無法獲得LabelFrame小工具來顯示對TTK筆記本（蟒蛇3.5.1）

Question

我有其中TTK筆記本的選項卡上（Tkinter的）LabelFrame部件將不進行自我更新的應用程序。在該程序的一個簡化版本（下面的代碼摘錄）中，小部件甚至不會出現在GUI上。

一切都在GUI上其他正常工作，包括更新標籤的標題，應用程序標題（和圖標），並更新標籤，Checkbutton和單選框部件上的所有筆記本選項卡。使用ttk版本（例如ttk.LabelFrame）創建這些小部件並不能解決問題。在更新小部件屬性後沒有成功，我也嘗試使用「update_idletasks」（有些人認爲這是一個kludge）。

在實際應用中，所有GUI小部件的文本根據同一GUI上的「選擇語言」小部件的狀態而變化（有關詳細信息，請參閱：Need Python/tkinter GUI to dynamically update itself (for a multi-lingual GUI)）。衆所周知，包括缺失的LabelFrame在內的所有GUI文本值（WidgetName [「text」]屬性）正在被正確更新以匹配該窗口小部件的狀態。

關於Notebook上的LabelFrame窗口小部件有什麼「特殊」 ？標籤是什麼（可能是簡單）的事情我俯瞰
此外，任何確認/拒絕別人將有助於確定問題是否是唯一的我的系統 - 一個獨特的方法可行，因爲我的機器是由企業IM管理（誰不有不尋常的處理用戶的需求時，像我）的最佳戰績。

感謝

---

以下是這個問題的一個完整的例子。運行時，LabelFrame小部件（應出現在Tab 1的（0，0））不會出現。點擊「語言」小部件會導致其他所有內容以「語言」小部件所選語言顯示文本。

從「LanguageInUse.py」切換語言的代碼：

import sys 

c_cedille_lower = "\u00E7" # UTF 8/16 (code page 863?) French character 
e_circumflex_lower = "\u00EA" 

English = 'English'       # string shown on GUI 
Francais = 'Fran' + c_cedille_lower + 'ais' # string shown on GUI 

DefaultLanguage = Francais 
DefaultLanguage = English  # comment out this line to use French 

user_language = DefaultLanguage  # set up language shown on GUI 

# Define all language-dependent GUI strings (as "Application-Level" globals) 

ComplianceMessage = None 
ReportTab1Title  = None 
ReportTab2Title  = None 
XCheckbuttonMessage = None 
XLabelFrameMessage = None 
XLabelMessage  = None 
XRadioButtonMessage = None 

'''==========================================================================''' 

def SetGuiLanguage(user_language) : 

    global ComplianceMessage, LanguagePrompt   
    global ReportTab1Title, ReportTab2Title 
    global XLabelFrameMessage, XCheckbuttonMessage, XLabelMessage, XRadioButtonMessage 

    if (user_language == English):  
     LanguagePrompt  = "Language" 
     ReportTab1Title  = "Message Counts" 
     ReportTab2Title  = "Communications Compliance" 
     XLabelFrameMessage = "LabelFrame" 
     XCheckbuttonMessage = "Checkbox" 
     XLabelMessage  = "Label" 
     XRadioButtonMessage = 'Radiobutton' 
     ComplianceMessage = "Compliance (engish)"   
    elif (user_language == Francais):  
     LanguagePrompt  = "Langage" 
     ReportTab1Title = "Comtes de message" 
     ReportTab2Title = "Compliance Communications" 
     XLabelFrameMessage = "LabelFrame en " + Francais 
     XCheckbuttonMessage = "Checkbox en " + Francais 
     XLabelMessage  = "Label en "  + Francais 
     XRadioButtonMessage = "Radiobutton en " + Francais 
     ComplianceMessage = "Compliance - " + Francais   
    else: 
     print (' An unknown user language was specified') 
     sys.exit() 

    return 

'''==========================================================================''' 

SetGuiLanguage(user_language)  # initialize all tkinter strings at startup 

'''========================== End of File ================================''' 

