# Python sum list of dictionary values | Example code

Use sum() and values() functions to sum a list of dictionary values dictionary in Python. But before that, you have to combine all the same keys add those keys’ values, and make one dictionary.

## Example sum list of dictionary values in Python

A simple example code sum up all the same key values into one in the dictionary. Accumulate the sum for the respective key using a for loop.

``````original_list = [
{'A': 1, 'B': 7, 'B': 5, 'C': 2, 'D': 5, 'E': 3, 'F': 9, 'G': 6, 'H': 4, 'X': 8},
{'A': 2, 'B': 7, 'B': 5, 'C': 2, 'D': 5, 'E': 3, 'F': 9, 'G': 6, 'H': 4, 'X': 8},
{'A': 1, 'B': 7, 'B': 5, 'C': 2, 'D': 5, 'E': 3, 'F': 9, 'G': 6, 'H': 4, 'X': 8},
]

result = {}
for elm in original_list:
for k, v in elm.items():

# Initialise it if it doesn't exist
if k not in result:
result[k] = 0

# accumulate sum seperately
result[k] += v

print(result)
``````

Output:

And if you want all values sump, use values() function and sum() function. Where dict.values() to return the values of a dictionary dict and sum(values) to return the sum of the values

``````original_list = [
{'A': 1, 'B': 7, 'B': 5, 'C': 2, 'D': 5, 'E': 3, 'F': 9, 'G': 6, 'H': 4, 'X': 8},
{'A': 2, 'B': 7, 'B': 5, 'C': 2, 'D': 5, 'E': 3, 'F': 9, 'G': 6, 'H': 4, 'X': 8},
{'A': 1, 'B': 7, 'B': 5, 'C': 2, 'D': 5, 'E': 3, 'F': 9, 'G': 6, 'H': 4, 'X': 8},
]

result = {}
for elm in original_list:
for k, v in elm.items():

# Initialise it if it doesn't exist
if k not in result:
result[k] = 0

# accumulate sum seperately
result[k] += v

value = result.values()

print(sum(value))
``````

Output: 130

Do comment if you have any doubts or suggestions on this Python sum program.

Note: IDE: PyCharm 2021.3.3 (Community Edition)

Windows 10

Python 3.10.1

All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.