So I'm making a tip calculator at the moment. The thing that I am stuck on is where they can input the total amount of the cost. If they input an integer I want it to break out of the loop but if they input something else than an integer, I want it to stay in the loop and tell them to enter an integer. Here is the code that I made for this portion. (Not all the code)

```
Integer = range(1,10000)

while True:
    while True:
        Cost = raw_input("What was the cost? ")
        Cost = int(Cost)
        if Cost in Integer:
            break
        else:
            pass

```

The spacing may not look correct but it is in the actual script. I still don't know how to paste the code on here without having to add 4 spaces to every line. Anyway, please let me know what you would do to complete the task I need.