使用for循环将值插入到tkinter输入字段

Question

我正在构建一个简单的tkinter密码程序，并且遇到问题。我收到以下错误信息：

Exception in Tkinter callback 
Traceback (most recent call last): 
    File "/usr/lib/python3.4/tkinter/__init__.py", line 1536, in __call__ 
    return self.func(*args) 
    File "password.py", line 23, in pass_gen 
    PassField.insert(0, random.choice(string.digits + string.ascii_letters), end='') 
TypeError: insert() got an unexpected keyword argument 'end' 

如果我删除末=“”错误消息就会消失，但如预期的代码不起作用。我最终得到一个数字密码而不是所需的长度。

import random 
import string 

from tkinter import * 
from tkinter import ttk 

root = Tk() 
strength = IntVar() 
length = DoubleVar() 
root.title('Password Generator') 

def pass_gen(event): 
    lengthy = int(PassLength.get()) 
    print(lengthy) 
    if strength.get() == 1: 
     for i in range(0, lengthy): 
      PassField.delete(0, 'end') 
      PassField.insert(0, random.choice(string.ascii_letters), end='') 

    elif strength.get() == 2: 
     for i in range(0, lengthy): 
      PassField.delete(0, 'end') 
      PassField.insert(0, random.choice(string.digits + string.ascii_letters), end='') 

    elif strength == 'x': 
     for i in range(0, lengthy): 
      PassField.delete(0, 'end') 
      PassField.insert(0, random.choice(string.punctuation + string.digits + string.ascii_letters), end='') 


Radiobutton(root, text="Weak", variable=strength, value=1).grid(row=0, column=0, sticky=N) 
Radiobutton(root, text="Strong", variable=strength, value=2).grid(row=0, column=1, sticky=N) 
Radiobutton(root, text="Extra-strong", variable=strength, value=3).grid(row=0, column=2, sticky=N) 

Label(root, text='Length').grid(row=1, column=0, sticky=W, padx=4) 
PassLength = Scale(root, variable=length, from_=0, to=30, orient=HORIZONTAL) 
PassLength.grid(row=1, column=1) 

Label(root, text='Password').grid(row=2, sticky=W, padx=4) 
PassField = Entry(root) 
PassField.grid(row=2, column=1, sticky=E, pady=4) 

generateButton = Button(root, text='Generate') 
generateButton.bind("<Button-1>", pass_gen) 
generateButton.grid(row=2, column=2,sticky=E) 

root.mainloop() 

我很感激您的意见。 TIA

Answer 1

也许你需要insert('end', ...)

import tkinter as tk 

root = tk.Tk() 

p = tk.Entry(root) 
p.pack() 

p.insert(0, 'a') 
p.insert('end', 'b') 

root.mainloop() 

但除去delete(0, 'end')，因为你删除页首页上页的数据。

Answer 2

发现来连接密码的正确方法，这是我更新的代码：

import random 
import string 

from tkinter import * 
from tkinter import ttk 

root = Tk() 
strength = IntVar() 
length = DoubleVar() 
root.title('Password Generator') 
def pass_gen(event): 
    lengthy = int(PassLength.get()) 

    if strength.get() == 1: 
     list = [] 
     for i in range(0, lengthy): 
      list.append(random.choice(string.ascii_letters)) 
      password = ''.join(list) 
      PassField.delete(0, 'end') 
      PassField.insert(0, password) 

    elif strength.get() == 2: 
     list = [] 
     for i in range(0, lengthy): 
      list.append(random.choice(string.digits + string.ascii_letters)) 
      password = ''.join(list) 
      PassField.delete(0, 'end') 
      PassField.insert(0, password) 

    elif strength.get() == 3: 
     list = [] 
     for i in range(0, lengthy): 
      list.append(random.choice(string.punctuation + string.digits + string.ascii_letters)) 
      password = ''.join(list) 
      PassField.delete(0, 'end') 
      PassField.insert(0, password) 


Radiobutton(root, text="Weak", variable=strength, value=1).grid(row=0, column=0, sticky=N) 
Radiobutton(root, text="Strong", variable=strength, value=2).grid(row=0, column=1, sticky=N) 
Radiobutton(root, text="Extra-strong", variable=strength, value=3).grid(row=0, column=2, sticky=N) 

Label(root, text='Length').grid(row=1, column=0, sticky=W, padx=4) 
PassLength = Scale(root, variable=length, from_=0, to=20, orient=HORIZONTAL) 
PassLength.grid(row=1, column=1) 

Label(root, text='Password').grid(row=2, sticky=W, padx=4) 
PassField = Entry(root) 
PassField.grid(row=2, column=1, sticky=E, pady=4) 

generateButton = Button(root, text='Generate') 
generateButton.bind("<Button-1>", pass_gen) 
generateButton.grid(row=2, column=2,sticky=E) 

root.mainloop()