如何在Tkinter中设置按钮宽度（Python 3）

Question

我想在python 3中制作一个简单的测验程序，但我无法找到如何使按钮走完我想要的全部宽度。我正在使用python 3和TKinter模块来创建窗口和所有按钮。

from tkinter import * 

root = Tk() 

que_labl = Label(root, text='Question') 
choice1 = Button(root, text='Choice one') 
choice2 = Button(root, text='Choice one plus one') 
choice3 = Button(root, text='Choice 3') 
choice4 = Button(root, text='Choice eight divided by 2') 

que_labl.grid(row=0, columnspan=2) 
choice1.grid(row=2, column=0, sticky=W) 
choice2.grid(row=2, column=1, sticky=W) 
choice3.grid(row=3, column=0, sticky=W) 
choice4.grid(row=3, column=1, sticky=W) 

root.mainloop() 

的代码使一个窗口是这样的：

Answer 1

使用Grid.rowconfigure()，Grid.columnconfigure()和sticky=E+W。

from Tkinter import * 

root = Tk() 
#Configure line 0 and 1 
Grid.rowconfigure(root, 0, weight=1) 
Grid.rowconfigure(root, 1, weight=1) 

#Configure column 0 and 1 
Grid.columnconfigure(root, 0, weight=1) 
Grid.columnconfigure(root, 1, weight=1) 

que_labl = Label(root, text='Question') 
choice1 = Button(root, text='Choice one') 
choice2 = Button(root, text='Choice one plus one') 
choice3 = Button(root, text='Choice 3') 
choice4 = Button(root, text='Choice eight divided by 2') 

que_labl.grid(row=0, columnspan=2) 
choice1.grid(row=2, column=0, sticky=E+W) 
choice2.grid(row=2, column=1, sticky=E+W) 
choice3.grid(row=3, column=0, sticky=E+W) 
choice4.grid(row=3, column=1, sticky=E+W) 

root.mainloop()