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Python: Calculate the maximum aggregate from the list of tuples (pairs)

Python Collections: Exercise-24 with Solution

Write a Python program to calculate the maximum aggregate from the list of tuples (pairs).

Sample Solution:

Python Code:

from collections import defaultdict
def max_aggregate(st_data):
    temp = defaultdict(int)
    for name, marks in st_data:
        temp[name] += marks
    return max(temp.items(), key=lambda x: x[1])


students = [('Juan Whelan',90),('Sabah Colley',88),('Peter Nichols',7),('Juan Whelan',122),('Sabah Colley',84)]
print("Original list:")
print(students)
print("\nMaximum aggregate value of the said list of tuple pair:")
print(max_aggregate(students))

Sample Output:

Original list:
[('Juan Whelan', 90), ('Sabah Colley', 88), ('Peter Nichols', 7), ('Juan Whelan', 122), ('Sabah Colley', 84)]

Maximum aggregate value of the said list of tuple pair:
('Juan Whelan', 212)

Flowchart:

Python Collections: Calculate the maximum aggregate from the list of tuples (pairs).

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Next: Write a Python program to find the characters in a list of strings which occur more than and less than a given number.

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Python: Tips of the Day

Inverts a dictionary with unique hashable values:

Example:

def tips_invert_dictionary(obj):
  return { value: key for key, value in obj.items() }
ages = {
  "Owen": 29,
  "Eddie": 15,
  "Jhon": 22,
}
print(tips_invert_dictionary(ages))

Output:

{29: 'Owen', 15: 'Eddie', 22: 'Jhon'}