python - How do I restrict an input to be to the second decimal?

Question

I'm taking an intro to Python and I'm asked to request an input of dimes and quarters and then add the values, I'm trying to restrict either the input to a second decimal for the dimes.

dimes = input('How many dimes do you have?: ')
dimes = round(dimes, 2)

It's supposed to take an input and put it to the second decimal:

input = 5
output = 0.05

What it's doing:

   dimes = round(dimes, 2)
TypeError: type str doesn't define __round__ method

question from:https://stackoverflow.com/questions/65864331/how-do-i-restrict-an-input-to-be-to-the-second-decimal

Answer 1

You simply need to convert the input to an integer and divide it by 100.

dimes = int(input('How many dimes do you have?: ')) / 100

This will fail if the user enters something that is not an integer.