Python crashed with the error TypeError: can only concatenate str (not "int") to str. Essentially Python's saying you've used + between a string and a number and it's unhappy about it. Let's talk about how to fix this issue and how to avoid it more generally.| www.pythonmorsels.com
If you need to make a very simple command-line interface and it doesn't need to be friendly, you can read sys.argv to manually process the arguments coming into your program.| www.pythonmorsels.com