Converts an integer to a binary with two_complement and unsigned representation

int_to_binary.py

#! /usr/bin/python3

# Example output:
# Enter a number:1024
# Number: 1024
# Needed bits: 11
# Bytes (unsigned)                                                                       100 0000 0000
# Bytes (two-complement)                                                                0100 0000 0000


BYTE_SIZE = 4


def align(word, number):
    return "{:<50s}{:>50s}".format(word, number)


def binary_format(binary):
    # Remove the binary identifier
    clean = binary[2:]
    result = ""
    for i in range(1, len(clean) + 1):
        result = clean[len(clean) - i] + result
        if i % BYTE_SIZE == 0:
            result = " " + result

    return result


def two_complement(number):
    bits = number.bit_length()
    binary = bin(number % (1 << (bits + 1)));
    if number > 0:
        # Add a leading zero
        binary = "0b0" + binary[2:]

    return binary;


user_input = input("Enter a number:")
input_number = int(user_input)

bits = input_number.bit_length()

print("Number:", input_number)
print("Needed bits:", bits)
print(align('Bytes (unsigned)', binary_format(bin(input_number))))
print(align('Bytes (two-complement)', binary_format(two_complement(input_number))))