为什么尝试在 Python 中创建对象时出现递归错误？ [复制]

原文标题 ：Why am I getting a recursion error when trying to create an object in Python? [duplicate]

我有一个程序可以从 GUI 窗口中接收文本和信息，然后自动发送一封书面电子邮件。这是为了一份校园工作（实验室服务员），我厌倦了一遍又一遍地为那些把东西留在计算机实验室的学生写相同的电子邮件。几乎是我第一次用 Python 编写（来自 Java 和 C）。

我打算获取信息，为包含电子邮件、密码、姓名等的所有信息创建对象 Lab Attendant 和 Student。然后它从对象中的信息创建一个字符串，并使用 smtplib 发送电子邮件。

我遇到的问题是，当它在对象中设置属性时，从第一封实验室助理属性电子邮件开始，它只是在 set 函数中反复循环。

我不知道为什么，我试过让它回归爆发，但它甚至没有达到那条线。它只是停留在第 52 行

   self.email = email

这是完整的代码。

from tkinter import *  # GUI library
import tkinter.messagebox
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart

# @author: xxxx
# Sends automated emails out for lab attendant job

class Student:
    def __init__(self, name, email, item):
        self.name = name
        self.email = email
        self.item = item

    @property
    def email(self):
        return self.email

    @email.setter
    def email(self, email):
        self.email = email

    @property
    def name(self):
        return self.name

    @name.setter
    def name(self, name):
        self.name = name

    @property
    def item(self):
        return self.item

    @item.setter
    def item(self, item):
        self.item = item

class LabAttendant:
    def __init__(self, email, password, lab):
        self.email = email
        self.password = password
        self.lab = lab

    @property
    def email(self):
        return self.email

    @email.setter
    def email(self, email):
        self.email = email

    @property
    def password(self):
        return self.password

    @password.setter
    def password(self, password):
        self.password = password

    @property
    def lab(self):
        return self.lab

    @lab.setter
    def lab(self, password):
        self.password = password

def SendEmail(labattendant, student):
    # message = MIMEMultipart()
    # message['From'] = labattendant.email
    # message['To'] = student.email
    # message['Subject'] = student.item + " left in " + labattendant.lab
    if "id" == student.item:
        body = "Hello " + student.name + ",\n I believe you left your " + student.item + " in the " + labattendant.lab \
               + " computer lab. If so, please stop by the " + labattendant.lab + " computer lab "
    else:
        body = "Hello " + student.name + ",\n I believe you left your " + student.item + " in the " + labattendant.lab\
               + " computer lab. If so, please stop by the " + labattendant.lab\
               + " computer lab with your ID and ask the lab " + "attendant to return your" + student.item + "to you.\n"


class GUI:
    def __init__(self, master):
        frame = Frame(master)
        frame.pack()

        student_info_frame = Frame(frame)
        student_info_frame.pack(side=TOP)
        labattendant_info_frame = Frame(frame)
        labattendant_info_frame.pack(side=TOP)

        # Student name, email, item
        student_name_label = Label(student_info_frame, text="Student name: ")
        student_name_label.grid(row=0, column=0)
        student_name_entry = Entry(student_info_frame)
        student_name_entry.grid(row=0, column=1)
        student_email_label = Label(student_info_frame, text="Student email: ")
        student_email_label.grid(row=1, column=0)
        student_email_entry = Entry(student_info_frame)
        student_email_entry.insert(END, '@school.edu')
        student_email_entry.grid(row=1, column=1)
        student_item_label = Label(student_info_frame, text="Item left behind: ")
        student_item_label.grid(row=2, column=0)
        student_item_entry = Entry(student_info_frame)
        student_item_entry.grid(row=2, column=1)

        # Lab attendant email, password, lab working in
        labattendant_email_label = Label(labattendant_info_frame, text="Your email: ")
        labattendant_email_label.grid(row=3, column=0)
        labattendant_email_entry = Entry(labattendant_info_frame)
        labattendant_email_entry.insert(END, '@school.edu')
        labattendant_email_entry.grid(row=3, column=1)
        labattendant_password_label = Label(labattendant_info_frame, text="Email password: ")
        labattendant_password_label.grid(row=4, column=0)
        labattendant_password_entry = Entry(labattendant_info_frame, show='*')
        labattendant_password_entry.grid(row=4, column=1)
        labattendant_lab_label = Label(labattendant_info_frame, text="Current lab: ")
        labattendant_lab_label.grid(row=5, column=0)
        lab_defualt = StringVar(labattendant_info_frame)
        labattendant_lab_menu = OptionMenu(labattendant_info_frame, lab_defualt, "MCT054", "CUB124", "GRH106")
        labattendant_lab_menu.grid(row=5, column=1)

        # Button handler for the submit button
        def submit_on_click():
            if "@school.edu" not in labattendant_email_entry.get():
                tkinter.messagebox.showwarning("Error", "Please use your @school.edu email.")
                labattendant_email_entry.delete(0, 'end')
            else:
                labattendant = LabAttendant(labattendant_email_entry.get(), labattendant_password_entry.get(),
                                            labattendant_lab_menu.cget("text"))
                student = Student(student_name_entry.get(), student_email_entry.get(), student_item_entry.get().lower())
                SendEmail(labattendant, student)


        # Collects data and sends it
        submit_button = Button(frame, text="Send Email", command=submit_on_click)
        submit_button.pack(side=BOTTOM)

root = Tk()
GUI = GUI(root)
root.mainloop()