Need help with deleting and adding input

students = [] 
class Student: 
    firstName = "" 
    lastName = "" 
    age = 0 
    studentID = "" 
    degree = "" 
    grades = {} 

def setFirstName(self, firstName): 
    self.firstName = firstName 

def getFirstName(self): 
    return self.firstName 

def setLastName(self, lastName): 
    self.lastName = lastName 

def getLastName(self): 
    return self.lastName 

def setDegree(self, degree): 
    self.degree = degree 

def getDegree(self): 
    return self.degree 

def setGrades(self, grades): 
    self.grades = grades 

def getGrades(self): 
    return self.grades 

def setStudentID(self, studentID): 
    self.studentID = studentID 

def getStudentID(self): 
    return self.studentID 

def setAge(self, age): 
    self.age = age 

def getAge(self): 
    return self.age 

def addStudent(): 
    print "Adding student..."
    F1 = raw_input("Please enter the student's first name: ")
  
      F2 = raw_input("Please enter the student's last name: ") 
      F3 = raw_input("Please enter the student's degree: ") 
      F4 = raw_input("Please enter the student's ID: ") 
      F5 = raw_input("Please enter the student's age: ") 
      F6 = '0' 
      F7 = '-2' # 'done' added as module name, only able to print single module.. 

    while F6 != 'done': 
        F6 = raw_input("Please enter module name. type 'done' to quit: ") 
        if F6 == 'done': break 
            F7 = raw_input("Please enter the grades for " ':') 

        student = Student() student.setFirstName(F1)   
        student.setLastName(F2) student.setDegree(F3)   
        student.setStudentID(F4) student.setAge(F5) 
        student.setGrades({F6:F7}) 
        students.append(student) 
        print "Student added" 

def printStudents(): 
    print "Printing all students in the database... " 
    for person in students: 
        print "Printing details for " + person.getFirstName() + (person.getLastName()) 
        print "Degree: " + person.getDegree() 
        print "Student ID: " + person.getStudentID() 
        print "Age: " + person.getAge() 
        print "Grades: " + str(person.getGrades()) 
        print "" 

def removeStudent(): #Wrong
    print 'Removing a student from the database...'
    userInput2 = raw_input('Please enter Student ID of student to be deleted: ') 
    if userInput2 == studentID: 
        del studentID 
    print 'removed from the database.' 
    else: 
        print 'No matching student found.' 

print "-------------------------------------" 
print "Welcome to the student record system!" 
print "-------------------------------------" 
print "" 

userInput = 0 
while userInput != '-1': 
    print '---------------------------------------' 
    print 'Menu' 
    print '1. Add a student (to the database)' 
    print '2. Print all students (in the database)' 
    print '3. Remove a student (from the database)' 
    print '---------------------------------------' 
    userInput = raw_input('What would you like to do <type a number or -1 to quit. ') 
    if userInput == '1': 
        addStudent() 
    elif userInput == '2': 
        printStudents() 
    elif userInput == '3': 
        removeStudent() 
    elif userInput == '-1': 
        print 'End of program' 
    else: 
        print 'Sorry', userInput ,'is not a valid option. Try again.'

def removeStudent():
    print 'Removing a student from the database...'
    userInput2 = raw_input('Please enter Student ID of student to be deleted: ')
    for (i,student,) in enumerate(students):
        if userInput2 == student.getStudentID():
            del students[i]
            print 'removed from the database.'
            break
    else:
        print 'No matching student found.'

 for (i,student,) in enumerate(students):

        if userInput2 == student.getStudentID():
            del students[i]

>>> for (i,o,) in enumerate('Dave'):
...     print('i =',i)
...     print('and str(o) is',str(o))
...     print('--------------------------Going to the next iteration if there is one')
... 
('i =', 0)
('and str(o) is', 'D')
--------------------------Going to the next iteration if there is one
('i =', 1)
('and str(o) is', 'a')
--------------------------Going to the next iteration if there is one
('i =', 2)
('and str(o) is', 'v')
--------------------------Going to the next iteration if there is one
('i =', 3)
('and str(o) is', 'e')
--------------------------Going to the next iteration if there is one
>>> 

students = [10,20,30,40,50] # Trying a list containing only str 

for (i,student,) in enumerate(students): 
    print student 

students1 = [{'a':'1', 'b':'2'} ,{'c':'3', 'd':'4'}] #trying a list containing only Dict 

for (i,student,) in enumerate(students1): 
    print student 

students2 = [10,20,30,{'a':'1','b':'2'}] # trying a list containing both Dict and str 

for (i,student,) in enumerate(students2): 
    print student