coding-mentor-agent/kb/python-course-kb-practical-python/wiki/exercises/7-6-sorting-on-a-field-with-lambda.md

id, source_exercise_id, title, section, source_path, source_repo, source_commit, student_visible_solution, has_private_solution, skip

id	source_exercise_id	title	section	source_path	source_repo	source_commit	student_visible_solution	has_private_solution	skip
practical-python-7.6	7.6	Sorting on a field with lambda	7.2 Anonymous Functions and Lambda	07_Advanced_Topics/02_Anonymous_function.md	https://github.com/dabeaz-course/practical-python	93dca856b41c61a0a0f85ae334116e4c125629ea	false	false	false

Exercise 7.6: Sorting on a field with lambda

Source: Practical Python Programming, 07_Advanced_Topics/02_Anonymous_function.md.

Exercise 7.6: Sorting on a field with lambda

Try sorting the portfolio according the number of shares using a lambda expression:

>>> portfolio.sort(key=lambda s: s.shares)
>>> for s in portfolio:
        print(s)

... inspect the result ...
>>>

Try sorting the portfolio according to the price of each stock

>>> portfolio.sort(key=lambda s: s.price)
>>> for s in portfolio:
        print(s)

... inspect the result ...
>>>

Note: lambda is a useful shortcut because it allows you to define a special processing function directly in the call to sort() as opposed to having to define a separate function first.

Contents | Previous (7.1 Variable Arguments) | Next (7.3 Returning Functions)

关联来源

• summaries/02_Anonymous_function