Studenten = []
while True:
print("(i) immatrikulieren")
print("(e) exmatrikulieren")
print("(a) anzeigen aller Studenten")
print("(s) zum schreiben in textdatei")
print("(x) beenden")
eingabe = input()
if (eingabe == 'i'):
name = input("Namen eingeben ")
vorname = input("Vornamen eingeben ")
matnr = int(input("Matrikelnummer eingeben "))
s = student.Student(vorname, name, matnr)
Studenten.append(s)
elif (eingabe == 'e'):
exnr = int(input("Matrikelnummer eingeben "))
for i in range(len(Studenten)):
if exnr == Studenten[i].matnr:
Studenten.pop(i)
elif (eingabe == 'a'):
for i in range(len(Studenten)):
print(Studenten[i].name)
print(Studenten[i].vorname)
print(Studenten[i].matnr)
elif (eingabe == 'x'):
break
elif (eingabe == 's'):
import pickle
import student
f = open("stud.dat", "wb")
s = student.Student(1025, "Snk", 90)
pickle.dump(s, f) # syntax pickle,dump(content,file opened)
import student
stu1 = student.Student('Bob', 20)
stu1.print_name()
# print stu1.__name
print stu1.get_name()
导入的模块是用于定义的--定义类、变量、函数 首次导入会运行模块中的代码 *如果有导入时不希望执行的代码，可以放在if __name__ == '__main__'条件语句下 *再次导入不会运行。除非使用reload(模块名)函数 导入的几种情况 *导入文件 import student #python文件不用写.py 使用文件中的类、方法 student.Student() student.Student().成员变量和成员方法 student.Student.类变量和类方法 student.sum() *导入类、导入方法 即：从文件中导入类、方法 from student import Student from student import sum from student import Student, sum 使用类、方法 Student() Student().成员变量和成员方法
def createStudent(m, i, pro, ex):
return student.Student(m, i, pro, ex)
def addNewStudent():
def setStudentNo():
studentNo_ = input(
"3 reqemden ibaret telebe nomresini daxil edin: ").strip()
if studentNo_.isdigit() and len(studentNo_) == 3:
for s in student.userList:
if s.studentNo == studentNo_:
print("Bu koda sahib telebe artiq sistemde var!")
return
return studentNo_
else:
print("Telebe nomresi dogru daxil edilmeyib!")
studentNo = setStudentNo()
def setName():
name_ = input("Adi daxil edin: ").strip()
if len(name_) != 0:
return name_
else:
print("Ad bosh ola bilmez! Daxil edin.")
name = ""
if bool(studentNo):
name = setName()
def setSurname():
surname_ = input("Soyadi daxil edin: ").strip()
if len(surname_) != 0:
return surname_
else:
print("Soyad bosh ola bilmez! Daxil edin.")
surname = ""
if bool(name):
surname = setSurname()
def setEmail():
email_ = input("Emaili daxil edin: ").strip()
if email_.find("@") != -1 and len(email_) != 0:
return email_
else:
print(
"Email melumatlari dogru daxil edilmeyib! Tekarar daxil edin.")
email = ""
if bool(surname):
email = setEmail()
def setPhone():
phone_ = input(
"Telefon nomresini daxil edin (+994_________): ").strip()
if phone_.startswith("+994") and len(
phone_) == 13 and len(phone_) != 0:
return phone_
else:
print("Telefon nomresi dogru daxil edilmeyib! Tekrar daxil edin.")
phone = ""
if bool(email):
phone = setPhone()
if bool(studentNo) and bool(name) and bool(surname) and bool(
email) and bool(phone):
obj = student.Student(studentNo, name, surname, email, phone)
student.userList.append(obj)
def phantom():
return student.Student(data, identifier=identifier, headers =
course.students[0].headers)
def process_student_file():
#Declare variables
#Declare file_found variable as True
file_found = True
#Declare good_data variable as True
good_data = True
#Exception Block
#Try opening your input file
try:
#Open input file
student_file = open(INPUT, 'r')
#Except if the file cannot be found,
except FileNotFoundError:
#Print error
print("Could not find", INPUT, "in the current directory.")
