Package is not listed in the repo sle-manager-tools12-updates-x86_64-sled-sp3, and no errors on syncs.

Did a package search in SUMA 3.1.7 and here is what was returned:

Package Name Channel
python-pyudev-0.16.1-1.11.noarch SLES12-SP3-Pool for x86_64
python-pyudev-0.16.1-1.11.noarch SLES12-SP2-Pool for x86_64
python-pyudev-0.16.1-1.11.noarch SLES12-SP1-Pool for x86_64
python-pyudev-0.15-9.el7.noarch CentOS 7 (x86_64)
python-pyudev-0.15-7.el7_2.1.noarch CentOS 7 (x86_64)