CODEWITHSUNDEEP
pythondictionary
user3413472
user3413472

Reputation: 91

How to add specific values together in a dictionary?

So I have a dictionary which looks like this:

d = {1:2, 2:4, 3:6, 4:8, 5:10}

Is there a way to add together multiple values? For example I want to add together every value from 1-3 that should give me 12.

Upvotes: 0

Views: 81

Answers (2)

ohmu
ohmu

Reputation: 19761

It sounds like you want to do something like:

>>> d = {1: 2, 2: 4, 3: 6, 4: 8, 5: 10}
>>> start = 1
>>> end = 3
>>> sum(d[i] for i in range(start, end + 1) if i in d)
12

This will sum the values from d for the keys 1-3 (inclusive).

Upvotes: 4

BoshWash
BoshWash

Reputation: 5440

Try this:

d = {1:2, 2:4, 3:6, 4:8, 5:10}

total = 0
for n in range(1, 3+1):
    if n in d:
        total += d[n]
print(total)

Upvotes: 0

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