'Helper method that format the user grade
Args:
header_row(list): header row of csv containing Student ID, Email, Username etc
user(object): Django user object
grade(list): Users\' grade list'

def _format_user_grade(self, header_row, user, enrollment_status, grade):

    return dict(zip(header_row, ([unicode(user.id), user.email, user.username, enrollment_status] + grade)))
