diff --git a/python-crcmod.changes b/python-crcmod.changes
index a7923a5..9ca9a74 100644
--- a/python-crcmod.changes
+++ b/python-crcmod.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Aug 24 13:35:06 UTC 2017 - jmatejek@suse.com
+
+- singlespec auto-conversion
+
 -------------------------------------------------------------------
 Fri Feb 14 11:47:05 UTC 2014 - rschweikert@suse.com
 
@@ -8,3 +13,4 @@ Sun Nov 27 00:58:43 UTC 2011 - jfunk@funktronics.ca
 
 - Initial release
 
+
diff --git a/python-crcmod.spec b/python-crcmod.spec
index bd077ec..2ff75be 100644
--- a/python-crcmod.spec
+++ b/python-crcmod.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package python-crcmod
 #
-# Copyright (c) 2014 SUSE LINUX Products GmbH, Nuernberg, Germany.
+# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -16,21 +16,24 @@
 #
 
 
+%{!?python_sitelib: %global python_sitelib %(python -c "from distutils.sysconfig import get_python_lib; print get_python_lib()")}
+%{!?python_sitearch: %global python_sitearch %(python -c "from distutils.sysconfig import get_python_lib; print get_python_lib(1)")}
+%{?!python_module:%define python_module() python-%{**} python3-%{**}}
 Name:           python-crcmod
 Version:        1.7
 Release:        0
-Url:            http://crcmod.sourceforge.net/
 Summary:        CRC Generator
 License:        MIT
 Group:          Development/Languages/Python
-Source:         http://pypi.python.org/packages/source/c/crcmod/crcmod-%{version}.tar.gz
+Url:            http://crcmod.sourceforge.net/
+Source:         https://files.pythonhosted.org/packages/source/c/crcmod/crcmod-%{version}.tar.gz
+BuildRequires:  %{python_module devel}
+BuildRequires:  python-rpm-macros
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
-BuildRequires:  python-devel
 %if 0%{?suse_version}
 %py_requires
 %endif
-%{!?python_sitelib: %global python_sitelib %(%{__python} -c "from distutils.sysconfig import get_python_lib; print get_python_lib()")}
-%{!?python_sitearch: %global python_sitearch %(%{__python} -c "from distutils.sysconfig import get_python_lib; print get_python_lib(1)")}
+%python_subpackages
 
 %description
 The software in this package is a Python module for generating objects that
@@ -50,12 +53,13 @@ C/C++ source code that can be used in another application.
 %setup -q -n crcmod-%{version}
 
 %build
-CFLAGS="%{optflags}" python setup.py build
+export CFLAGS="%{optflags}"
+%python_build
 
 %install
-python setup.py install --prefix=%{_prefix} --root=%{buildroot}
+%python_install
 
-%files
+%files %{python_files}
 %defattr(-,root,root,-)
 %doc LICENSE README changelog docs/html
 %{python_sitearch}/*