Have you tried changing the ebuild?
from
Code:
DEPEND=">=virtual/python-2.5[sqlite]
>=dev-python/pygtk-2.12.0
spell? ( >=app-text/gtkspell-2.0.11-r1 )"
to
Code:
DEPEND=">=dev-python/pygtk-2.12.0
spell? ( >=app-text/gtkspell-2.0.11-r1 )"
then regenerate the manifest.