Python：从单独的文件加载UI

Question

G'day All,

I'm using tkinter for my GUI. Currently when I write an app most of the code is the interface widgets. I know how to import a file of defined functions and use them and I want to be able to "import" the UI. That way I can reuse the UI file and declutter the main app.

The conceptual hurdle I'm facing is that if I declare a window:

main = Tk()

how do I then populate "main" from another module?

Thanks, A.

Answer 1

you could pass it as a parameter like import my_gui; my_gui.create(main) import my_gui; my_gui.create(main) ; but for most situations I would recommend working the other way round -- have the GUI file be the file that you execute, and it imports the number-crunching functions from your core-functionality library

Answer 2

My recommendation is to not do main=Tk() . Instead, have your UI inherit from Tk. For example:

# in ui.py
import Tkinter as tk
class MyApp(tk.Tk):
    def __init__(self, *args, **kwargs):
        ...

# in main.py
import ui
def main():
    main = ui.MyApp()
    main.mainloop()

If you don't like inheriting from tk.Tk , your other option is to create your main window and then pass it as an argument to whatever code you have that creates the GUI. For example:

# ui.py
def CreateUI(root)
    ...

# main.py
import ui
def main():
    root = tk.Tk()
    ui.CreateUI(root)