從「SelectReports.py」）的構建筆記本的代碼：

from tkinter import Checkbutton, Radiobutton, Label, LabelFrame, Frame 
from tkinter import ttk 

import LanguageInUse 

# Locally defined entities importable by other modules (often 
# Tkinter Application level objects whose language can be changed) 

ComplianceMessageText = None 
NotebookFrame   = None 

XCheckbutton = None 
XLabel  = None 
XLabelFrame = None # NOT APPEARING ON THE GUI 
XRadiobutton = None 

'''==========================================================================''' 

def TabbedReports(ParentFrame) : 

    global ComplianceMessageText, NotebookFrame 
    global SelectReportFrame, UplinkFileWarningText 
    global XCheckbutton, XLabel, XLabelFrame, XRadiobutton 

    # Builds the notebook and it's widgits 

    NotebookFrame = ttk.Notebook(ParentFrame) 
    NotebookFrame.grid(row = 0, column = 1) 

    Tab1Frame = Frame(NotebookFrame) 
    Tab2Frame = Frame(NotebookFrame) 

    NotebookFrame.add(Tab1Frame) 
    NotebookFrame.add(Tab2Frame) 

    # Create widgets on Tab 1 

    XLabelFrame = LabelFrame( Tab1Frame) # NOT APPEARING ON GUI 
    XCheckbutton = Checkbutton(Tab1Frame) 
    XLabel  = Label(  Tab1Frame) 
    XRadiobutton = Radiobutton(Tab1Frame) 

    XLabelFrame.grid( row = 1, column = 0) # NOT ON GUI 
    XCheckbutton.grid(row = 1, column = 1)  
    XLabel.grid(  row = 2, column = 0) 
    XRadiobutton.grid(row = 2, column = 1) 

    XLabelFrame.configure( text = LanguageInUse.XLabelFrameMessage) # NOT ON GUI 
    XCheckbutton.configure(text = LanguageInUse.XCheckbuttonMessage) 
    XLabel.configure(  text = LanguageInUse.XLabelMessage) 
    XRadiobutton.configure(text = LanguageInUse.XRadioButtonMessage) 

    # .tab() gives same effect as .configure() for other widget types 

    NotebookFrame.tab(0 , text = LanguageInUse.ReportTab1Title) 
    NotebookFrame.tab(1 , text = LanguageInUse.ReportTab2Title) 

    # Create the only widget on Tab 2 (uses other method to specify text) 

    ComplianceMessageText = Label(Tab2Frame) 
    ComplianceMessageText.grid( row = 0, column = 0)  
    ComplianceMessageText['text'] = LanguageInUse.ComplianceMessage 

    return 

從「ChangeLanguageOnGui.py」更新所有筆記本小部件的代碼：

import sys, os 
from tkinter import StringVar, Radiobutton, PhotoImage 

#from TkinterRoot import root 

import LanguageInUse 
import SelectReports 

'''==========================================================================''' 

def ChangeLanguageOnGui() :  

    SelectReports.XLabelFrame.configure( text = LanguageInUse.XLabelFrameMessage) # NOT ON GUI 
    SelectReports.XCheckbutton.configure(text = LanguageInUse.XCheckbuttonMessage) 
    SelectReports.XLabel.configure(  text = LanguageInUse.XLabelMessage) 
    SelectReports.XRadiobutton.configure(text = LanguageInUse.XRadioButtonMessage) 

    # .tab() gives the same effect as .configure() for other widget types 

    SelectReports.NotebookFrame.tab(0 , text = LanguageInUse.ReportTab1Title) 
    SelectReports.NotebookFrame.tab(1 , text = LanguageInUse.ReportTab2Title) 

    SelectReports.ComplianceMessageText['text'] = LanguageInUse.ComplianceMessage 

'''==========================================================================''' 

def SetUpGuiLanguage(LanguageFrame) : 

    GUI_Language = StringVar(value = LanguageInUse.user_language) 

    #--------------------------------------------------------------------------- 
    def switchLanguage(): 

     LanguageInUse.user_language = GUI_Language.get()     
     LanguageInUse.SetGuiLanguage(LanguageInUse.user_language) 

