def checkRequirements(self, fit):
        char = fit.character
        reqs = {}
        for thing in itertools.chain(fit.modules, fit.drones, (fit.ship,)):
            for attr in ("item", "charge"):
                subThing = getattr(thing, attr, None)
                if subThing is not None:
                    for req, level in subThing.requiredSkills.iteritems():
                        currLevel = reqs.get(req)
                        if currLevel is None or level > currLevel and (char is None or char.getSkill(req).level < currLevel):
                            reqs[req] = level

        return reqs