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.
h=input('Enter Hours:')
r=input('Enter rate:')
if int(h)>40:
    extra=float(r)*float((int(h)-40)*1.5)
    pay=(float(r)*float(40))+extra
else:
    pay=float(h)*float(r)

print(pay)

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#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. The following shows two executions of the program:
h=input('Enter Hours:')
r=input('Enter rate:')
try:
    if int(h)!=str() or int(r)!=str():
        if int(h)>40:
          extra=float(r)*float((int(h)-40)*1.5)
          pay=(float(r)*float(40))+extra
          print(pay)
        else:
          pay=float(h)*float(r)
          print(pay)
except:
    print('Error, please enter numeric input')

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#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 the following table:
i=input('Enter Score:')
try:
    h=float(i)
    if h!=str():
        if h>=0.0 and h<=1.0:
            if h>=0.6 and h<0.7:
                print('D')
            elif h>=0.7 and h<0.8:
                print('C')
            elif h>=0.8 and h<0.9:
                print('B')
            elif h>=0.9:
                print('A')
            else:
                print('F')
        else:
            print('Bad score')
except:
    print('Bad score')