     ChangeLanguageOnGui() 

     return 

    #--------------------------------------------------------------------------- 

    UsingEnglish = Radiobutton(LanguageFrame, indicatoron = False, 
           variable = GUI_Language, 
           command = lambda: switchLanguage(), 
           value = LanguageInUse.English) 
    UsingFrancais = Radiobutton(LanguageFrame, indicatoron = False, 
           variable = GUI_Language, 
           command = lambda: switchLanguage(), 
           value = LanguageInUse.Francais)  
    UsingEnglish.grid( row = 0, column = 0)  
    UsingFrancais.grid(row = 1, column = 0) 

    UsingEnglish.configure( text = LanguageInUse.English) 
    UsingFrancais.configure(text = LanguageInUse.Francais)  

從「TkinterRoot.py」代碼，使根可導入到處（顯式地導入此避免問題，如IntVar（）中的其它模塊的intitialization相是不可用）：

from tkinter import Tk # possibly the worlds shortest useful python module 

root = Tk()    # makes root an importable "Application Level" global 

最後「A.py」，主線的文件：

from TkinterRoot import root 

from tkinter import LabelFrame 
from tkinter import ttk 

import ChangeLanguageOnGui, LanguageInUse, SelectReports, sys 

LanguageFrame  = None 

if __name__ == "__main__": 

    LanguageChoice = LanguageInUse.English 

    if (LanguageChoice == LanguageInUse.English) : 
     LanguageInUse.user_language = LanguageChoice 
    elif (LanguageChoice == 'Francais') : 
     LanguageInUse.user_language = LanguageInUse.Francais 
    else : 
     print("Unknown Language: " + LanguageChoice ) 
     sys.exit() 

    mainframe = ttk.Frame(root) 
    mainframe.grid(row = 0, column = 0) 

    LanguageFrame = LabelFrame(mainframe, text = LanguageInUse.LanguagePrompt) 
    LanguageFrame.grid(row = 0, column = 0) 

    ChangeLanguageOnGui.SetUpGuiLanguage(LanguageFrame) 

    SelectReports.TabbedReports(mainframe) 

    try: 
     root.mainloop()  
    except: 
     print('Exception Occurred')   

sys.exit() 

環境是64位Python 3.5.1,64位Win 7 Enterprise SP 1，64位Eclipse Mars 2（Java EE IDE版），運行64位PyDev 5.1.2.201606231256。使用了Pydev的「一個用戶」（沒有管理權限）版本，這需要微軟補丁KB2999226（Win10的一部分）在Win7上運行。最終目標分佈是32位Windows應用程序（因此它可以在32個& 64位Windows運行） - 並且如果/當時間允許 - Linux操作系統。

有一個輕微的併發症要記住：在實際的程序正在使用的幾個包。在每個包中，每個函數都在其自己的文件內部被隔離。所有對象（例如tkinter小部件）必須在外部可見（或需要在包的文件中共享）在包的_ _ init.py _ _文件中聲明。必須在外部可見的函數通過使用相對導入（例如「from .Function1 import Function1」）顯式導入_ _ init.py _ _。

Answer 1

由於您將LabelFrame放置在一個框架中，而不是直接放在Notebook選項卡上，因此您的標題具有誤導性。你的問題是labelframe不會出現在它的父框架中。筆記本無關緊要，所有相關的代碼應該在發佈之前被刪除。

即使這個框架是無關緊要的，因爲將labelframe直接放入根目錄時會出現同樣的問題。這裏是展示問題和解決方案的最小代碼。

from tkinter import Tk 
from tkinter import ttk 

root = Tk() 
lf1 = ttk.LabelFrame(root, text='labelframe 1') 
lf2 = ttk.LabelFrame(root, text='labelframe 2', width=200, height=100) 
lf1.pack() 
lf2.pack() 

我在Win 10上運行了3.6a2，它帶有tk 8.6.4。只有lf2是可見的，因爲labelframe的默認大小（如框架）爲0 x 0。非默認大小來自明確尺寸或內容。有點令人驚訝的是，該標籤不算作內容，並且不會強制使用非默認尺寸。我在一個框架（你的情況）和一個選項卡上再現了同樣的結果。