anchor.diff:      pathlib
       pyacoustid
       pyechonest
  +    pygobject_3
       pylast
       pyxdg
       pyyaml
  
positive.code: , enum34
  , flac
  , flask
  , imagemagick
  , itsdangerous
  , jellyfish
  
negative.code:     enum34
      flac
      flask
      # Need to for hook to set GI_TYPELIB_PATH
      gobject-introspection
      gstreamer
      imagemagick
      itsdangerous
      jellyfish
  