TypeError: unsupported operand type(s) for +: 'float' and 'tuple' error when trying to add multiple floats together

My functions is:

def process_coins(num_of_pennies, num_of_nickels, num_of_dimes, num_of_quarters):
  total_of_pennies = (float(num_of_pennies) / 100)
  total_of_nickels = ((float(num_of_nickels) * 5) / 100)
  total_of_dimes = (float(num_of_dimes) / 10)
  total_of_quarters = ((float(num_of_quarters) * 0,25))

  total_money_inserted_in_machine =  total_of_pennies + total_of_nickels + total_of_dimes + total_of_quarters
  return total_money_inserted_in_machine

And I am calling my function like this

    num_of_pennies = int(input("How many pennies:"))
    num_of_nickels = int(input("How many nickels:"))
    num_of_dimes = int(input("How many dimes:"))
    num_of_quarters = int(input("How many quarters:"))

    total_money_inserted = process_coins(num_of_pennies, num_of_nickels, num_of_dimes, num_of_quarters)

It is supposed to just add the amounts together and return it so I can use it later but it gives "TypeError: unsupported operand type(s) for +: ‘float’ and ‘tuple’" error can anyone tell me what I am doing wrong?

>Solution :

Your problem seems to be using 0,25 when I think you want to use 0.25. In Python, floats use a dot (.) instead of a comma (,). That’s creating a tuple instead of a float.

The error you’re seeing happens exactly because of that:

>>> total_of_quarters = ((float(num_of_quarters) * 0,25))
>>> type(total_of_quarters)
<class 'tuple'>
>>> total_of_quarters
(0.0, 25)

Instead, I think you want to use:

>>> total_of_quarters ((float(num_of_quarters) * 0.25))
>>> type(total_of_quarters)
<class 'float'>