Add obsolete macros for python subpackages.

cryptsetup.spec

@@ -2,6 +2,8 @@
 
 %if 0%{?fedora}
 %if 0%{?fedora} >= 29
+Obsoletes: python2-cryptsetup
+Obsoletes: python3-cryptsetup
 %global python2_enable 0
 %global python3_enable 0
 %else
@@ -20,7 +22,7 @@
 Summary: A utility for setting up encrypted disks
 Name: cryptsetup
 Version: 2.0.3
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: GPLv2+ and LGPLv2+
 Group: Applications/System
 URL: https://gitlab.com/cryptsetup/cryptsetup
@@ -230,6 +232,9 @@ popd
 %clean
 
 %changelog
+* Fri May 04 2018 Ondrej Kozina <okozina@redhat.com> - 2.0.3-2
+- Add missing 'Obsoletes' macros for python subpackages.
+
 * Fri May 04 2018 Milan Broz <gmazyland@gmail.com> - 2.0.3-1
 - Update to cryptsetup 2.0.3.