Methods of Python Tkinter Menu widget
Table of Contents
Methods of Python Tkinter Menu widget
These are just some of the methods available for Tkinter menus. You can use these methods to create, modify, and manipulate menus in your Tkinter applications
Here are some examples of using the methods available for Tkinter menus:
add_cascade(label, **options):
Adds a new sub-menu to the menu.
Example:
import tkinter as tk
def do_something():
print("Doing something...")
root = tk.Tk()
menu = tk.Menu(root)
submenu = tk.Menu(menu, tearoff=0)
submenu.add_command(label="Suboption 1", command=do_something)
submenu.add_command(label="Suboption 2", command=do_something)
menu.add_cascade(label="Options", menu=submenu)
root.config(menu=menu)
root.mainloop()
add_command(label, **options):
Adds a new menu item to the menu.
Example:
import tkinter as tk
def save_file():
print("Saving file...")
root = tk.Tk()
menu = tk.Menu(root)
menu.add_command(label="Save", command=save_file)
root.config(menu=menu)
root.mainloop()
add_radiobutton(label, **options):
Adds a new radio button to the menu.
root = tk.Tk()
var = tk.StringVar()
var.set("Option 1")
menu = tk.Menu(root)
menu.add_radiobutton(label="Option 1", variable=var, value=1)
menu.add_radiobutton(label="Option 2", variable=var, value=2)
root.config(menu=menu)
root.mainloop()
add_separator():
Adds a separator line to the menu.
import tkinter as tk root = tk.Tk() menu = tk.Menu(root) menu.add_command(label="Option 1") menu.add_separator() menu.add_command(label="Option 2") root.config(menu=menu) root.mainloop()
delete(index):
Deletes the menu item at the specified index.
import tkinter as tk root = tk.Tk() menu = tk.Menu(root) menu.add_command(label="Option 1") menu.add_command(label="Option 2") menu.add_command(label="Option 3") menu.delete(1) root.config(menu=menu) root.mainloop()
entryconfig(index, **options):
Configures the menu item at the specified index.
import tkinter as tk root = tk.Tk() menu = tk.Menu(root) menu.add_command(label="Option 1") menu.add_command(label="Option 2") menu.add_command(label="Option 3") menu.entryconfig(1, state="disabled") root.config(menu=menu) root.mainloop()
index(index):
Returns the index of the menu item with the specified label.
import tkinter as tk
root = tk.Tk()
menu = tk.Menu(root)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")
index = menu.index("Option 2")
print(index)
root.config(menu=menu)
root.mainloop()
invoke(index):
Invokes the menu item at the specified index.
import tkinter as tk
def do_something():
print("Doing something...")
root = tk.Tk()
menu = tk.Menu(root)
menu.add_command(label="Option 1", command=do_something)
menu.add_command(label="Option 2", command=do_something)
menu.invoke(1)
root.config(menu=menu)
root.mainloop()
type(index):
Returns the type of the menu item at the specified index (one of “cascade”, “command”, “separator”, “radiobutton”, or “checkbutton”).
import tkinter as tk root = tk.Tk() menu = tk.Menu(root) menu.add_command(label="Option 1") menu.add_radiobutton(label="Option 2", variable=tk.IntVar(), value=1) menu.add_separator() menu.add_checkbutton(label="Option 3", variable=tk.BooleanVar()) type = menu.type(2) print(type) root.config(menu=menu) root.mainloop()
How to create a simple text editor?
This application is a simple text editor that allows the user to open and save text files, as well as edit the text in the editor.
import tkinter as tk
from tkinter import filedialog
class TextEditor:
def __init__(self, master):
self.master = master
self.master.title("Text Editor")
self.text_area = tk.Text(self.master, height=30, width=80)
self.text_area.pack()
self.menu = tk.Menu(self.master)
self.master.config(menu=self.menu)
self.file_menu = tk.Menu(self.menu)
self.menu.add_cascade(label="File", menu=self.file_menu)
self.file_menu.add_command(label="New", command=self.new_file)
self.file_menu.add_command(label="Open", command=self.open_file)
self.file_menu.add_command(label="Save", command=self.save_file)
self.file_menu.add_separator()
self.file_menu.add_command(label="Exit", command=self.master.quit)
def new_file(self):
self.text_area.delete(1.0, tk.END)
def open_file(self):
file_path = filedialog.askopenfilename()
if file_path:
with open(file_path, "r") as f:
file_contents = f.read()
self.text_area.delete(1.0, tk.END)
self.text_area.insert(tk.END, file_contents)
def save_file(self):
file_path = filedialog.asksaveasfilename()
if file_path:
with open(file_path, "w") as f:
file_contents = self.text_area.get(1.0, tk.END)
f.write(file_contents)
root = tk.Tk()
app = TextEditor(root)
root.mainloop()
This code creates a simple text editor with a menu that allows the user to create a new file, open an existing file, save the current file, and exit the application. When the user selects the “Open” or “Save” options from the menu, a file dialog is displayed to allow the user to choose the file to open or save. The contents of the selected file are displayed in the text editor, and the user can modify the contents and save them back to the file using the “Save” option.
