Sometimes, we want to generate all permutations of a list with Python.

In this article, we’ll look at how to generate all permutations of a list with Python.

How to generate all permutations of a list with Python?

To generate all permutations of a list with Python, we can use the itertools.permutations method.

For instance, we write:

import itertools

perms = list(itertools.permutations([1, 2, 3]))
print(perms)

We call itertools.permtations with a list to get all the permutations from.

It returns a iterator with all the permutations of [1, 2, 3].

Next, we convert the iterator to a list with list and assign it to perms.

Therefore, perms is:

[(1, 2, 3), (1, 3, 2), (2, 1, 3), (2, 3, 1), (3, 1, 2), (3, 2, 1)]

Conclusion

To generate all permutations of a list with Python, we can use the itertools.permutations method.