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Python list sort()
• Difficulty Level : Easy
• Last Updated : 06 Apr, 2020

The sort function can be used to sort a list in ascending, descending or user defined order.
To sort the list in ascending order.

List_name.sort()
This will sort the given list in ascending order.

This function can be used to sort list of integers, floating point number, string and others.

 `numbers ``=` `[``1``, ``3``, ``4``, ``2``]`` ` `# Sorting list of Integers in ascending``numbers.sort()`` ` `print``(numbers)`
Output:
```[1, 2, 3, 4]
```
 `strs ``=` `[``"geeks"``, ``"code"``, ``"ide"``, ``"practice"``]`` ` `# Sorting list of Integers in ascending``strs.sort()`` ` `print``(strs)`
Output:

```['code', 'geeks', 'ide', 'practice']
```

To sort the list in descending order.

list_name.sort(reverse=True)
This will sort the given list in descending order.

 `numbers ``=` `[``1``, ``3``, ``4``, ``2``]`` ` `# Sorting list of Integers in descending``numbers.sort(reverse ``=` `True``)`` ` `print``(numbers)`
Output:
```[4, 3, 2, 1]
```

Sorting user using user defined order.

list_name.sort(key=…, reverse=…) – it sorts according to user’s choice

 `# Python program to demonstrate sorting by user's``# choice`` ` `# function to return the second element of the``# two elements passed as the parameter``def` `sortSecond(val):``    ``return` `val[``1``] `` ` `# list1 to demonstrate the use of sorting ``# using using second key ``list1 ``=` `[(``1``, ``2``), (``3``, ``3``), (``1``, ``1``)]`` ` `# sorts the array in ascending according to ``# second element``list1.sort(key ``=` `sortSecond) ``print``(list1)`` ` `# sorts the array in descending according to``# second element``list1.sort(key ``=` `sortSecond, reverse ``=` `True``)``print``(list1)`
Output:
```[(1, 1), (1, 2), (3, 3)]
[(3, 3), (1, 2), (1, 1)]
```

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