I am Python Novice , You have to write a simple GUI program , For the sake of simplicity , I choose to be in tkinter This is what we should do in the future .
What I want GUI It should be very similar to Windows Dialog boxes often encountered when installing programs on （ Where do you want to install , Modules you want, etc ）. Basically when it's in the python3.3 Run time in , I want a window to appear , Some of these options occupy most of the window , And then there's the ＆＃39;,＆＃39; return ＆＃39; and ＆＃39; cancel ＆＃39; Button at the bottom ; click “ next step ”＆＃39; Button , The current window is closed , Open a new window that looks the same , Except it has different options （ Or it could be the same window , But its content has been destroyed , I'm not sure which is better ）
. The rough layout I want is shown in this image
in
I've been looking around for code , The code is similar to this , But no code was found . I saw it this answer, But it's not what I want . I use this
tutorial To find out what I'm interested in tkinter Understanding of , But I can't find the answer in it .
It's a terrible attempt at a simplified version of what I want to do ： When I run the code , It creates a window with two buttons . ＆＃39;
Quit＆＃39; The button is working properly ; however , When I click “ next step ” Button to close the window and open a new window as needed , But it also opens another window .
from tkinter import *
from tkinter import ttk
def win1():
mainframe = ttk.Frame(root, padding = '3 3 12 12')
mainframe.grid(column = 0, row = 0, sticky = (N, W, E, S))
mainframe.columnconfigure(0, weight = 1)
mainframe.rowconfigure(0, weight = 1)
ttk.Button(mainframe, text = 'Next', command = win2).grid(
column = 1, row = 1, sticky = W)
ttk.Button(mainframe, text = 'Quit', command = quit).grid(
column = 1, row = 2, sticky = W)
root.mainloop()
def quit():
root.destroy()
def win2():
quit()
new = Toplevel()
new.title('Window 2')
new = ttk.Frame(root, padding = '3 3 12 12')
new.grid(column = 0, row = 0, sticky = (N, W, E, S))
new.columnconfigure(0, weight = 1)
new.rowconfigure(0, weight = 1)
ttk.Button(mainframe, text = 'Next', command = win2).grid(
column = 1, row = 1, sticky = W)
root = Tk()
win1()
The following error message appears （ I don't understand ）：
Exception in Tkinter callback
Traceback (most recent call last):
File "/usr/lib/python3.3/tkinter/__init__.py", line 1478, in __call__
return self.func(*args)
File "", line 23, in win2
File "/usr/lib/python3.3/tkinter/ttk.py", line 733, in __init__
Widget.__init__(self, master, "ttk::frame", kw)
File "/usr/lib/python3.3/tkinter/ttk.py", line 553, in __init__
tkinter.Widget.__init__(self, master, widgetname, kw=kw)
File "/usr/lib/python3.3/tkinter/__init__.py", line 2078, in __init__
(widgetName, self._w) + extra + self._options(cnf))
_tkinter.TclError: this isn't a Tk applicationNULL main window
Except for the fact that it didn't actually do what I wanted , I feel like I'm doing it in a completely wrong way （ Define windows, etc. in a function ）, And there will be a lot of problems when I want to make it more complicated . Can anyone rewrite my code in a better way , And in some way helped me build more complex programs , Provide resources to learn the programs I need , I want to even offer advice ? thank .
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