Q9 pedometer.py

# A pedometer treats walking 2,000 steps as walking 1 miles. 
# Write a steps_to_miles() function that takes the number of steps as a parameter and returns the miles walked. 
# The steps_to_miles() functions throws a ValueError object with the message of:
# "Exception: Negative step count entered." when the number of steps is negative. 
# Complete the main() program that reads the number of steps from a user, call the steps_to_miles() function, 
# and outputs the returned value from the steps_to_miles() function. 
# Use a try-except block to catch any ValueError object thrown by the steps_to_miles() function and output the exception message.
# Output each floating-point value with two digits after the decimal point, which can be achieved as follows:
# print(f'{your_value:,2f}')
# Ex. if the input is: 5345 The output is: 2.67
# if the input is: -3850 The output is: Exception: Negative step count entered.

def steps_to_miles(steps):

   miles = steps / 2000

   if miles < 0:

      raise ValueError('Exception: Negative step count entered.')

   return miles

if __name__ == '__main__':

   user_steps = int(input())

   try:

      user_miles = steps_to_miles(user_steps)

      print(f'{user_miles:.2f}')

   except ValueError as expt:

      print(expt)  

# This problem is looking for the exception.