原本只有使用英文的介面來設計GUI，遇到完成按鈕的處理後，需要顯示提示訊息，但每次都重新到畫面中取得目前操作中的語言，似乎有點太慢，所以希望在按下button 時，順便把操作時的語系代碼傳入給 command.
使用前：
btna = Button(root, text = 'ButtonA', command = my_command)
使用後：
def btn_restore_defaults_clicked(language_code):
...
btn_restore_defaults = ttk.Button(frame_action, text=translate[language_code]['restore_defaults'], command= lambda: btn_restore_defaults_clicked(language_code))
使用起來，很簡單，加一個 lambda: 就結束了。
資料來源：
https://stackoverflow.com/questions/6920302/how-to-pass-arguments-to-a-button-command-in-tkinter
I personally prefer to use lambdas in such a scenario, because imo it’s clearer and simpler and also doesn’t force you to write lots of wrapper methods if you don’t have control over the called method, but that’s certainly a matter of taste.
That’s how you’d do it with a lambda (note there’s also some implementation of currying in the functional module, so you can use that too):
button = Tk.Button(master=frame, text='press', command= lambda: action(someNumber))