sample student manager

import dbm,sys
    from time import ctime
    class Database(object):
        def __init__(self):
    
            self.userData = dbm.open("User Data", "c")
            print "\t\tStudent Database Management  System"
            print "\t\t             SDMS"
            print "\t\t....................................\n"
    
            print "please select option "
            print "(1)Add/Edit User info"
            print "(2)View/Edit"
            print "(3)Remove User Data"
    
            funcChoice = raw_input("Choice")
            if funcChoice == "1":
                self.Add()
            elif funcChoice == "2":
                self.View()
            elif funcChoice == "3":
                self.Remove()
            elif funcChoice == "e":
                sys.exit("Please come again")
    
        def Add(self):
            print "\t\tNew User Wizard\n"
            self._Id = raw_input("ID number\n>")
            for key in self.userData.keys():
                if self._Id not in self.userData.keys():
                    self.First = str(raw_input("students first name?\n>"))
                    self.lastName = str(raw_input("students last name?\n>"))
                    self.userData[self._Id] = "Id: "+self._Id +" "+ "Name: "+self.First +" "+self.lastName + str(ctime())
    
                elif self._Id == key:
                    print "Id already found in database"
                    print "............................."
                    print "Do you want to replace User info for id"
                    answer = raw_input(">")
                    if answer == "y":
                        self.First = str(raw_input("students first name?"))
                        self.lastName = str(raw_input("students last name?"))
                        self.userData[self._Id] = "Id: "+self._Id+" "+"Name: "+str(self.First)+" " +str(self.lastName)
    
                    elif answer == "n":
                        sans = raw_input("do you want to choose a different user id?\n>")
                        if sans =="n":
                            sys.exit()
                        elif sans == "y":
                            self.Add()
                        elif sans == "e":
                            exit()
                    elif answer == "e":
                        sys.exit("come again")
                    else:
                        print "please use (y)es or (n)o or (e)xit"
    
    
            return
    
        def View(self):
            print "Please choose how you want to view student info\n\n"
            print "..................................................."
            print "(1)View Individual"
            print "(2)View All"
    
            viewChoice = raw_input("Choice\n>")
            if viewChoice == "1":
                viewFind = raw_input("\t\tuse student Id to Search\n\n>")
                print self.userData[viewFind]
    
            elif viewChoice == "2":
                for key in sorted(self.userData.keys()):
                    print self.userData[key]
    
        def Remove(self):
            print "What information do you want to remove\nWARNING!! if you delete any piece of data you wont be able to restore it\n"
            for key in sorted(self.userData.keys()):
                    print self.userData[key]
            data = raw_input(">")
    
            del self.userData[data]
            pass
    
    
    
    
    database = Database()