Convert number to list of integers in Python

As part of data manipulation in Python we may sometimes need to convert a given number into a list which contains the digits from that number. In this article we'll see the approaches to achieve this.

With list comprehension

In the below approach we apply the str function to the given number and then convert into integer through identity function. Finally we wrap the result into a list.

Example

numA = 1342
# Given number
print("Given number : \n", numA)
res = [int(x) for x in str(numA)]
# Result
print("List of number: \n",res)

Output

Running the above code gives us the following result −

Given number :
1342
List of number:
[1, 3, 4, 2]

With map and str

We fast apply the str function to the given number. Then apply the in function repeatedly using map. Finally keep the result inside a list function.

Example

numA = 1342
# Given number
print("Given number : \n", numA)
res = list(map(int, str(numA)))
# Result
print("List of number: \n",res)

Output

Running the above code gives us the following result −

Given number :
1342
List of number:
[1, 3, 4, 2]