Question

Implement the following function in the PyDev module functions.py and test it from a PyDev module named :

def gym_cost(cost, friends):
    """
    -------------------------------------------------------
    Calculates total cost of a gym membership. A member gets a
    discount according to the number of friends they sign up.
        0 friends: 0% discount
        1 friend: 5% discount
        2 friends: 10% discount
        3 or more friends: 15% discount
    Use: final_cost = gym_cost(cost, friends)
    -------------------------------------------------------
    Parameters:
        cost - a gym membership base cost (float > 0)
        friends - number of friends signed up (int >= 0)
    Returns:
        final_cost - cost of membership after discount (float)
    ------------------------------------------------------
    """

Sample testing:

Gym membership cost: $50
Number of friends signed up: 2

Your membership cost is $45.00

Test functions.py:

Answer 1

CODE:

OUTPUT:

Raw_code:

#function defintion of gym_cost
def gym_cost(cost,friends):
#if the friends is 0 no discount
if(friends==0):
final_cost=cost+0
#if the friends is equal to 1 you get 5% discount
elif(friends==1):
final_cost=cost-(cost*0.05)
#if the friends is equal to 2 you get 10% discount
elif(friends==2):
final_cost=cost-(cost*0.1)
#if the friends are greater than or equal to 3 15% discount
elif(friends>=3):
final_cost=cost-(cost*1.5)
#returning final_cost
return final_cost
#a gym membership base cost
cost=float(input("Gym membership cost:$"))
friends=int(input("Number of friends signed up:"))
#if the cost is greater than 0 and the friends are greater than equal to zero
if(cost>0 and friends>=0):
#calling the gym_cost wuth parameters(cost,friends)
final_cost=gym_cost(cost,friends)
#printing the final cost
print("Your membership cost is $",final_cost)

  
Note:I done this program in python IDLE due to unavailable of PyDev
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