Newbie question for sorting named tuple list

[Larz60+]

If you want to use tuples, see:
https://stackoverflow.com/questions/1208...field-name

however, consider using a dictionary:

debug = True

people = {
    'bob': {'Name': 'Bob', 'Age': 55, 'Height': 165, 'Weight': 70},
    'doe': {'Name': 'Doe', 'Age': 45, 'Height': 185, 'Weight': 90},
    'john': {'Name': 'John', 'Age': 50, 'Height': 175, 'Weight': 85}
}

max_age = [None, 0]
max_height = [None, 0]
max_weight = [None, 0]

for person, values in people.items():
    if values['Age'] > max_age[1]:
        max_age[0] = values['Name']
        max_age[1] = values['Age']
    if values['Height'] > max_height[1]:
        max_height[0] = values['Name']
        max_height[1] = values['Height']
    if values['Weight'] > max_weight[1]:
        max_weight[0] = values['Name']
        max_weight[1] = values['Weight']

print(f'{max_age[0]} is the oldest at {max_age[1]} years.')
print(f'{max_height[0]} is the tallest at {max_height[1]} inches.')
print(f'{max_weight[0]} is the heaviest at {max_weight[1]} lbs.')

# if you are not using python 3.6, replace above with:
# print('{} is the oldest at {} years.'.format(max_age[0], max_age[1]))
# print('{} is the tallest at {} inches.'.format(max_height[0], max_height[1]))
# print('{} is the heaviest at {} lbs.'.format(max_weight[0], max_weight[1]))

results:

Output:
Bob is the oldest at 55 years.
Doe is the tallest at 185 inches.
Doe is the heaviest at 90 lbs.