+def get_units_from_category(category):
+ units = sorted(category.iterkeys())
+
+ # do not display .base_unit description key
+ del units[0]
+
+ return units
+
+
+def get_base_unit(categoryName):
+ return UNIT_DESCRIPTIONS[categoryName][".base_unit"]
+
+
+def get_base_unit_from_category(category):
+ return category[".base_unit"]
+
+