#Re-set variable
file_found = False
#If everything looks good, continue with logic
if file_found:
#Create a blank dictionary
student_dict = {}
#Read the first name line
student_data = student_file.readline().rstrip('\n')
#Initialize n
n=0
#Create student instances
while (student_data != ""):
#Split the string
student_list = student_data.split(':')
#Set uteid string equal to a variable
uteid = student_list[0]
#Set first name string to a variable
first_name = student_list[1]
#Set last name string to a variable
last_name = student_list[2]
#Create an index variable
index = int(3)
#Create a blank class list
class_list = []
#While the length of the student list is greater than the index,
while (len(student_list) > index):
#Set a variable equal to each number
class_1 = int(student_list[index])
#Append the numbers into a list
class_list.append(class_1)
#Change the index
index = index + 1
#Create a new student object
student_object = student.Student(uteid, first_name, last_name, class_list)
#Append to the student dictionary
student_dict.update({uteid: student_object})
#Read the first name line
student_data = student_file.readline().rstrip('\n')
#Return the student dictionary
return student_dict
# 模块 module
# PYTHONPATH
print(".................方法一...................")
import student
print(student.my_name)
print(student.list_name[2])
student.who_am_i("dennis")
kate = student.Student("kate.li",15,"female")
kate.who_am_i()
print("..................分割线...............")
import sys
print(sys.path)
print("..............................")
for line in sys.path:
print(line)
print(".................方法二...................")
from student import Student,my_name,who_am_i
kate = Student("kate.li",15,"female")
kate.who_am_i()
print(my_name)
print(who_am_i("robin"))
print(".................测试一...................")
my_name = "dell"
from student import my_name
print(my_name)
print(".................测试二...................")
my_name = "dell"
from student import my_name
my_name = "luis"
print(my_name)
import pickle, student
f = open("student.dat", "wb")
s = student.Student(123, "John", 90)
pickle.dump(s, f)
f.close()
def main():
print('Building database ...')
controller.createDB()
menu1 = menu.Menu()
id = ""
pw = ""
userRecord = None
authorized = False
while not authorized:
os.system('cls' if os.name == 'nt' else 'clear')
print("School Records Application")
#get id and password from user
id = menu1.getID()
if id == "":
print("Username cannot be blank.")
return
pw = menu1.getPassword()
if pw == "":
print("Password cannot be blank")
return
#authenticate
userRecord = controller.authenticate(id, pw)
if userRecord != None:
authorized = True
else:
print("Invalid login - Access denied")
input("Press enter to continue ...")
#end while
id = userRecord[0]
privilege = userRecord[5]
choice = ""
if privilege == 'student':
data = controller.getStudentData(id)
st = student.Student(data[0], data[1], data[2], data[3], data[4],
data[5], data[6])
os.system('cls' if os.name == 'nt' else 'clear')
menu1.welcome(st.firstName)
while choice != "0":
choice = menu1.studentMain(st.id)
if choice == '1':
menu1.viewStudentRecord(st.id)
elif choice == '2':
menu1.viewAllCourses()
elif choice == '3':
course1 = menu1.enrollMenu() #returns Course object
numStudents = controller.numStudentsInCourse(course1.id)
if numStudents[0] >= course1.studentLimit:
print("This class is full. Enrollment Aborted.")
return
#check if already enrolled
enrolled = controller.isEnrolled(st.id, course1.id)
if enrolled:
print(f"You are already enrolled in {course1.name}.")
else:
controller.enroll(st.id, course1.id)
print("You are now enrolled.")
elif choice == '0':
print("Goodbye!")
return
else:
print("Invalid entry.\n")
#pause and clear console
input("Press Enter to continue ...")
os.system('cls' if os.name == 'nt' else 'clear')
#End while
elif privilege == 'faculty':
data = controller.getFacultyData(id)
fac = faculty.Faculty(data[0], data[1], data[2], data[3], data[4],
data[5])
os.system('cls' if os.name == 'nt' else 'clear')
menu1.welcome(fac.firstName)
while choice != '0':
choice = menu1.facultyMain(fac.id)
if choice == '1':
menu1.facViewStudentRecord()
elif choice == '2':
menu1.viewCourseRecords(fac.id)
elif choice == '3':
menu1.gradeStudent(fac.id)
elif choice == '0':
print("Goodbye!")
else:
print("Invalid entry.\n")
#pause and clear console
input("Press Enter to continue ...")
