Sorting lists in Python can be done using the `sorted()` function or the `sort()` method. Both of these functions accept a sort key lambda as an argument, which is a small anonymous function that helps to determine how elements should be sorted. This blog post will provide examples of how to use sort key lambdas with both the `sorted()` and `sort()` methods for sorting numbers and strings.

In Python, you can use the `sorted()` function or the `sort()` method along with a sort key lambda to sort a list. The sort key lambda is a small anonymous function that you pass as an argument to help sort the list.

Here’s an example of how to use a sort key lambda to sort a list of numbers in descending order:

Here’s another example of how to use a sort key lambda to sort a list of strings by their length:

The `sort()` method sorts the list in-place and doesn’t return a new list. On the other hand, the `sorted()` function returns a new sorted list, preserving the order of the original list.

This blog post demonstrates how to use the `sorted()` function or the `sort()` method along with a sort key lambda to sort lists in Python. It provides two examples of sorting numbers and strings by their length, respectively. The main difference between these functions is that the `sort()` method sorts the list in-place while the `sorted()` function returns a new sorted list preserving the order of original one.