#Title: Python sanctuary costs calc
#Author: Kingsley Zhou
#Date: 13/06/2025
#Version: V1
#Purpose: to calc the costs for a python sancuary
print('Welcome to the Python Sanctuary costs calculator.')
print('This program will calculate the food cost per python')
try:
    num_pythons = float(input('How many pythons? '))
except:
    print('Please enter a vaild number.')
    num_pythons = float(input('How many pythons? '))
try:
    cost_of_mouse = float(input('What is the cost of a single mouse? '))
except:
    print('Please enter a valid number.')
    cost_of_mouse = float(input('What is the cost of a single mouse? '))
annual_costs = num_pythons*365*(3*cost_of_mouse)
print(f'The annual cost for {num_pythons} pythons will be ${cost_of_mouse}')
print('The program has ended')