# Inventory System -- module (starter).
#
# Define two classes: Item and Inventory.

###################################################################
# Item class
###################################################################

class Item:
    def __init__(self, name, weight, value):
        # TODO: assign name, weight, value to self
        pass

    def describe(self):
        # TODO: return a string like "sword (3.5kg, 50g)"
        pass


###################################################################
# Inventory class
###################################################################

class Inventory:
    def __init__(self):
        # TODO: assign self.items = []
        pass

    def add(self, item):
        # TODO: self.items.append(item)
        pass

    def remove(self, name):
        # TODO: walk self.items; if an item has the matching name,
        # remove it and return it. Otherwise return None.
        pass

    def list(self):
        # TODO: print "Inventory (N items):" then each item on its
        # own line, then a totals line.
        pass

    def total_weight(self):
        # TODO: sum weights, return total
        pass

    def total_value(self):
        # TODO: sum values, return total
        pass