Sequence subtraction

[Windspar]

1. Next time. Show the work. That you want help on.

It pretty simple.
Just loop over word.
Compare against correct word code.

Try it yourself then look at code.

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def loop_match(command, code):
    errors = 0
    i = 0
    for letter in command:
        while letter != code[i]:
            errors += 1
            i += 1
            if i >= len(code):
                break

        i += 1
        if i >= len(code):
            break

    return errors

def straight_match(command, code):
    errors = 0
    for i in range(min(len(code), len(command))):
        if command[i] != code[i]:
            errors += 1

    return errors + abs(len(code) - len(command))

def match(command, code):
    return min( loop_match(command, code),
                straight_match(command, code) )

code = 'sddddwx'
print(match('sddwx', code))
print(match('sddddx', code))
print(match('sdddwwx', code))
print(match(code, code))