How would i go about adding up numbers in a dict

[TFish]

how would i add up the cost in this dict

foodstest = {'Dempsters Whole Wheat Bread': {"cost":2.27, "servings":18, "calories":1620},
             "Dempsters White Bread": {"cost":2.27, "servings":18, "calories":1620},
             "Dempsters Everything Bagels":{"cost":2.98, "servings":12, "calories":1200}}

[buran]

you need to iterate over items in foodtest and for each item, retrieve cost and sum.
as one-liner

total_cost = sum([value['cost'] for value in foodstest.values()])
print(total_cost)

in slow-motion

total_cost = 0
for value in foodstest.values():
    total_cost += value['cost']
print(total_cost)

to avoid getting KeyError if cost is missing, you can replace
value['cost'] with value.get('cost', 0)

[TFish]

Ok thank you