If you install printconf-gui, but not alchemist and run printconf-gui, this
Traceback (innermost last):
File "/usr/bin/printconf-gui", line 6, in ?
ImportError: No module named Alchemist
Install alchemist, and printconf-gui starts correctly.
There is no dependency in printconf-gui to alchemist, when there should be.
(Why printconf-gui isn't in the component list?)