Counting the amount of occurrences in a list of tuples

Question

I am fairly new to python, but I haven\'t been able to find a solution to my problem anywhere.

I want to count the occurrences of a string inside a list of tuples.

Answer 1

I needed some extra functionality that Counter didn't have. I have a list of tuples that the first element is the key and the second element is the amount to add. @jamylak solution was a great adaptation for this!

>>> list = [(0,5), (3,2), (2,1), (0,2), (3,4)]

>>> d = {}
>>> for x, y in list1:
    d[x] = d.get(x, 0) + y

>>> d
{0: 7, 2: 1, 3: 6}