带有tkinter的Python属性设置器无限循环

我有一个程序，可以从GUI窗口接收文本和信息，并自动发送书面电子邮件。这是给我的一个校园工作实验室服务员的，我已经厌倦了为那些把东西留在计算机实验室的学生一遍又一遍地写同样的电子邮件。这几乎是我第一次使用Java和C语言编写Python

我打算接收这些信息，让objects实验室助理和学生获得包含电子邮件、密码、姓名等的所有信息。然后它从对象中的信息创建一个字符串，并使用smtplib发送一封电子邮件

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，我试着给它一个突破的回报，但它甚至没有达到那条线。它只是停留在第52行

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()

---

属性名称不能与同一类中的属性名称相同。

属性名称不能与同一类中的属性名称相同。

在Python中，普通属性访问不需要getter和setter。仅当用户访问和/或修改属性时需要运行特殊代码时，才使用@属性。当您这样做时，您必须注意命名，以避免遇到问题

class Student(object):

    def __init__(self, name, email, item):

        # For example, there might be no need for name and item properties.
        self.name = name
        self.item = item

        # But maybe we want to validate email addresses.
        # Note that we will store the email address in self._email.
        self._email = None
        self.email = email

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

    @email.setter
    def email(self, email):
        if email_is_valid(email):
            self._email = email
        else:
            raise ValueError('Invalid email')

def email_is_valid(email):
    return '@' in email

print Student('x', 'a@foo.com', 1).email
print Student('y', 'bar', 2).email

---

在Python中，普通属性访问不需要getter和setter。仅当用户访问和/或修改属性时需要运行特殊代码时，才使用@属性。当您这样做时，您必须注意命名，以避免遇到问题

class Student(object):

    def __init__(self, name, email, item):

        # For example, there might be no need for name and item properties.
        self.name = name
        self.item = item

        # But maybe we want to validate email addresses.
        # Note that we will store the email address in self._email.
        self._email = None
        self.email = email

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

    @email.setter
    def email(self, email):
        if email_is_valid(email):
            self._email = email
        else:
            raise ValueError('Invalid email')

def email_is_valid(email):
    return '@' in email

print Student('x', 'a@foo.com', 1).email
print Student('y', 'bar', 2).email