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# Python | Convert Integral list to tuple list

• Last Updated : 19 Jan, 2023

Sometimes, while working with data, we can have a problem in which we need to perform type of interconversions of data. There can be a problem in which we may need to convert integral list elements to single element tuples. Let’s discuss certain ways in which this task can be performed.

Method #1 : Using list comprehension List comprehension can be used as a shorthand method to solve this particular problem. In this, we iterate through the list and convert each integer element into a tuple object.

## Python3

 `# Python3 code to demonstrate working of``# Convert Integral list to tuple list``# using list comprehension` `# initialize list``test_list ``=` `[``1``, ``4``, ``6``, ``8``, ``9``]` `# printing original list``print``(``"The original list : "` `+` `str``(test_list))` `# Convert Integral list to tuple list``# using list comprehension``res ``=` `[(ele, ) ``for` `ele ``in` `test_list]` `# printing result``print``(``"List after conversion to tuple list : "` `+` `str``(res))`

Output

```The original list : [1, 4, 6, 8, 9]
List after conversion to tuple list : [(1,), (4,), (6,), (8,), (9,)]
```

Method #2 : Using zip() + list() This is the simplest method to perform this particular task. The zip() when applied to list of integers, it converts each element to tuple. It returns a zip object and hence it has to converted back to list using list().

## Python3

 `# Python3 code to demonstrate working of``# Convert Integral list to tuple list``# using zip() + list()` `# initialize list``test_list ``=` `[``1``, ``4``, ``6``, ``8``, ``9``]` `# printing original list``print``(``"The original list : "` `+` `str``(test_list))` `# Convert Integral list to tuple list``# using zip() + list()``res ``=` `list``(``zip``(test_list))` `# printing result``print``(``"List after conversion to tuple list : "` `+` `str``(res))`

Output

```The original list : [1, 4, 6, 8, 9]
List after conversion to tuple list : [(1,), (4,), (6,), (8,), (9,)]
```

Method #3 : Using map()
In this method, we use the map() function to iterate through the original list and convert each integer element into a tuple object using a lambda function. The map() returns an iterable map object which is then converted to a list using the list() function. This method is also simple and easy to use.

## Python3

 `# Python3 code to demonstrate working of``# Convert Integral list to tuple list``# using map()` `# initialize list``test_list ``=` `[``1``, ``4``, ``6``, ``8``, ``9``]` `# printing original list``print``(``"The original list : "``, test_list)` `# Convert Integral list to tuple list``# using map()``res ``=` `list``(``map``(``lambda` `x: (x,), test_list))` `# printing result``print``(``"List after conversion to tuple list : "``, res)`

Output

```The original list :  [1, 4, 6, 8, 9]
List after conversion to tuple list :  [(1,), (4,), (6,), (8,), (9,)]```

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

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