os.system('cls' if os.name == 'nt' else 'clear')
# zc-cris
import student
person = student.Person('rose', 22)
person.eat() # rose is eatting~~~
student = student.Student('curry', 25, 190)
student.descripe() # 我叫curry, 今年25岁了，身高190, 我的书包的详细信息是：这是个adidas 的书包，价格：100
print("")
print("1. Add a student")
print("2. Remove a student")
print("3. Display grades for a student")
print("4. Display grades for all students")
print("5. Exit")
choice = int(input("Please make a selection from the menu above: "))
if choice == 1:
sFirst = input("What is students first name: ")
sLast = input("What is students last name: ")
courseId = input("What is the course id: ")
courseCredit = input("How many credit hours is it worth: ")
courseGrade = input("What was the grade achieved: ")
studentInfo = student.Student(sFirst, sLast)
course = collegecourse.CollegeCourse(courseId, courseCredit,
courseGrade)
studentInfo.addcourse(course)
studentdata.addstudent(studentInfo)
elif choice == 2:
try:
sId = int(
input(
"What is the student id of the student you wish to remove: "
))
studentdata.removestudent(sId)
except KeyError:
print("ID not found.")
elif choice == 3:
try:
#
# def __init__(self, message):
# super().__init__()
# self.message = message
#
# def get_exception_message(self):
# return self.message
if __name__ == '__main__':
group = group.Group()
stud1 = student.Student('Ivanenko', 'Ivan', 20, 95)
stud2 = student.Student('Prokopenko', 'Milana', 19, 90)
group.add_to_group(stud1)
group.add_to_group(stud2)
# print(group)
# print('*' * 80)
# group.remove_from_group(stud2)
# print(group)
# print('Id student is: ', group.search(stud2))
for stud in group:
print(stud)
def main():
survey = open("survey.txt", "r") # opens the file with list of students who filled out survey
lines = survey.readlines()
name = [] # list that stores the first and last names of students that filled out the survey
ID = [] # list that stores the career IDs of students that filled out survey
email = [] # list that stores the email of students that filled out survey
major = [] # list that stores the major of students that filled out survey
year = [] # list that stores the classification year of students that filled out survey
section = [] # list that stores requested class section of students that filled out survey
students = [None] * len(lines) # list of students (objects)
index = 0 # first index in the students list
for line in lines:
name.append(line[:18].strip())
ID.append(line.split()[2]) # gets the Purdue username of the student
email.append(line.split()[3]) # gets the Purdue email of the student
major.append(line[80:120].strip()) # gets the major of the student
year.append(line[120:140].strip()) # gets the class year of the student
section.append(line[140:].strip()) # gets the section requested from the student
students[index] = student.Student(name[index], ID[index], email[index], major[index], year[index], section[index]) # stores the retrieved attributes in student object
index = index + 1 # changes index
survey.close() # closes the survey file
###########################################################################
# store the attriubutes of students in the data base into different lists #
###########################################################################
database = open("studentlist.txt", "r") # opens the data base with correct student information
lines = database.readlines()
studentDatabase = [] # a list of students containing correct attributes
index = 0
for line in lines:
# stores students in database in list
studentDatabase.append(line.split())
# joins the first and last name
studentDatabase[index][0] = ' '.join(studentDatabase[index][0 : 2])
del(studentDatabase[index][1])
# corrects the issue with the length of major
if(len(studentDatabase[index]) == 8):
studentDatabase[index][3] = ' '.join(studentDatabase[index][3 : 7])
del(studentDatabase[index][4 : 7])
if(len(studentDatabase[index]) == 7):
studentDatabase[index][3] = ' '.join(studentDatabase[index][3 : 6])
del(studentDatabase[index][4 : 6])
if(len(studentDatabase[index]) == 6):
studentDatabase[index][3] = ' '.join(studentDatabase[index][3 : 5])
del(studentDatabase[index][4 : 5])
index = index + 1 # changes the index
database.close() # closes the data base file
delete = [] # the indexes of student objects that need to be deleted
##########################
# Corrections for Survey #
##########################
# 1. Remove duplicates (students that filled out survey twice)
for outerCount in range(len(students)):
