How to Use Python Lambda With the Sort Method

You’ll see how to use a lambda for the key of the sort() method of lists. sort() has two parameters. key is None by default. reverse is False by default.

You won’t be altering reverse, but you will be looking at key because you can use a lambda expression to alter the behavior of sort(). When you use lambda, you can extend key to be much more versatile.

[LivePython]

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[traal]

This is one way to explain lambda functions, yes, but it’s not the most pythonic code in the world. I wish you would at least mention itemgetter and attrgetter from the standard library, which is what I would use in production.

[szymonf]

Thanks mate, especially for the way how to sort a list of objects.

[TheSlyProductions]

Really clear and simple explanations! Is there a way to define how a class should be sorted within the class? So that every time you wanted to compare objects you wouldn't need a lambda function?

[aspirin]

So easy to learn, thank you very much.

[spacenodus]

Do you want to master Machine Learning ? So do I

[caioandrade]

wow you overcomplicate things for no reason, like, why using lower() for no reason at the names sorting as a first example?