How to set multiple keys in sorted function python
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Title: Sorting Python Lists with Multiple Keys using the sorted() Function
Introduction:
Sorting lists in Python is a common operation, and the sorted() function provides a flexible way to achieve this. In some cases, you may need to sort a list based on multiple criteria. This tutorial will guide you through the process of using the sorted() function with multiple keys to achieve more complex sorting in Python.
Before diving into multiple keys, let's start with a quick overview of sorting using a single key. The sorted() function takes an iterable and returns a new sorted list. You can provide the key parameter to specify a function that determines the sorting order.
To sort based on multiple keys, you can provide a tuple of functions to the key parameter. The sorting will be done in the order of the functions in the tuple.
In this example, the list is first sorted by the 'grade' key, and then within each grade, the sorting is done based on the 'age' key.
You can also sort in descending order by setting the reverse parameter to True.
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