Python 101 - Lesson 3 - Chapter 3

# Exercise 3.1 :
# Rewrite your pay computation
# to give the employee 1.5 times
# the hourly rate for hours worked
# above 40 hours.

hours_1 = int(raw_input('Enter Hours:'))
rate_1 = int(raw_input('Enter Rate:'))

if hours_1 <= 40:
  pay = hours_1 * rate_1
elif hours_1 > 40:
  hours_2 = hours_1 - 40
  pay = 40 * rate_1 + hours_2 * 15
print 'Pay:',pay


# Exercise 3.2:
# Rewrite your pay program using try and
# except so that your program handles
# non-numeric input gracefully by printing
# a message and exiting the program.

hours_1 = raw_input('Enter Hours:')
try:
  hours = int(hours_1)
  rate_1 = raw_input('Enter Rate:')
  try:
    rate = int(rate_1)
    if hours <= 40:
      pay = hours * rate
    elif hours > 40:
      hours2 = hours - 40
      pay = 40 * rate + hours2 * 15
    print 'Pay:', pay
  except:
    print 'Error, please enter numeric input'
except:
  print 'Error, please enter numeric input'


# Exercise 3.3:
# Write a program to prompt for a score between
# 0.0 and 1.0. If the score is out of range print
# an error. If the score is between 0.0 and 1.0,
# print a grade using a table.

input_b = raw_input('Enter score:')
try:
  input = float(input_b)
  if input >= 0.0 and input < 1.0:
    if input >= 0.9:
      print 'A'
    elif input >= 0.8:
      print 'B'
    elif input >= 0.7:
      print 'C'
    elif input >= 0.6:
      print 'D'
    else:
      print 'F'
  else:
    print 'Bad score'
except:
  print 'Bad score'