def read(self, filename):
self.rc = SimpleResourceCollection(filename)
colors = map(lambda i: find_key("color" + str(i), self.rc.db), range(16))
if not any(colors):
raise ConverterError("xrdb does not contain any color info")
for index, color in enumerate(colors):
self._palette.set_color(Color.from_string(color), index)
return self._palette
