Lab Two Solution | Python Fiddle

# absoluteValue: number -> number
# return the absolute value of the input number
def absoluteValue(x):
   if x < 0:
      return -x
   else:
      return x

# isLeapYear: int -> boolean
# return true if the given integer is the year number of a leap year
def isLeapYear(year):
   if year % 100 == 0:
      return year % 400 == 0
   else:
      return year % 4 == 0

# singlesAmountTaxed: float -> float
# return the amount of income taxed for an umarried US citizen in 2013
def singlesAmountTaxed(salary):
   if salary <= 8925:
      rate = 0.1
   elif salary <= 36250:
      rate = 0.15
   elif salary <= 87850:
      rate = 0.25
   elif salary <= 183250:
      rate = 0.28
   elif salary <= 398350:
      rate = 0.33
   elif salary <= 400000:
      rate = .35
   else:
      rate = 0.396

return salary * rate

# frogToPrince: string -> string
# replace all instances of the word 'frog' with the word 'prince' and if none occur
# return a silly message.
def frogToPrince(myString):
   if 'frog' in myString:
      return myString.replace('frog', 'prince')
   else:
      return 'My kingdom for a frog!'

# domainName: string -> string
# return the domain name of an email address, or the empty string by default.
def domainName(myString):
   if '@' in myString:
      beginning = myString.find('@')
      return myString[beginning + 1:]
   else:
      return ''
    
    
print absoluteValue(-7)
print isLeapYear(2004)
print singlesAmountTaxed(394785)
print frogToPrince('My frog is a prince!')
print domainName("jkun2@uic.edu")

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