Simplifying function

[DeaD_EyE]

Simplest:

def binary_to_int(value: str) -> int:
     return int(value, base=2)

Own implementation:

def binary_to_int(value: str) -> int:

    if not set("01").issuperset(value):
        raise ValueError(f"Not allowed value: {value}")

    result = 0
    for bit, char in enumerate(reversed(value)):
        if char == "1":
            result += 2 ** bit

    return result

The type hints are not required. I just use them to show which types a function should take and which return types a function has.