https://bugzilla.redhat.com/show_bug.cgi?id=1413474
--- Comment #9 from VincentS vincent@casperlefantom.net --- Ok, I checked, now they match: sha256sum pycdlib-1.1.0.tar.gz rpmbuild/SOURCES/pycdlib-1.1.0.tar.gz ae0d2aa92dbb40849666f4bcdd9b2c89f1c4e38cdd42bcb9a89a9e9aab8f14f6 pycdlib-1.1.0.tar.gz ae0d2aa92dbb40849666f4bcdd9b2c89f1c4e38cdd42bcb9a89a9e9aab8f14f6 rpmbuild/SOURCES/pycdlib-1.1.0.tar.gz
Sorry, it's true, there is already Python3 support.
Your package seems ok for me.
PS: Please pay attention to the files versions.