-%{?pyappend}
+Requires:      python-nacl-%{?pyappend}
+%py_requires
+
+%description py%{pyver}
+%{summary}.
+%endif
+
+
 %prep
-
 %setup -q -n paramiko-%{version}
-# https://bugs.launchpad.net/paramiko/+bug/411099
-chmod a-x demos/*
-
-sed -i -e '/^#!/,1d' demos/*
-
-for p in $(find . -name "*.py"); do
-   	sed -i 's|#!/usr/bin/python|#!%{__python}|' $p
-   	sed -i 's|#!/usr/bin/env python|#!%{__python}|' $p
-done
 
 %build
-CFLAGS="%{optflags}" %{__python} -c 'import setuptools; execfile("setup.py")' build
+CFLAGS="%{optflags}" %{__python} setup.py build
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%{__python} -c 'import setuptools; execfile("setup.py")' install --skip-build --root %{buildroot}
-
+%{__python} setup.py install \
+   -O1 --skip-build \
+   --root="%{buildroot}" \
+   --install-headers=%{_includedir}/python \
+   --install-lib=%{python_sitearch} \
+   --record=%{name}.filelist
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
-%files
+%files %{?pyappend} -f %{name}.filelist
 %defattr(-,root,root)
-%dir %{python_sitelib}/paramiko-%{version}*-py%{python_version}.egg-info
-%{python_sitelib}/paramiko-%{version}*-py%{python_version}.egg-info/PKG-INFO
-%{python_sitelib}/paramiko-%{version}*-py%{python_version}.egg-info/*.txt
-%dir %{python_sitelib}/paramiko
-%{python_sitelib}/paramiko/*.py*
-%doc LICENSE demos/
+%doc LICENSE
+#%doc demos/
 
 %changelog
+* Tue Sep 08 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 2.7.2-2mamba
+- rebuilt with py3* packages
+
 * Mon Aug 31 2020 Automatic Build System <autodist@mambasoft.it> 2.7.2-1mamba
 - automatic version update by autodist