Question

我是编程的初学者，我正在用tkinter编写一个简单的hangman游戏，不知道如何解决错误。

             Traceback (most recent call last):
  File "/Users/ana/Documents/primer7.py", line 62, in <module>
    class MyGUI():
  File "/Users/ana/Documents/primer7.py", line 93, in MyGUI
    tkinter.mainloop()
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/tkinter/__init__.py", line 405, in mainloop
    _default_root.tk.mainloop(n)
AttributeError: 'NoneType' object has no attribute 'tk'

你可以帮我解决这个问题吗？整体代码应该没问题，有没有人有任何建议如何让它更简单/更简单？或者如何制作更好的GUI（按钮），我不太了解它？

import tkinter
import tkinter.messagebox
import random

#fruit category
easyWords = ['apple', 'orange', 'mango', 'peach', 'guava']
#space category
mediumWords = ['atmosphere', 'jupiter', 'quasar', 'satellite', 'asteroid']
#science category
hardWords = ['biochemical', 'hemoglobin', 'emulsify', 'reactant', 'dynamo']

def setting():

    wordChoice = ''

    difficulty = input('''Welcome to hangman, select your difficulty.
Type, easy, medium, or hard to begin:''')

    if difficulty == 'easy':

        wordChoice = easyWords.random
        print('You have selected easy mode, start guessing your letters now in the game window. The category is: fruit')

    if difficulty == 'medium':

        wordChoice = mediumWords.random
        print('You have selected medium mode, start guessing your letters now in the game window. The category is: space')

    if difficulty == 'hard':

        wordChoice = hardWords.random
        print('You have selected hard mode, start guessing your letters now in the game window. The category is: science')

def game():

    missGuess = 0
    guesses = ''

    for char in wordChoice:
        label3.print(char),

        if char in guesses:
            print(char),

        else:
            label3.print("_"),
            missGuess += 1

        if missGuess == 1:
            label1.print('head')
        if missGuess == 2:
            label1.print('torso')
        if missGuess == 3:
            label1.print('left arm')
        if missGuess == 4:
            label1.print('right arm')
        if missGuess == 5:
            label1.print('left leg')
        if missGuess == 6:
            label1.print('right leg'),

class MyGUI():
    def __init__(self):
        self.main_window = tkinter.tk()

        #create needed frames
        self.top_frame = tkinter.Frame(self.main_window)
        self.center_frame = tkinter.Frame(self.main_window)
        self.bottom_frame = tkinter.Frame(self.main_window)

        #create top frame labels
        self.label1 = tkinter.Label(self.top_frame,  text='Hangman parts:')
        self.label2 = tkinter.Label(self.top_frame,  text=' ')
        #center frame labels
        self.label3 = tkinter.Label(self.center_frame,  text=' ')
        #bottom frame labels
        self.label4 = tkinter.Label(self.bottom_frame,  text='Guess a letter:')
        self.entry1 = tkinter.Entry(self.bottom_frame, width=5)
        self.button1 = tkinter.Button(self.bottom_frame,  text='Guess', command=self.game) #calls the game method
        self.button2 = tkinter.Button(self.bottom_frame,  text='Exit',  command=self.main_window.destroy)

        #pack top frame labels
        self.label1.pack(side='left')
        self.label2.pack(side='right')
        #pack center frame
        self.label3.pack(side='top')
        #bottom frame
        self.label4.pack(side='left')
        self.entry1.pack(side='left')
        self.button1.pack(side='left')
        self.button2.pack(side='left')

    tkinter.mainloop()

setting()
main()

Answer 1

应在

dataset = open("data1.5.txt", "r")
array = dataset.read().split(", \n")

def float_report_errors(val):
    try:
        return float(val)
    except ValueError as e:
        print("float(", repr(val), ") -->", repr(e))

array2 = [float_report_errors(i) for i in array]
print("Indices with errors:", *(i for i,v in enumerate(array2) if v is None))

实例上调用

mainloop()。改变这一行：

tkinter.Tk()

为：

tkinter.mainloop()

另外，在self.main_window.mainloop()类的__init__方法下正确缩进该行。

所以MyGUI变为：

MyGUI

我希望它有所帮助。

作为旁注，代码中的任何位置都不会调用class MyGUI(): def __init__(self): self.main_window = tkinter.tk() #create needed frames self.top_frame = tkinter.Frame(self.main_window) self.center_frame = tkinter.Frame(self.main_window) self.bottom_frame = tkinter.Frame(self.main_window) #create top frame labels self.label1 = tkinter.Label(self.top_frame, text='Hangman parts:') self.label2 = tkinter.Label(self.top_frame, text=' ') #center frame labels self.label3 = tkinter.Label(self.center_frame, text=' ') #bottom frame labels self.label4 = tkinter.Label(self.bottom_frame, text='Guess a letter:') self.entry1 = tkinter.Entry(self.bottom_frame, width=5) self.button1 = tkinter.Button(self.bottom_frame, text='Guess', command=self.game) #calls the game method self.button2 = tkinter.Button(self.bottom_frame, text='Exit', command=self.main_window.destroy) #pack top frame labels self.label1.pack(side='left') self.label2.pack(side='right') #pack center frame self.label3.pack(side='top') #bottom frame self.label4.pack(side='left') self.entry1.pack(side='left') self.button1.pack(side='left') self.button2.pack(side='left') self.main_window.mainloop()，并且提交的代码中也无法使用MyGUI函数。我不知道你游戏的逻辑，所以我所做的只是解决了错误信息，剩下的由你决定。

什么是AttributeError：＆＃39; NoneType＆＃39;对象没有属性＆＃39; tk＆＃39;意思？

1 个答案: