获取“AttributeError: 'CalibrationWindow' 对象没有属性 'settings'”

问题描述

目标：显示具有给定标题和几何形状的 CalibrationWindow，并填充有标签、输入字段、3 个缩放小部件和 2 个按钮，同时通过 ssh -Y 连接。

预期结果：参见上面的目标。

实际结果：未出现校准设置窗口。终端窗口显示“AttributeError: 'CalibrationWindow' 对象没有属性 'settings'。”

我的代码有两个独立的 SettingsWindow 子类，它们都遇到了这个问题。我在这里只包括了其中之一。不知何故，子类无法找到实例属性“设置”。我还尝试使用 @property 进行 getter 和 setter 设置，但这并不能解决错误。 我通过 ssh 运行它，当我只调用 Window() 时，它会按预期打开空窗口。当我调用 SettingsWindow()

import pickle
from tkinter import *
import tkinter.font as tkFont
import sys
import os

settings_filepath = "myapp.conf"
calibrationWindowTitle = "Calibration Settings"
calibrationWindowGeometry = "220x180"

class Settings:
  def __init__(self):
    self.dirty = False
    self.Load()
  def LoadDefaults(self):
    self.dirty = True
    self.data = SettingsData("Default Settings")
  def Load(self):
    if os.path.exists(settings_filepath):
      try:
        with open(settings_filepath,'rb') as f:
          self.data = pickle.load(f)
      except:
        print('Couldn\'t open settings file. Using defaults instead.')
        self.LoadDefaults()
    else:
      self.LoadDefaults()
  def Update(self,newData):
    self.data = newData
    self.dirty = True
  def Save(self):
    if self.dirty:
      try:
        with open(settings_filepath,'wb') as f:
          pickle.dump(self.data,f,pickle.HIGHEST_PROTOCOL)
      except:
        print('Couldn\'t save settings. Try again or accept defaults.')
        
class Window(object):
  def __init__(self,title,geometry):
    self.window = Tk()
    self.font = tkFont.Font(root=self.window,family= 'Helvetica',size = 12,weight = 'bold')
    self.window.title = title # No visible effect.
    self.window.geometry = geometry # No visible effect.
    self.AddControls()
    self.Show()
  def AddControls(self):
    # Child classes must override this method.
    pass
  def Show(self):
    # Child clsss must override this method to insert ".pack()" calls for each control before calling super().Show().
    self.window.mainloop()
  def Save(self):
    # Child classes must override this method if they have anything that needs saving.
    self.Close()
  def Close(self):
    # Child classes must override this method if they have anything that needs deallocation.
    self.window.destroy()

class SettingsWindow(Window):
  def __init__(self,geometry):
    super().__init__(title,geometry)
    self.settings = Settings()
  def Save(self):
    self.settings.Save()
    
class CalibrationWindow(SettingsWindow):
  def __init__(self,geometry,unitIndex):
    super().__init__(title,geometry)
    self.unitIndex = unitIndex
  def AddControls(self):
    calib = self.settings.calibrations[self.unitIndex]
    ### WIDGETS ###
    self.myLabel = Label(self.window,text="Name:")
    self.myLabel.grid(row=0,column=0)
    self.myField = Entry(self.window,width=50,variable=self.settings.calibrations[self.unitIndex].unitName,command=self.UnitNameChanged())
    self.myField.grid(row=0,column=2)
    self.minSlider = Scale(self.window,label='Minimum',font=self.font,bg='bisque2',height=1,length=200,cursor='Hand',from_=0,to=100,command=self.SettingsChanged()) 
    self.minSlider.grid(row=1,column=1)
    self.centerSlider = Scale(self.window,label='Center',command=self.SettingsChanged())
    self.centerSlider.grid(row=2,column=1)
    self.maxSlider = Scale(self.window,label='Maximum',command=self.SettingsChanged())
    self.maxSlider.grid(row=3,column=1)
    self.cancelButton = Button (self.window,text='Cancel',bg='red',width=6,command=self.Cancel())
    self.cancelButton.grid(row=4,column=2)
    self.exitButton = Button (self.window,text='Save',bg='green',command=self.Close())
    self.exitButton.grid(row=4,column=3)
    self.myLabel.pack()
    self.myField.pack()
    self.minSlider.pack(anchor=center)
    self.centerSlider.pack(anchor=center)
    self.maxSlider.pack(anchor=center)
    self.cancelButton.pack()
    self.saveButton.pack()
    super().Show()
  def UnitNameChanged(self):
    self.dirty = true
  def SettingsChanged(self):
    self.dirty = true

#Test calibrations window:
CalibrationsWindow(calibrationWindowTitle,calibrationWindowGeometry)

我在这里错过了什么？

解决方法

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