python - 通过 EntryBoxes 向嵌套字典添加键和值，并通过 Combobox 访问它

Question

是否可以通过添加新的键和值Entrybox，然后立即访问它，Combobox同时确保新的key和valuesof被物理保存并在添加后sub-keys附加到右侧。dictionary当我print新添加key的一切似乎都很好，但其本身和values价值sub-keys没有变化。dict1Combobox

这是代码：

from tkinter import *
from tkinter.ttk import Combobox

def add():

    dict1[entrybox.get()] = {'name_company': entrybox1.get(), 'country_company': entrybox2.get()}
    print(dict1)

dict1 = {"": {"name_company": 0,
    "country_company" : 0,},

    "Company1": {"name_company": "Company1 LTD",
    "country_company": "Germany"}}

window =Tk()

var1=StringVar()

entrybox = Entry(window) #adding main key ("Company1") as an example
entrybox.pack()

entrybox1 = Entry(window) #adding value of sub-key ("name_company")
entrybox1.pack()

entrybox2 = Entry(window) #adding value of sub-key ("country_company")
entrybox2.pack()

combo = Combobox(window, value=list(dict1.keys()), textvariable=dict1[var1.get()])
combo.pack()

button = Button(window, text="Add", command=add)
button.pack()

标签： pythondictionarytkintercomboboxtkinter-entry

Answer 1

如果我正确理解了您的问题，我认为以下代码将为您提供所需的内容，或者让您接近最终目标。

原始词干的问题在于将条目值存储在某处，以便可以检索它们并将其用作组合框中的值，以及附加到字典中。

作为解决方法，我使用了两个 .txt 文件，一个用于存储 Combobox 的值，另一个用于存储字典，每次按下添加按钮时都会更新。

然后 Add 函数从 ComboValues.txt 文件中检索数据，将它们按字母顺序排序并将它们分配给 Combobox。我并不是说这是最佳实践，但它应该满足您的要求。

在旁注中，我提供的一个提示是在导入模块时避免使用 *。它最终可能会变得一团糟，试着只导入你需要的东西，例如。Combobox、Stringvar、Entry ......等。

希望这会有所帮助，任何问题或澄清都会打我。

import os
from tkinter import Entry, StringVar, Tk, Button
from tkinter.ttk import Combobox

Root = Tk()
#set combobox values to empty list
ComboboxValue = []

#String variables for dictionary values
MainKey = StringVar()
SubKey1 = StringVar()
Subkey2 = StringVar()

#Set dictionary values to open list
Dict = {}

#A place to save dictionary key values to read from later
file = open('Combovalues.txt', 'a')

#defining the function for adding entry values to dictionary
def Add():

#Second dictionary used to update original
    DictUpdated = {MainKey.get():{'name_company':SubKey1.get(), 'country_company':Subkey2.get()}}

#Method to update original dictionary
    Dict.update(DictUpdated)

    print(Dict)

#function to update combobox txt file with entry values
    with open('ComboValues.txt', 'a') as file:
        file.write('\n'+(str(SubKey1.get())+'\n'+(str(Subkey2.get()))))
        file.close

#function to update Dictionary txt file with entry values        
    with open('Dictionary.txt', 'a') as file:
        file.write('\n'+str((Dict)))
        file.close

#function to sort through entry values saved to combobox txt file, ready for assigning to combobox
def ValueSource():
    with open('ComboValues.txt') as inFile:
        ComboboxValue = [line for line in inFile]
        ComboboxValue = sorted(ComboboxValue)
        return ComboboxValue

#Function to retrieve values from combo txt file and assigned to combobox
def GetUpdatedValues():
    Values = ValueSource()
    Root.Combobox['values'] = Values

#Class to build GUI   
class GUI ():
    def __init__(self, master):
        self.master = master
        master.EntryMainKey = Entry(Root, textvariable= MainKey).grid(row=0, columnspan=2)
        master.EntrySubKey1 = Entry(Root, textvariable= SubKey1).grid(row=1, columnspan=2)
        master.EntrySubKey2 = Entry(Root, textvariable= Subkey2).grid(row=2, columnspan=2)
        master.AddButton = Button(Root, text='Add', command=Add).grid(row=3, columnspan=2)
        master.Combobox = Combobox(Root, state='normal', postcommand=GetUpdatedValues)
        master.Combobox['values'] = ComboboxValue
        master.Combobox.grid(row=4, columnspan=2)

#Mainloop function    
def main():
    GUI(Root)
    Root.mainloop()

main()