Multiple choice quiz about tkinter menu with answers
1-What is Tkinter?
- A Python library for creating graphical user interfaces
- A Python library for data analysis
- A Python library for machine learning
- A Python library for web development
Answer: A
2-What are the different types of menus that can be created in Tkinter?
- Top-level, pull-up, pop-out, and toggle menus
- Top-level, pull-down, pop-up, and tear-off menus
- Top-down, pull-out, pop-in, and radio menus
- Top-down, pull-up, pop-out, and cascading menus
Answer: B
3-How do you create a top-level menu in Tkinter?
- By using the add_cascade() method
- By using the add_command() method
- By using the add_radiobutton() method
- By using the add_checkbutton() method
Answer: A
4-How do you create a pull-down menu in Tkinter?
- By using the add_cascade() method
- By using the add_command() method
- By using the add_radiobutton() method
- By using the add_checkbutton() method
Answer: A
5-How do you create a pop-up menu in Tkinter?
- By using the add_cascade() method
- By using the add_command() method
- By using the add_radiobutton() method
- By using the post() method
Answer: D
6-How do you create a tear-off menu in Tkinter?
- By setting the tearoff attribute of the menu to True
- By using the post() method
- By using the add_cascade() method
- By using the add_separator() method
Answer: A
7-How do you create a menubutton in Tkinter?
- By using the Menubutton() function
- By using the Button() function
- By using the Label() function
- By using the Entry() function
Answer: A
8-How do you create an option menu in Tkinter?
- By using the OptionMenu() function
- By using the Menubutton() function
- By using the Button() function
- By using the Label() function
Answer: A
9-How do you add an item to a menu in Tkinter?
- By using the add_item() method
- By using the insert_item() method
- By using the add_cascade() method
- By using the add_command() method
Answer: D
10-How do you invoke a menu item in Tkinter?
- By using the invoke() method
- By using the post() method
- By using the bind() method
- By using the get() method
Answer: A
11-What is the difference between a top-level menu and a pull-down menu in Tkinter?
- A top-level menu is always visible on the screen, while a pull-down menu only appears when the user clicks on a button or widget
- A top-level menu is a menu that appears at the top of the screen, while a pull-down menu is a menu that appears below a button or widget
- There is no difference between a top-level menu and a pull-down menu in Tkinter
- A top-level menu is a menu that appears when the user clicks on a button or widget, while a pull-down menu is always visible on the screen
Answer: B
12-What is the purpose of the tearoff attribute in Tkinter menus?
- It determines whether a menu item is enabled or disabled
- It specifies the position of a menu item in the menu
- It allows the user to detach a menu from the main window and use it as a separate window
- It specifies the label that appears on a menu item
Answer: C
13-How do you create a separator in a Tkinter menu?
- By using the add_separator() method
- By using the add_cascade() method
- By using the add_command() method
- By using the add_radiobutton() method
Answer: A
14-How do you retrieve the type of a menu item in Tkinter?
- By using the get_type() method
- By using the type() function
- By using the item_type() method
- By using the entry_type() method
Answer: D
15-What is the purpose of the invoke() method in Tkinter menus?
- It adds a new item to the menu
- It removes an item from the menu
- It performs the action associated with a menu item
- It changes the label of a menu item
Answer: C
16-How do you add a keyboard shortcut to a menu item in Tkinter?
- By setting the accelerator attribute of the menu item
- By using the bind() method with a keyboard event and the menu item
- By using the add_separator() method
- By using the add_radiobutton() method
Answer: A
17-How do you create a cascading menu in Tkinter?
- By using the add_cascade() method
- By using the add_separator() method
- By using the add_command() method
- By using the add_radiobutton() method
Answer: A
18-What is the purpose of the activebackground attribute in Tkinter menus?
- It specifies the background color of the menu item when it is selected
- It specifies the background color of the menu item when the mouse is over it
- It specifies the background color of the menu item when it is disabled
- It specifies the background color of the menu item when it is enabled
Answer: B
19-How do you create a menu button in Tkinter?
- By using the OptionMenu() method
- By using the Menubutton() method
- By using the Menu() method
- By using the Button() method
Answer: B
20-How do you remove a menu item from a Tkinter menu?
- By using the delete() method with the index of the item to be removed
- By using the remove() method with the label of the item to be removed
- By using the pop() method with the index of the item to be removed
- By using the discard() method with the label of the item to be removed
Answer: A