Mastering the Art of Sorting Nested Lists in Python

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Mastering the Art of Sorting Nested Lists in Python

What is a Nested List?

A nested list is a list that contains other lists as its elements. Here's a nested list example:

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In this example, nested_list is composed of three sublists, each containing numeric values.

Sorting Nested Lists

When it comes to sort nested lists, two common tasks are the internal sorting of each sublist and sorting the overall nested list based on an element of each sublist.

Sorting Each Sublists Individually

To sort each sublist, you can use a list comprehension combined with the sorted() function:

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This will output:

[[See Video to Reveal this Text or Code Snippet]]

Each sublist is now sorted in ascending order.

Sorting the Overall Nested List

To sort the overall nested list based on the first element of each sublist, you can use the sorted() function with a custom key:

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This will produce:

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The nested list is sorted primarily by the first element of each sublist.

It is a method that modifies the list in place.

It does not return a new list.

For example:

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sorted(list):

It returns a new sorted list.

The original list remains unchanged.

For example:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Happy coding!