How to convert negative values to positive values before they are calculated in a generator expression with a slice?

The format of my JSON is as follows:

[
  ...
  {'minute': 87, 'value': -100},
  {'minute': 88, 'value': 4},
  {'minute': 89, 'value': -85},
  {'minute': 90, 'value': 4},
  {'minute': 90.5, 'value': 15}
]

To calculate the last 5 values I use:

response2 = requests.get(url2, headers=headers).json()
graphs = response2['graphPoints']

    sum(d["value"] for d in graphs["graphPoints"][-5:])

But I would like to convert these negative values to positive before they are calculated.

How I could do this in a simple or fast way without having to work with a list such as list_of_values = [] and then create a looping for value in list_of_values: to convert each value?

The current result is -100+4-85+4+15 = -162

The expected result is 100+4+85+4+15 = 208

>Solution :

Just use the abs function in your comprehension list:

sum(abs(d["value"]) for d in graphs["graphPoints"][-5:])