Level 5Exercise #123

Read nested attributes

Return objects ordered by profile.score descending.

What you’ll practice

This Level 5 exercise focuses on operator.attrgetter in the Algorithms curriculum. Solve the challenge prompt above using clear, idiomatic Python and the relevant language or standard-library tools.

Relevant Python reference: operator — Standard operators as functions.

Sample Test Cases

Example #1

Input:

(lambda: (User := __import__('collections').namedtuple('User', ['profile']), Profile := __import__('collections').namedtuple('Profile', ['score']), [u.profile.score for u in rank_profiles([User(Profile(50)), User(Profile(90))])])[2])()

Output:highest score first

Reference Solution

Reveal Reference Solution

def rank_profiles(users: list) -> list:
    from operator import attrgetter
    return sorted(users, key=attrgetter('profile.score'), reverse=True)

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Read nested attributes

What you’ll practice

Sample Test Cases

Further Reading

Reference Solution