# Split an integer into digits in Python Last updated: Jun 25, 2022 Photo from Unsplash

## Split an integer into digits in Python#

To split an integer into digits:

1. Use the `str()` class to convert the integer to a string.
2. Use a list comprehension to iterate over the string.
3. On each iteration, use the `int()` class to convert each substring to an integer.
main.py
```Copied!```my_int = 13579

my_list = [int(x) for x in str(my_int)]

print(my_list)  # 👉️ [1, 3, 5, 7, 9]
``````

We used the `str()` class to convert the integer to a string, so we can iterate over the string.

The next step is to use a list comprehension to iterate over the string.

List comprehensions are used to perform some operation for every element, or select a subset of elements that meet a condition.

On each iteration, we pass the string to the `int()` class to convert it to an integer.

You can also use a simple `for` loop to achieve the same result.

To split an integer into digits:

1. Use the `str()` class to convert the integer to a string.
2. Use a `for` loop to iterate over the string.
3. Use the `int()` class to convert each substring to an integer and append them to a list.
main.py
```Copied!```my_int = 13579

my_list = []

for x in str(my_int):
my_list.append(int(x))

print(my_list) # 👉️ [1, 3, 5, 7, 9]
``````

We iterate over the digits that are wrapped in a string and on each iteration, we use the `int()` class to convert the value to an integer before appending the result to a list.

Alternatively, you can use the `map()` function to split an integer into digits.

main.py
```Copied!```my_int = 13579

my_list = list(map(int, str(my_int)))

print(my_list)  # 👉️ [1, 3, 5, 7, 9]
``````

The map() function takes a function and an iterable as arguments and calls the function with each item of the iterable.

Strings are iterable and integers are not, so the first step is to convert the integer to a string.

The `int()` class gets passed each substring from the string and converts the values to integers.

Note that the `map()` function returns a `map` object (not a list), so we have to use the `list()` class to convert the `map` object to a list.

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