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Python Program to Convert a list of multiple integers into a single integer

Python program to convert a byte string to a list of integers

Last Updated : 16 Jan, 2025

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We have to convert a byte string to a list of integers extracts the byte values (ASCII codes) from the byte string and stores them as integers in a list. For Example, we are having a byte string s=b"Hello" we need to write a program to convert this string to list of integers so the output should be s=[72,101,108,108,111].

Using a Simple `list()` Conversion

Byte string is already a sequence of integers (where each byte is an integer between 0 and 255) we can directly convert the byte string to a list of integers using list().

Python

# Byte string s = b"Hello" # Convert to a list of integers int_l = list(s) print(int_l)

Output

[72, 101, 108, 108, 111]

Explanation:

Variable s is a byte string (b"Hello") where each character is represented by its corresponding byte value.
list(s) converts the byte string into a list of integers where each byte is represented by its ASCII value: [72, 101, 108, 108, 111]

Using a List Comprehension

We can also use a list comprehension to iterate over the byte string and get a list of integers.

Python

# Byte string s = b"Hello"  # Convert to a list of integers using list comprehension int_l = [byte for byte in s]  print(int_l)

Output

[72, 101, 108, 108, 111]

Explanation:

Variable s holds a byte string (b"Hello"), where each character is represented as a byte (ASCII value).
List comprehension [byte for byte in s] iterates over the byte string, converting each byte into its integer value and storing them in the list: [72, 101, 108, 108, 111].

Python Program to Convert a list of multiple integers into a single integer

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