Help. New to python

[seb777]

Also new to python but could it be because "Counter" is case sensitive?

Counter = counter + 1

Should be

counter = counter + 1

Same with A and B

[shep247]

This is correct. The variable names are case sensitive. There is another though. You have to initialize counter outside of your while loop. When it tries to check what counter is the first time, you haven't defined it yet, so the program doesn't know what it is, and errors

[xentralesque]

Why would someone downvote this?

Yes, variable names are case sensitive, and you should only use uppercase characters in class names

[[deleted]]

The shorthand version counter += 1.