我正在创建词汇表,一个用于管理未知单词的GUI程序。我得到:
/usr/bin/python3.5/home/cali/PycharmProjects/Vocabulary/Vocabulary.py Tkinter 回调回溯中的异常(最近一次调用(:
文件 "/usr/lib/python3.5/tkinter/init.py",第 1553 行,在调用中 return self.func(*args( File "/home/cali/PycharmProjects/Vocabulary/Vocabulary.py", 第 86 行, in add_item self.listBox.insert(END, self.get_word((( AttributeError: 'Vocabulary' 对象没有属性 'listBox'进程已完成,退出代码为 0
。当我尝试将项目添加到列表框时。
这是我所做的:
#!/usr/bin/env python
# Vocabulary.py
# GUI program to manage unknown words
from tkinter import *
class Word:
def __init__(self, wordorphrase, explanation, translation, example):
self.wordorphrase = wordorphrase
self.explanation = explanation
self.translation = translation
self.example = example
class Vocabulary(Frame):
def __init__(self, master):
Frame.__init__(self, master)
self.master = master
self.master.resizable(width = False, height = False)
self.master.title("Vocabulary")
self.create_widgets()
def create_widgets(self):
lblWordsOrPhrases = Label(self.master, text = 'Words or Phrases:')
lblWordsOrPhrases.grid(row = 0, column = 0)
lblWordOrPhrase = Label(self.master, text = 'Word or phrase:')
lblWordOrPhrase.grid(row = 0, column = 1, sticky = W)
listBox = Listbox(self.master,
height = 34,
width = 30)
listBox.grid(row = 1, column = 0, rowspan = 7)
txt_WordOrPhrase = Text(self.master,
height = 1,
width = 40)
txt_WordOrPhrase.grid(row = 1, column = 1, sticky = N)
lblExplanation = Label(self.master, text = 'Explanation:')
lblExplanation.grid(row = 2, column = 1, sticky = W)
txt_Explanation = Text(self.master,
height = 10,
width = 40)
txt_Explanation.grid(row = 3, column = 1, sticky = N)
lblTranslation = Label(self.master, text = 'Translation:')
lblTranslation.grid(row = 4, column = 1, sticky = W)
txt_Explanation = Text(self.master,
height = 10,
width = 40)
txt_Explanation.grid(row = 5, column = 1, sticky = N)
lblExamples = Label(self.master, text = 'Example(s):')
lblExamples.grid(row = 6, column = 1, sticky = W)
txt_Explanation = Text(self.master,
height = 10,
width = 40)
txt_Explanation.grid(row = 7, column = 1, sticky = S)
btn_Add = Button(self.master,
text = 'Add',
command = self.add_item)
btn_Add.grid(row = 8, column = 0, sticky = W)
def get_word(self):
return self.txt_WordOrPhrase.get('1.0', '1.0 lineend')
def get_explanation(self):
return self.txt_Explanation.get('1.0', '1.0 lineend')
def get_translation(self):
return self.txt_Translation.get('1.0', '1.0 lineend')
def get_example(self):
return self.txt_Example.get('1.0', '1.0 lineend')
def add_item(self):
self.listBox.insert(END, self.get_word())
def main():
root = Tk()
Vocabulary(root)
root.mainloop()
if __name__ == '__main__':
main()
我正在使用Python 3.5。
你listbox
是create_widgets
的局部变量,因为它没有设置self
。为了使变量在实例范围内可用,您需要将其包含在 self
中。
将create_widgets
中的行更改为self.listBox = Listbox(self.master, height = 34, width = 30)
,并将每个对listBox
引用更改为self.listBox
以应用此更改。
您可能希望在 __init__()
中定义self.listBox
,因为它可能有助于跟踪实例变量。