# VARIABLE DEFINITIONs

currentName = ""
course = ""
grade = ""
categoryTotal = 0
eof = False
grandTotal=0
gradeFile = ""

#-----------------------------------------------------------------------
# CONSTANT DEFINITIONS

#-----------------------------------------------------------------------
# FUNCTION DEFINITIONS
def startUp():
    global gradeFile,currentName,previousName,course,grade,eof
    print ("grade report\n").center(60).upper()
    print "name".upper(),"course".rjust(22).upper(),"grade".rjust(32).upper()
    print "-" * 60
    gradeFile = open("grades.txt","r")
    readRecord()
    previousName=""
    previousName= currentName


def readRecord():
    global currentName, course,grade,eof,studentRecord,gradeFile
    studentRecord = gradeFile.readline()
    if studentRecord == "":
            eof = True
    else:
            currentName = studentRecord[0:20].strip()
            course = studentRecord[20:50].strip()
            grade = studentRecord[50:51].strip()
            eof = False

def gradesLoop():
    global eof,previousName,currentName,categoryTotal,course,grade
    while not eof:
        if  currentName != previousName:
                categoryChange()
                if categoryTotal <= 1:
                    tempStr = currentName.ljust(20)
                    tempStr+= course.ljust(50)
                    tempStr+= grade.ljust(51)
                else:
                    tempStr+= course.ljust(50)
                    tempStr+= grade.ljust(51)


        categoryTotal+=1
        readRecord()

def categoryChange():
    global categoryTotal,grandTotal,previousName,currentName
    print "Category count=", categoryTotal
    grandTotal+= categoryTotal
    categoryTotal=0
    previousName = currentName

def closeDown():
    global grandTotal, gradeFile
    categoryChange()
    print "Total courses taken by all students =", grandTotal
    gradeFile.close()
#------------------------------------------------------------------------
startUp()
gradesLoop()
closeDown()

raw_input("\nRun complete. Press the Enter key to exit.")