Ebuild 0.71 has a missing or malformed copyright/licensing header.
[Notice] Ebuild 0.71 has an invalid header. It should start with a valid copyright line (e.g., '# Copyright YEARS MAIN-CONTRIBUTOR') and the GPLv2 distribution text followed by an empty line.
[Error] Manifest entry for unused DIST file 'pytlv-0.71.tar.gz'
[Error] Repository is missing a repo-name in metadata/layout.conf or profiles/repo_name
[Notice] Package has only unstable keywords for arch(es): [ amd64 ], all versions are unstable: [ 0.71 ]
[Error] Invalid or missing metadata.xml: open dev-python/pytlv/metadata.xml: file does not exist