for innerCount in range(outerCount + 1, len(students)):
if(students[outerCount].get_name() == students[innerCount].get_name()): # finds the duplicate student
delete.append(innerCount)
# deletes the duplicates in the list
for index in delete:
students[index] = None # creates none for the object
students = list(filter(None, students)) # removes the empty students from the list
# Find the index of where each student appears in the database
for index in range(len(studentDatabase)):
for lcv in range(len(students)):
count = studentDatabase[index].count(students[lcv].get_name())
if(count > 0):
students[lcv].set_index(index) # once the index is found, stores index in student object and exists loop
break
# 2. Students that misspelled name
for index in range(len(students)):
if(students[index].get_index() == None): # finds a student that mispelled name
firstName = students[index].get_name().split()[0] # splits the student's first name
lastName = students[index].get_name().split()[1] # splits the student's last name
for count in range(len(studentDatabase)): # checks student database for most similar match
firstName_Compare = studentDatabase[count][0].split()[0] # first name of the student being compared
lastName_Compare = studentDatabase[count][0].split()[1] # last name of the student being compared
if(firstName[0:3] == firstName_Compare[0:3] and lastName[0:3] == lastName_Compare[0:3]): # compares the first three letters of the first and last name for a match
students[index].set_name(studentDatabase[count][0]) # sets the correct name
students[index].set_index(count) # sets the correct index
# 3. Students that entered incorrect ID
for index in range(len(students)):
if(students[index].get_ID().isnumeric()): # determines if the ID is the student's 10-digit Purdue ID
correctID = studentDatabase[students[index].get_index()][1] # finds the correct ID in the student database
students[index].set_ID(correctID) # corrects the ID that was originally in the survey
# 4. Students that entered incorrect email
for index in range(len(students)):
if('@purdue.edu' not in students[index].get_email()): # determines if the email is not the student's Purdue email
correctEmail = studentDatabase[students[index].get_index()][2] # finds the correct email in the student database
students[index].set_email(correctEmail) # corrects the email that was originally in the survey
# 5. Students that entered incorrect major
for index in range(len(students)):
if(len(students[index].get_major()) < 4): # determines if the major is an abreviation
correctMajor = studentDatabase[students[index].get_index()][3] # finds the correct major in the student database
students[index].set_major(correctMajor) # corrects the major that was originally in the survey
####################################################################################################################
# After all corrections, write the first 110 students in each section who filled out survey to two different files #
####################################################################################################################
wednesday = open("wednesday.txt", "w") # creates a Wednesday text file that stores students for its section
thursday = open("thursday.txt", "w") # creates a Thursday text file that stores students for its section
# classification years
classification = {"Freshman": 0, "Sophomore": 0, "Junior": 0, "Senior": 0}
# majors
majors = {"First Year Engineering": 0, "Mechanical Engineering": 0, "Nuclear Engineering": 0, "Chemical Engineering": 0, "Interdisciplinary Engineering": 0, "Aeronautical & Astronautical Engineering": 0, "Electrical & Computer Engineering": 0, "Multidisciplinary Engineering": 0, "Enviornmental & Ecological Engineering": 0, "Biomedical Engineering": 0, "Materials Engineering": 0, "Civil Engineering": 0, "Construction Engineering Management": 0}
# Updates the first 110 students in Wednesday section
count = 0
index = 0
while(count < 110):
# collets the attributes to be printed to the file
studentName = students[index].get_name()
studentID = students[index].get_ID()
studentEmail = students[index].get_email()
studentMajor = students[index].get_major()
studentYear = students[index].get_year()
if(students[index].get_section() == 'Wednesday'): # prints student information to Wednesday section
wednesday.write('{0:25}{1:25}{2:35}{3:45}{4}\n'.format(studentName, studentID, studentEmail, studentMajor, studentYear))
count = count + 1 # increments count
# records the statistics for class year
classification[students[index].get_year()] = classification.get(students[index].get_year(), 0) + 1
