Ok, i've gotten pretty far on a code but keep getting an error. I know it's something simple but i just can't put my finger on it please help.
import os
import pickle
class Student(object):
def _init_(self):
self._students = {}
def addStudent(self, name):
self._students[name] = [0, 0, 0]
def editStuData(self):
print()
print("Edit student data: ")
stud = input("Enter Student's name: ")
self._students[stud][0] = int(input("Enter first exam grade: "))
self._students[stud][1] = int(input("Enter second exam grade: "))
self._students[stud][2] = int(input("Enter third exam grade: "))
def dispAverage(self):
print()
print("Student Name Exam 1 Exam 2 Exam 3 Grade")
for stud in self._students:
ex1, ex2, ex3 = self._students[stud]
try:
avg = (ex1 + ex2 + ex3) / 3
except ZeroDivisionError:
avg = 0
if avg >= 90:
letterGrade = 'A'
elif avg >= 80 and avg < 90:
letterGrade = 'B'
elif avg >= 70 and avg < 80:
letterGrade = 'C'
elif avg >= 60 and avg < 70:
letterGrade = 'D'
elif avg < 60:
letterGrade = 'F'
print("%-12s %5s %5s %5s %5s" % (name, ex1, ex2, ex3, letterGrade))
def storeFile(fname, c):
f = open(fname, "wb")
pickle.dump(c, f)
f.close()
def readData(fname):
try:
f = open(fname, "rb")
t = pickle.load(f)
f.close()
return t
except IOError as e:
print(e)
def main():
fname = "pickledStudents.txt"
if os.path.exists(fname):
citStudents = readData(fname)
else:
citStudents = Student()
while True:
print("""
Menu Options. Choose 1, 2, 3, or 4
1. Add a student (scores default to 0, 0, 0)
2. Edit an exam score
3. Calculate grades
4. Save and exit
""")
opt = input("ENter your choice, 1, 2, 3, or 4: ")
if opt == "1":
print()
name = input("Enter student name: ")
citStudents.addStudent(name)
elif opt == "2":
citStudents.editStuData()
elif opt == "3":
citStudents.dispAverage()
elif opt == "4":
storeFile(fname, citStudents)
print("data stored")
print()
break
else:
print("Invalid entry, please try again")
print()
main()
