File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/_emerge/depgraph.py",
line 9016, in _iter_virt_update
    new_child, ignore_use=True):
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/_emerge/depgraph.py",
line 4482, in _virt_deps_visible
    parent=pkg, priority=self._priority(runtime=True))
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/_emerge/depgraph.py",
line 4362, in _select_atoms_highest_available
    myroot=root, trees=trees)
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/portage/dep/dep_check.py",
line 718, in dep_check
    use_binaries=use_binaries, trees=trees)
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/portage/dep/dep_check.py",
line 272, in dep_zapdeps
    use_binaries=use_binaries, trees=trees)
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/portage/dep/dep_check.py",
line 363, in dep_zapdeps
    avail_pkg = mydbapi_match_pkgs(atom.without_use)
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/_emerge/depgraph.py",
line 8864, in match_pkgs
    pkg, existing = self._depgraph._select_package(self._root, atom)
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/_emerge/depgraph.py",
line 5278, in _select_pkg_highest_available
    ret = self._select_pkg_highest_available_imp(root, atom,
onlydeps=onlydeps, parent=parent)
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/_emerge/depgraph.py",
line 5459, in _select_pkg_highest_available_imp
    root, atom, onlydeps=onlydeps, parent=parent)
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/_emerge/depgraph.py",
line 5755, in _wrapped_select_pkg_highest_available_imp
    onlydeps=onlydeps):
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/_emerge/depgraph.py",
line 5196, in _iter_match_pkgs_atom
    installed=installed, onlydeps=onlydeps, myrepo=repo)
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/_emerge/depgraph.py",
line 6453, in _pkg
    metadata = zip(db_keys, db.aux_get(cpv, db_keys, myrepo=myrepo))
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/portage/dbapi/porttree.py",
line 532, in aux_get
    proc.start()
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/_emerge/AsynchronousTask.py",
line 30, in start
    self._start()
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/_emerge/EbuildMetadataPhase.py",
line 119, in _start
    fd_pipes=fd_pipes, returnpid=True)
  File
"/home/kristianf/ownCloud/Programming/Gentoo/portage/pym/portage/package/ebuild/doebuild.py",
line 688, in doebuild
    mf.checkFileHashes("EBUILD", os.path.basename(myebuild))
AttributeError: 'NoneType' object has no attribute 'checkFileHashes'
sys:1: ResourceWarning: unclosed file <_io.BufferedReader name='/dev/null'>