# records the statistics for major
majors[students[index].get_major()] = majors.get(students[index].get_major(), 0) + 1
index += 1 # increments the index
# Updates the first 110 students in Thursday section
count = 0
index = 0
while(count < 110):
# collets the attributes to be printed to the file
studentName = students[index].get_name()
studentID = students[index].get_ID()
studentEmail = students[index].get_email()
studentMajor = students[index].get_major()
studentYear = students[index].get_year()
if(students[index].get_section() == 'Thursday'): # prints student information to Thursday section
thursday.write('{0:25}{1:25}{2:35}{3:45}{4}\n'.format(studentName, studentID, studentEmail, studentMajor, studentYear))
count = count + 1 # increments count
# records the statistics for class year
classification[students[index].get_year()] = classification.get(students[index].get_year(), 0) + 1
# records the statistics for major
majors[students[index].get_major()] = majors.get(students[index].get_major(), 0) + 1
index += 1 # increments the index
wednesday.close() # closes the wednesday file
thursday.close() # closes the thursday file
###############################################################################
# Create two charts that show statistics of the students in the Python course #
###############################################################################
# Creation of bar graph for year distribution of students
plt.bar(range(len(classification)), classification.values(), align='center')
plt.xticks(range(len(classification)), list(classification.keys()))
# creates the labels for the bar graph
plt.title('Year Distribution of Students')
plt.xlabel('Classification Year')
plt.ylabel('Number of Students')
plt.show()
plt.savefig('yearDistribution.png') # saves the figure
plt.close() # closes the figure
import student as st
import mentor as mr
def separator():
print('=' * 60)
student1 = st.Student('Vasya', 'Pupkin', 'male')
student2 = st.Student('Pupka', 'Vasina', 'female')
lecturer1 = mr.Lecturer('Mr', 'Prepod')
lecturer2 = mr.Lecturer('Mrs', 'Uchilka')
reviewer1 = mr.Reviewer('Mr', 'Review1')
reviewer2 = mr.Reviewer('Mrs', 'Review2')
student1.courses_in_progress += ['Python'] + ['GIT']
student2.courses_in_progress += ['Python']
student1.finished_courses += ['English']
student2.finished_courses += ['GIT']
lecturer1.courses_attached += ['Python'] + ['GIT']
lecturer2.courses_attached += ['Python']
reviewer1.rate_hw(student1, 'Python', 7)
reviewer2.rate_hw(student1, 'Python', 6)
reviewer1.rate_hw(student1, 'GIT', 10)
reviewer2.rate_hw(student1, 'GIT', 10)
reviewer1.rate_hw(student2, 'Python', 9)
reviewer2.rate_hw(student2, 'Python', 8)
def add_student(self, no, name, surname, remark):
self._student_list.append(student.Student(no, name, surname, remark))
#!/usr/bin/env python3
import student
ray = student.Student('David','0987654321','CTY')
print(ray.displayStudent())
import pickle,student
f = open("student.dat", "wb")
student = student.Student(1, "Paula", 9)
# Arguments: Object to serialize and file
pickle.dump(student, f)
f.close()
import calculator # We are importing calculator.py as a module here. We skip .py form the filename
import student
result = calculator.add(2, 4)
print(result)
result = calculator.multiply(2, 4)
print(result)
s1 = student.Student("Lily",
20) # package / module name DOT method / class name
# result = add(2, 4) This throws an error. Because add is searched for in the same file
c1 = student.Classroom("Class X")
student.print_all(s1, c1)
print(student.SCHOOL_NAME)
import student
import qualification_calculator
x = student.Student("Pawel", "Miry", "91081001334")
print(x)
res = qualification_calculator.QualificationCalculator(x.get_exam_results(), "Informatyka Stosowana")
print(res.get_points())
print(qualification_calculator.QualificationCalculator(x.get_exam_results(), "Informatyka Stosowana"))
print(qualification_calculator.QualificationCalculator(x.get_exam_results(), "Ekonomia"))
print(qualification_calculator.QualificationCalculator(x.get_exam_results(), "Zarzadzanie"))
print("#####################################################")
#y = student.Student("Twoja", "Matka", "02271409862")
#print(y)
#print(qualification_calculator.QualificationCalculator(y.get_exam_results(), "computer_science"))
#print(qualification_calculator.QualificationCalculator(y.get_exam_results(), "economics"))
#print(qualification_calculator.QualificationCalculator(y.get_exam_results(), "management"))
