Binary should depend on the module

ydiff.spec.in

@@ -9,6 +9,7 @@ BuildRequires: python2-devel
 BuildArch: noarch
 
 Requires: less
+Requires: python2-%{name}
 %description
 Term based tool to view colored, incremental diff in a Git/Mercurial/Svn
 workspace or from stdin, with side by side (similar to diff -y) and auto