Python | Get last N elements from given list

Accessing elements in a list has many types and variations. These are an essential part of Python programming and one must have the knowledge to perform the same. This article discusses ways to fetch the last N elements of list. Let’s discuss certain solution to perform this task.

Method #1 : Using list slicing

This problem can be performed in 1 line rather than using a loop using the list slicing functionality provided by Python. Minus operator specifies slicing to be done from rear end.

 `# Python3 code to demonstrate ` `# Get last N elements from list ` `# using list slicing ` ` `  `# initializing list ` `test_list ``=` `[``4``, ``5``, ``2``, ``6``, ``7``, ``8``, ``10``] ` ` `  `# printing original list ` `print``(``"The original list : "` `+` `str``(test_list)) ` ` `  `# initializing N ` `N ``=` `5` ` `  `# using list slicing ` `# Get last N elements from list ` `res ``=` `test_list[``-``N:] ` ` `  `# print result ` `print``(``"The last N elements of list are : "` `+` `str``(res)) `

Output :

```The original list : [4, 5, 2, 6, 7, 8, 10]
The last N elements of list are : [2, 6, 7, 8, 10]
```

Method #2 : Using `islice() + reversed()`

The inbuilt funtions can also be used to perform this particular task. The islice function can be used to get the sliced list and reversed function is used to get the elements from rear end.

 `# Python3 code to demonstrate ` `# Get last N elements from list ` `# using islice() + reversed() ` `from` `itertools ``import` `islice ` ` `  `# initializing list ` `test_list ``=` `[``4``, ``5``, ``2``, ``6``, ``7``, ``8``, ``10``] ` ` `  `# printing original list ` `print``(``"The original list : "` `+` `str``(test_list)) ` ` `  `# initializing N ` `N ``=` `5` ` `  `# using islice() + reversed() ` `# Get last N elements from list ` `res ``=` `list``(islice(``reversed``(test_list), ``0``, N)) ` `res.reverse() ` ` `  `# print result ` `print``(``"The last N elements of list are : "` `+` `str``(res)) `

Output :

```The original list : [4, 5, 2, 6, 7, 8, 10]
The last N elements of list are : [2, 6, 7, 8, 10]
```

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