16-bit multiplication of 8 bit integers via partial products

main.py

#!/usr/bin/env python3
def partial_product(a_bytes, b_bytes):
        high_a = a_bytes[0]
        low_a = a_bytes[1]

        high_b = b_bytes[0]
        low_b = b_bytes[1]

        partials = [
                low_a*low_b,
                low_a*high_b<<4,
                high_a*low_b<<4,
                high_a*high_b<<8
        ]
        return sum(partials)

result = partial_product([0x3,0xF], [0xE, 0x3])
print("Result:",result)
print("Expected:",0x3F*0xE3)
print(hex(0x3F*0xE3))