Python GrayCode saved as string directly to decimal

Question

Im working for a python project and i wonder if the following is possible:

Currently I have a graycode stored as an string i.e: "1000" and I want to convert it to is integer (decimal, base10) value --> 15

Answer 1

From RosettaCode:

def gray_decode(n):
    m = n >> 1
    while m:
        n ^= m
        m >>= 1
    return n

This takes an int as input, so you would have to parse the string before calling the function:

a = "1000"
print(gray_decode(int(a, 2)))