For the first hour of the class, I kept running into typo after typo. I had to call in not only the professor but another classmate three times.

I eventually realized what had to be done, and stopped being lazy.

Then the feeling of understanding what Python demanded of me, and what I wanted from Python came back again.

And the code began to look cleaner, if not quite as easily defined.

I began using a sort of inelegant brute-force approach, but I can’t seem to break the calculator other than by entering a str value for x or y.

And the code ran like a sewing machine.