import pickle, student
f = open("student.dat", "wb")
s = student.Student(112, "Umair", 95)
pickle.dump(s, f)
f.close()
import student
# Create 'student', an Instance of Student()
mark = student.Student('Mark', '123')
james = student.HighSchoolStudent('James', '222')
print(james.get_school_name())
print(mark)
def __init__(self):
#create a list of student Object
#self__list_student will store object of Student class
self.__list_student = []
self.__list_job = []
self.__list_settings = []
self.__list_profiles = []
#add title for the student_data.csv
if not os.path.isfile(FILENAME):
with open(FILENAME,"w") as file:
writer_csv = csv.writer(file)
writer_csv.writerow(("User_Name","Password","First_Name","Last_Name"))
#add data from student_data.csv to __self.__list_student
with open(FILENAME,"r") as file:
reader_csv = csv.reader(file)
for row in reader_csv:
if row != []:
self.__list_student.append(s.Student(row[0], row[1], row[2], row[3]))
#add title for the job_data.csv
if not os.path.isfile(FILENAME_JOB):
with open(FILENAME_JOB,"w") as file:
writer_csv = csv.writer(file)
writer_csv.writerow(("Title","Description","Employer","Location","Salary","Post_Name"))
#add data from job_data to __self.__list_job
with open(FILENAME_JOB,"r") as file:
reader_csv = csv.reader(file)
for row in reader_csv:
if row != []:
self.__list_job.append(j.Job(row[0], row[1], row[2], row[3], row[4], row[5]))
#add title for the settings.csv
if not os.path.isfile(FILENAME_STG):
with open(FILENAME_STG,"w") as file:
writer_csv = csv.writer(file)
writer_csv.writerow(("user", "email_notif","sms_notif","targeted_ads","language"))
#add data from settings.csv to __self.__list_settings
with open(FILENAME_STG,"r") as file:
reader_csv = csv.reader(file)
for row in reader_csv:
if row != []:
self.__list_settings.append(stg.Settings(row[0], row[1], row[2], row[3], row[4]))
#add title for the profiles.csv
if not os.path.isfile(FILENAME_PRO):
with open(FILENAME_PRO,"w") as file:
writer_csv = csv.writer(file)
writer_csv.writerow(("user", "title","major","university","bio", "experience", "education"))
#add data from profiles.csv
with open(FILENAME_PRO,"r") as file:
reader_csv = csv.reader(file)
for row in reader_csv:
if row != []:
self.__list_profiles.append(pro.Profiles(row[0], row[1], row[2], row[3], row[4], row[5], row[6]))
import student
import ChineseChef
student1 = student.Student("John", "Business", 3.2, False)
student2 = student.Student("George", "Information Technology", 3.8, True)
ChineseChef.chineseChef.make_chicken('A')
ChineseChef.chineseChef.make_troll('A')
print(student1.gpa)
import pickle,student
f = open("student.dat","wb")
s = student.Student(123,"john",90)
pickle.dump(s,f)
f.close()
)
#This course can have only one student, so you need to register fast
c = course.Course("Guzman", "11:00 MWF", "CFA 123", 1, \
"S2020", "A", master.find_course( \
master_course.MasterCourse("History of Jazz",
"MUS", "275"))
)
d = course.Course("Zaring", "8:00 MWF", "Olin 202", 250, \
"S2020", "A", master.find_course( \
master_course.MasterCourse("Intro to CS", \
"CS", "150"))
)
P = student.Student("ZZZZZZx Dikelsky", 404191)
i = student.Student("Alex Dikelsky", 404191)
j = student.Student("Laura Bailey", 12345)
a.add_student(j)
a.add_student(P)
a.add_student(i)
b.add_student(i)
b.add_student(j)
c.add_student(i) #Alex got into the Jazz class first
c.add_student(
j) #Laura is in the queue, so she can only enter if Alex drops the class
d.add_student(i)
print(
"This is the list of MasterCourses, simular to those on the Luther Website"
#主模块
import student as stu
L = []
s1 = stu.Student("lwb", 22, 90)
s2 = stu.Student("tiantian", 20, 89)
L.append(s1)
L.append(s2)
s2.setScore(88)
for x in L:
print(x)
#!/usr/bin/env python3 import pickle, student file_name = "student.dat" #opens student.dat for binary writing f = open(file_name, "wb") s = student.Student(101, "John", 90) pickle.dump(s, f) f.close()
# create 3 instances of Student class, with different names
# create 2 instances of Course, wioth different names and assign students
import student
students = []
students.append(student.Student('Bill'))
students.append(student.Student('Bob'))
students.append(student.Student('Jenny'))
students[0].recordGrade(100)
students[1].recordGrade(75)
students[2].recordGrade(92)
students[0].recordGrade(95)
students[1].recordGrade(50)
students[2].recordGrade(93)
for student in students:
print('Student: ' + student.firstName + ' has ' +
str(len(student.grades)) + ' grades, with an average of ' +
str(student.average()))