Missing dev-python/matplotlib dependency for app-office/openerp-7.0. It is documented in http://doc.openerp.com/trunk/developers/server/01_getting_started/#installation-from-sources and the file /usr/openerp/addons/resource/faces/timescale.py imports matplotlib.cbook Reproducible: Always
+ 11 Mar 2013; Patrick Lauer <patrick@gentoo.org> + openerp-7.0.20130219-r5.ebuild: + Adding matplotlib dep #460584