Declaration of global variable????

[coolindienc]

Since I am pretty new to Python, I am not sure what am I doing wrong here. I am getting error when I compile this program at module "def printResults()" claming that I am using variables prior to global declaration. I have put bold for the variables "custName and serviceCharge" in the module. Any help will be appreciated greatly.

Thanks a bunch in advance!!!!

Andy

def getInput():
    global custName, checkAmount
    custName = char (raw_input("Enter customer name: "))
    gateDates()
    checkAmount = int (raw_input("Enter check amount: "))
 
def getDates():
    global checkYear, checkMonth, checkDay, todayYear, todayMonth, todayDay
    print "Enter the date of the check\n"
    checkYear = int (raw_input ("Enter the check year: "))
    checkMonth = int (raw_input ("Enter the check month: "))
    checkDay = int (raw_input ("Enter the check date: "))
    print "Enter today's date\n"
    todayYear = int (raw_input ("Enter the today's year: "))
    todayMonth = int (raw_input ("Enter the today's month: "))
    todayDay = int (raw_input ("Enter the today's date: "))
 
def calculateServiceCharge():
    global baseCahrge, extraCharge, checkAmount, yearsLate, todayYear, checkYear
    global todayWorkField, todayMonth, monthsLate, checkMonth, serviceCharge
    baseCharge = 20.00
    extraCharge = 0.02 * checkAmount
    yearsLate = todayYear - checkYear
    todayWorkField = yearsLate * 12 + todayMonth
    monthsLate = todayWorkField - checkMonth
    serviceCharge = baseCharge + extraCharge + monthsLate * 5
 
 
def printResults():
    global serviceCharge, custName, baseCahrge, extraCharge, checkAmount, yearsLate, todayYear, checkYear
    global todayWorkField, todayMonth, monthsLate, checkMonth
    print "Customer Name  : ",+custName
    print "Service Charge : ",+serviceCharge
 
 
#Main------------------------------------------------------------
    global custName, checkYear, checkMonth, checkDay, todayYear, todayMonth, todayDay
    global checkAmonut, serviceCharge, extraCharge, yearsLate, monthsLate, todayWorkField
 
    getInput()
    calculateServiceCharge()
    printResults()

[bvdet]

Since I am pretty new to Python, I am not sure what am I doing wrong here. I am getting error when I compile this program at module "def printResults()" claming that I am using variables prior to global declaration. I have put bold for the variables "custName and serviceCharge" in the module. Any help will be appreciated greatly.

Thanks a bunch in advance!!!!

Andy

 
def getInput():
    global custName, checkAmount
    custName = char (raw_input("Enter customer name: "))
    gateDates()
    checkAmount = int (raw_input("Enter check amount: "))
 
def getDates():
    global checkYear, checkMonth, checkDay, todayYear, todayMonth, todayDay
    print "Enter the date of the check\n"
    checkYear = int (raw_input ("Enter the check year: "))
    checkMonth = int (raw_input ("Enter the check month: "))
    checkDay = int (raw_input ("Enter the check date: "))
    print "Enter today's date\n"
    todayYear = int (raw_input ("Enter the today's year: "))
    todayMonth = int (raw_input ("Enter the today's month: "))
    todayDay = int (raw_input ("Enter the today's date: "))
 
def calculateServiceCharge():
    global baseCahrge, extraCharge, checkAmount, yearsLate, todayYear, checkYear
    global todayWorkField, todayMonth, monthsLate, checkMonth, serviceCharge
    baseCharge = 20.00
    extraCharge = 0.02 * checkAmount
    yearsLate = todayYear - checkYear
    todayWorkField = yearsLate * 12 + todayMonth
    monthsLate = todayWorkField - checkMonth
    serviceCharge = baseCharge + extraCharge + monthsLate * 5
 
 
def printResults():
    global serviceCharge, custName, baseCahrge, extraCharge, checkAmount, yearsLate, todayYear, checkYear
    global todayWorkField, todayMonth, monthsLate, checkMonth
    print "Customer Name  : ",+custName
    print "Service Charge : ",+serviceCharge
 
 
#Main------------------------------------------------------------
    global custName, checkYear, checkMonth, checkDay, todayYear, todayMonth, todayDay
    global checkAmonut, serviceCharge, extraCharge, yearsLate, monthsLate, todayWorkField
 
    getInput()
    calculateServiceCharge()
    printResults()
 
 

There is no built-in function 'char'. The built-in function 'chr' requires an integer.
Look for typos: baseCahrge, gateDates()

Personally I don't like to pass around global variables. Instead I would pass values to and from the functions as required. You can also read the current date with time.localtime and do 'date' math.

def getInput():
    cn = (raw_input("Enter customer name: "))
    ca = float(raw_input("Enter check amount: "))
    return cn, ca
 
def getDates():
    cd = raw_input ("Enter the date of the check yyyy/mm/dd")
    date_list = cd.split('/')
    cd1 = date(int(date_list[0]), int(date_list[1]), int(date_list[2]))
    td = date(time.localtime()[0], time.localtime()[1], time.localtime()[2])
    return cd1, td
 
def calculateServiceCharge(checkDate, todayDate, checkAmount):
    # Assume service charge of $0.17 per day
    baseCharge = 20.00
    extraCharge = 0.02 * checkAmount
    return baseCharge + extraCharge + ((todayDate-checkDate).days * 0.17)
 
 
def printResults(custName, serviceCharge):
    print "Customer Name: %s\nService Charge: $%0.2f" % (custName, serviceCharge)
 
#Main------------------------------------------------------------
 
custName, checkAmount = getInput()
checkDate, todayDate = getDates()
printResults(custName, calculateServiceCharge(checkDate, todayDate, checkAmount))

The variable names local to the functions need not match the global variable names assigned outside the functions.

[coolindienc]

Thanks bvdet for your reply.

Andy

[bvdet]

You are welcome Andy!