Password Hacker Science Project

[volcano63]

Wow, that is too much effort .
Before help - 444 lines of code , and many of them redundant  - you need Code Review first.
Let me start by - ever heard of lists, elif? You just don't add numbers to names - you make list!

Let's start

passwords = [""] * 6

Now, about global - the only time you need global is when you want to re-assign value within a function - and it is still a bad idea. Outer-scope variables are visible within enclosed functions as they are - without qualifier. Still, arguments are better

But still - you write a lot of redundant code - you first function - since only one condition will be true - all ifs, startig from second and excluding the last, should be elifs, and the last should be else

if which_password == 0:
   .....
elif which_password == 1:
   .....

But even that is still lousy! Why? You repeat yourself! And - as I was recently preached to on FB   , there's a DRY approach (the priestess called it paradigm ), Don't Repeat Yourself

So, instead of this monstrosity, you may write just that

 def check_userpass(password_index, password_guess, passwords):
    if password_index == 0:
        return password_guess == passwords[0]
    elif password_index <len(passwords):
        return MD5me(password_guess) == passwords[password_index]
    return False

Concise, readable and to the point.

I am done for now. Now your turn - start chopping away redundancies in your code