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# Python | Convert set into a list

Given a set, write a Python program to convert the given set into a list.

`Input : ('Geeks', 'for', 'geeks')Output : ['Geeks', 'for', 'geeks']Explanation: The data type of the input is set <class 'set'>  and                         the data type of the output is list <class 'list'>.`

# Convert the set into a List

### Convert Set to List using the list Method

Here we pass the set datatype inside the list parentheses as a parameter and this will convert the set data type into a list data type as shown in the code below.

## Python3

 `# set into a list``my_set ``=` `{``'Geeks'``, ``'for'``, ``'geeks'``}``print``(``type``(my_set))` `s ``=` `list``(my_set)``print``(``type``(s))`

Output

```['Geeks', 'for', 'geeks']
```

Time complexity: O(n)
Auxiliary Space: O(n)

### Set into a List using the sorted() method

Using the sorted() function will convert the set into a list in a defined order. The only drawback of this method is that the elements of the set need to be sortable.

## Python3

 `# convert a set into a list``def` `convert(``set``):``    ``return` `sorted``(``set``)` `# Driver function``my_set ``=` `{``1``, ``2``, ``3``}` `s ``=` `set``(my_set)``print``(convert(s))`

Output

```[1, 2, 3]
```

Time complexity: O(n)
Auxiliary Space: O(n)

### Convert the set into a list using the map() function

You can use the map() function to convert the set to a list by passing the set as an argument to the map() function and returning a list of the results. For example:

## Python3

 `# program to convert a  set into a list``def` `convert(s):``    ``return` `list``(``map``(``lambda` `x: x, s))``# Driver function``s ``=` `{``1``, ``2``, ``3``}``print``(convert(s))`

Output

```[1, 2, 3]
```

Time complexity: O(n)
Auxiliary Space: O(n)

### Convert Set to List using List Comprehension

You can use list comprehension to create a new list from the elements in the set as shown in the code below.

## Python3

 `def` `convert(s):``    ``# Use a list comprehension to create a new list from the elements in the set``    ``return` `[elem ``for` `elem ``in` `s]` `s ``=` `{``1``, ``2``, ``3``}``print``(convert(s))`

Output

```[1, 2, 3]

```

Time complexity: O(n)
Auxiliary Space: O(n)

### Convert Set into a List using [*set, ]

This essentially unpacks the set s inside a list literal which is created due to the presence of the single comma (, ). This approach is a bit faster but suffers from readability.

For example:

## Python3

 `#program to convert a  set into a list``def` `convert(``set``):``    ``return` `[``*``set``, ]` `# Driver function``s ``=` `set``({``1``, ``2``, ``3``})``print``(convert(s))`

Output

```[1, 2, 3]
```

Time complexity: O(n)
Auxiliary Space: O(n)