Created attachment 390484 [details] build.log .
it appears to fail in other impls anyway. setup.py doesn't even list py3.3, so py3.4 at this stage is beyond its reach
*pysendfile-2.0.1 (18 Mar 2015) 18 Mar 2015; Ian Delaney <idella4@gentoo.org> +pysendfile-2.0.1.ebuild, -pysendfile-2.0.0.ebuild: bump; switch SRC_URI to pypi, remove test phase, see comment in ebuild, rm outdated ebuild py3.4 support added in bump