py4inf_ch4

## ex. 4.6

## Rewrite  your  pay  computation  with  time-and-a-half  for  overtime  and  create  a function called computepay which takes two parameters (hours and rate).
## Enter Hours: 45
## Enter Rate: 10
## Pay: 475.0

def computepay (hours, rate):
    if hours<=40:
        pay=hours*rate
    else:
        pay=(40*rate)+(hours-40)*rate*1.5
    print pay

def userinput(a):
    a=raw_input()
    while a.isdigit()==False:
        a=raw_input("Please type a number")
    return a

print "Please input the number of hours: "
hours=int(userinput(hours))
print "Please input the rate"
rate=float(userinput(rate))
computepay(hours,rate)



## ex. 4.7
##  Rewrite  the  grade  program  from  the  previous  chapter  using  a  function  called computegrade that takes a score as its parameter and returns a grade as a string.

## 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:
## Score     Grade
## >= 0.9        A
## >= 0.8        B
## >= 0.7        C
## >= 0.6        D
## < 0.6      F


score = raw_input ('Please give a score \n')
while score.isalpha () == True or float(score)>1.0:
    score = raw_input ('Please input a number between 0.0 and 1.0 for the score \n')

def whatgrade(a):
    round(float(a))
    if a >= 0.9:
        print 'A'
    elif a >=0.8:
        print 'B'
    elif a >=0.7:
        print 'C'
    elif a >=0.6:
        print 'D'
    else: print 'F'

whatgrade(score)