Add a python3 subpackage.

- Build the python bindings for both python2 and python3.
- Update requires and provides to be explicit about python versions.

i2c-tools.spec

@@ -6,7 +6,7 @@
 
 Name:           i2c-tools
 Version:        3.1.2
-Release:        6%{?dist}
+Release:        7%{?dist}
 Summary:        A heterogeneous set of I2C tools for Linux
 License:        GPLv2+
 URL:            https://i2c.wiki.kernel.org/index.php/I2C_Tools
@@ -15,7 +15,7 @@ Source0:        https://www.kernel.org/pub/software/utils/i2c-tools/%{name}-%{ve
 # for /etc/udev/makedev.d resp /etc/modprobe.d ownership
 Requires:       udev module-init-tools
 BuildRequires:  perl-generators
-BuildRequires:  python-devel
+BuildRequires:  python2-devel python3-devel
 ExcludeArch:    s390 s390x
 
 %description
@@ -41,14 +41,23 @@ what you are doing.
 Provides: %{name}-python = %{version}-%{release}
 Provides: %{name}-python%{?_isa} = %{version}-%{release}
 Obsoletes: %{name}-python < %{version}-%{release}
-Summary:        Python bindings for Linux SMBus access through i2c-dev
+Summary:        Python 2 bindings for Linux SMBus access through i2c-dev
 
 %description -n python2-i2c-tools
+Python 2 bindings for Linux SMBus access through i2c-dev
+
+%package -n python3-i2c-tools
+%{?python_provide:%python_provide python3-i2c-tools}
+Summary:        Python 3 bindings for Linux SMBus access through i2c-dev
+
+%description -n python3-i2c-tools
+Python 3 bindings for Linux SMBus access through i2c-dev
 
 %package perl
 Summary:        i2c tools written in Perl
 
 %description perl
+A collection of tools written in perl for use with i2c devices.
 
 %package devel
 Summary:        Header files for i2c-tools
@@ -65,7 +74,8 @@ pushd eepromer
 make CFLAGS="$RPM_OPT_FLAGS -I../include"
 popd
 pushd py-smbus
-CFLAGS="$RPM_OPT_FLAGS -I../include" %{__python} setup.py build
+CFLAGS="$RPM_OPT_FLAGS -I../include" %{__python2} setup.py build -b build-py2
+CFLAGS="$RPM_OPT_FLAGS -I../include" %{__python3} setup.py build -b build-py3
 popd
 
 
@@ -76,7 +86,8 @@ install -m 755 eepromer/{eepromer,eeprom,eeprog} \
 install -m 644 eepromer/{eepromer,eeprom,eeprog}.8 \
   $RPM_BUILD_ROOT%{_mandir}/man8
 pushd py-smbus
-%{__python} setup.py install --skip-build --root=$RPM_BUILD_ROOT
+%{__python2} setup.py build -b build-py2 install --skip-build --root=$RPM_BUILD_ROOT
+%{__python3} setup.py build -b build-py3 install --skip-build --root=$RPM_BUILD_ROOT
 popd
 # cleanup
 rm -f $RPM_BUILD_ROOT%{_bindir}/decode-edid.pl
@@ -127,9 +138,11 @@ exit 0
 
 %files -n python2-i2c-tools
 %doc py-smbus/README
-#/usr/lib64/python2.7/site-packages/smbus-1.1-py2.7.egg-info
-#/usr/lib64/python2.7/site-packages/smbus.so
-%{python_sitearch}/*
+%{python2_sitearch}/*
+
+%files -n python3-i2c-tools
+%doc py-smbus/README
+%{python3_sitearch}/*
 
 %files perl
 %{_bindir}/decode-*
@@ -142,6 +155,9 @@ exit 0
 
 
 %changelog
+* Sat Oct 7 2017 Troy Curtis, Jr <troycurtisjr@gmail.com> - 3.1.2-7
+- Add Python3 subpackage.
+
 * Sun Aug 20 2017 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 3.1.2-6
 - Add Provides for the old name without %%_isa