Question

我正在一个项目上，想要将电子邮件的值从一个软件包打包到另一个软件包中，以使用该值更新数据，但是我遇到了这个错误

Exception in Tkinter callback

回溯（最近通话最近一次）：

调用中的文件“ C：\ Program Files（x86）\ Python37-32 \ lib \ tkinter__init __。py”，行1705 返回self.func（* args）

文件“ D：/ Boring college / PyProject / MCB2 / sign_up_2.py”，第69行，位于signup_button_click中 sign_up_1.SignUp.send_email（））） TypeError：send_email（）缺少1个必需的位置参数：“ self”

当我在send_email（）中输入self时，它说“期望类型”为“ SignUp”，而不是“ SafetyQuestion” 注册是sign_up_1中存在的类的名称

这是产生错误的代码：

from tkinter import *
from tkinter.ttk import *
from sqlite3 import *
from tkinter import messagebox
import sign_up_1
import Home_page


class SafetyQuestion(Tk):
    def __init__(self, *args, **kwargs):
        Tk.__init__(self, *args, **kwargs)

        self.title("Contact Book")
        self.geometry('500x400')

        self.style = Style()
        self.style.configure('Head.TFrame', background='Blue')

        self.head_frame = Frame(self, style='Head.TFrame')
        self.head_frame.pack(side=TOP, fill=X)

        self.style.configure('Head.TLabel', foreground='White', background='Blue', font=(NONE, 15))

        self.head_label = Label(self.head_frame, text='Select one of the following Question:',
                                style='Head.TLabel')
        self.head_label.pack(pady=3)

        val = StringVar()
        # val.set('Empty')

        self.r1 = Radiobutton(self, text='What is your nickname?', variable=val, value='What?')                
        self.r1.pack(anchor=W, pady=10, padx=10)
        self.r2 = Radiobutton(self, text='What is the name of your pet?', variable=val,
                              value='What is the name of your pet?')
        self.r2.pack(anchor=W, pady=10, padx=10)
        self.r3 = Radiobutton(self, text='What is your favourite food?', variable=val,
                              value='What is your favourite food?')
        self.r3.pack(anchor=W, pady=10, padx=10)
        self.r4 = Radiobutton(self, text='What ia your favourite Bike?', variable=val,
                              value='What ia your favourite Bike?')
        self.r4.pack(anchor=W, pady=10, padx=10)

        self.answer_frame = Frame(self, style='Head.TFrame')
        self.answer_frame.pack(side=BOTTOM, fill=X)

        self.style.configure('Ans.TLabel', foreground='White', background='Blue', font=(NONE, 12))

        self.ans_label = Label(self.answer_frame, text='Answer:', style='Ans.TLabel')
        self.ans_label.grid(row=0, column=0, pady=2)

        self.style.configure('Ans.TEntry', foreground='Red', font=(NONE, 12))

        self.ans_entry = Entry(self.answer_frame, style='Ans.TEntry', width=25)
        self.ans_entry.grid(row=0, column=1, pady=2)

        self.style.configure('Ans.TButton', forefround='Blue', font=(NONE, 12))

       self.ans_sub_button = Button(self.answer_frame, text='Sign Up', style='Ans.TButton',
                                    command=self.signup_button_click)
       self.ans_sub_button.grid(row=0, column=2, pady=10, padx=150)

    def signup_button_click(self):
        signup_con = connect('AppDatabase.db')
        signup_cur = signup_con.cursor()
        signup_cur.execute("""update LoginData 
                            set Question='{0}', Answer='{1}'
                             where Email='{1}'""".format(self.val.get(),
                                                         self.ans_entry.get(),
                                                        sign_up_1.SignUp.send_email()))
        signup_con.commit()
        signup_con.close()
        messagebox.showinfo('Successful', 'Successfully Signed Up')
        self.destroy()
        Home_page.HomePage()


if __name__ == "__main__":
    safety_question = SafetyQuestion()
    safety_question.mainloop()

Answer 1

似乎是一个简单的错误。您实际上并没有将val变量另存为实例变量。调用val = StringVar()创建一个onetime变量，在__init__方法完成运行后您将失去对它的引用。轻松解决：

self.val = StringVar()

Tkinter回调Traceback中的异常（最近一次调用为last）：

1 个答案: