Add py3.4 to PYTHON_COMPAT, run the test phase. ~/cvsPortage/gentoo-x86/dev-python/mock $ PYTHON_TARGETS=python3_4 ebuild mock-1.0.1-r1.ebuild clean test yields ---------------------------------------------------------------------- Ran 278 tests in 0.517s FAILED (SKIP=9, errors=32) * ERROR: dev-python/mock-1.0.1-r1::gentoo failed (test phase): * Tests fail with python3.4 See the upstream bug @ URL. All pass fine under lesser py3 versions. Refrain from filling bugzy with --info and build logs for now. It can be created by following line 1. Whether this prevents adding py3.4 support to mock has pros and cons. For now on my part I consider it safer to not do so.
fixed with mock-1.0.1-r2.ebuild