What are itertools permutations in Python?

Can you explain what itertools permutations do in Python?

Sure! The itertools.permutations function generates all possible permutations of a given iterable.

How do I use itertools permutations to get permutations of a list?

You can use it like this: import itertools; list(itertools.permutations([1, 2, 3])) will give you all permutations of the list.

What if I want to limit the length of the permutations?

You can specify the length as a second argument: itertools.permutations([1, 2, 3], 2) will give you 2-length permutations.

Can I get permutations of a string as well?

Yes, you can! Just pass a string to the function, like itertools.permutations('abc'), to get permutations of the characters.