Question

我正在尝试创建一个简单的Tkinter脚本，该脚本包含三个变量（名字，姓氏，公司）并生成一些电子邮件可能性。

这是我的代码：

from Tkinter import *

class Application(Frame):

        def __init__(self, master):
            Frame.__init__(self, master)
            self.grid()
            self.create_widgets()

        def create_widgets(self):
            self.firstname = Entry(self, text="First")
            self.firstname.grid(row= 0, column = 0, columnspan = 2, sticky = W)
            self.firstname.insert(0, "First Name")

            self.lastname = Entry(self)
            self.lastname.grid(row= 1, column = 0, columnspan = 2, sticky = W)
            self.lastname.insert(0, "Last Name")


            self.companyname = Entry(self)
            self.companyname.grid(row= 2, column = 0, columnspan = 2, sticky = W)
            self.companyname.insert(0, "Company Name")

            self.button = Button(self, text="Generate!", command=self.gen_email(self.firstname.get(),self.lastname.get(),self.companyname.get()))
            self.button.grid()

            #where the generated emails will go
            self.text = Text(self, width = 35, height=5, wrap =WORD)
            self.text.grid(row=4,column=0, columnspan=2, sticky=W)


        def gen_email(self, firstname, lastname, companyname):
            self.email_list = []
            self.email_list.append(firstname + "." + lastname + "@" + companyname + ".com")
            self.email_list.append(firstname[0] + lastname + "@" + companyname + ".com")
            self.email_list.append(firstname + lastname[0] + "@" + companyname + ".com")
            self.email_list.append(firstname + "@" + companyname + ".com")
            self.email_list.append(firstname + "_" + lastname +"@" + companyname + ".com")

            self.text.insert(0.0, self.email_list) 




root = Tk()
root.title("Email Generator")
root.geometry("400x400")

app = Application(root)
root.mainloop()

尝试在屏幕上显示生成的电子邮件时收到错误消息：

 Traceback (most recent call last):
  File "emailgen.py", line 65, in <module>
    app = Application(root)
  File "emailgen.py", line 21, in __init__
    self.create_widgets()
  File "emailgen.py", line 39, in create_widgets
    self.button = Button(self, text="Generate!", command=self.gen_email(self.firstname.get(),self.lastname.get(),self.companyname.get()))
  File "emailgen.py", line 56, in gen_email
    self.text.insert(0.0, self.email_list) 
AttributeError: Application instance has no attribute 'text'

我在此处收到错误：self.text.insert(0.0, self.email_list)，但在程序中定义了self.text 并已添加到网格中。我怎样才能使这个功能起作用，因为我似乎在这里遗漏了一些东西。

Answer 1

您需要为按钮命令提供lambda：

    self.button = Button(self, text="Generate!", 
                         command=lambda :self.gen_email(self.firstname.get(),
                                                self.lastname.get(),
                                                self.companyname.get()))

更好的方法是拥有 gen_email函数中的self.firstname.get(), self.lastname.get(), self.companyname.get()。这样你就可以消除lambda：

from Tkinter import *

class Application(Frame):

        def __init__(self, master):
            Frame.__init__(self, master)
            self.grid()
            self.create_widgets()

        def create_widgets(self):
            self.firstname = Entry(self, text="First")
            self.firstname.grid(row= 0, column = 0, columnspan = 2, sticky = W)
            self.firstname.insert(0, "First Name")

            self.lastname = Entry(self)
            self.lastname.grid(row= 1, column = 0, columnspan = 2, sticky = W)
            self.lastname.insert(0, "Last Name")


            self.companyname = Entry(self)
            self.companyname.grid(row= 2, column = 0, columnspan = 2, sticky = W)
            self.companyname.insert(0, "Company Name")

            self.button = Button(self, text="Generate!", 
                                 command=self.gen_email)
            self.button.grid()

            #where the generated emails will go
            self.text = Text(self, width = 35, height=5, wrap =WORD)
            self.text.grid(row=4,column=0, columnspan=2, sticky=W)


        def gen_email(self):
            firstname = self.firstname.get()
            lastname =  self.lastname.get()
            companyname =  self.companyname.get()
            self.email_list = []
            self.email_list.append(firstname + "." + lastname + "@" + companyname + ".com")
            self.email_list.append(firstname[0] + lastname + "@" + companyname + ".com")
            self.email_list.append(firstname + lastname[0] + "@" + companyname + ".com")
            self.email_list.append(firstname + "@" + companyname + ".com")
            self.email_list.append(firstname + "_" + lastname +"@" + companyname + ".com")

            self.text.insert(0.0, self.email_list) 




root = Tk()
root.title("Email Generator")
root.geometry("400x400")

app = Application(root)
root.mainloop()

Tkinter脚本：插入文本时遇到问题

1 个答案: