Python Tkinter Menubutton Widget

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Python Tkinter Menubutton Widget

Tkinter Menubutton is a widget in the Tkinter library for Python that provides a drop-down menu when clicked. It is a combination of a button and a menu. When the button is clicked, a menu is displayed with a list of options to choose from.

How to create Tkinter Menubutton Widget

Syntax to create Tkinter Menubutton:

The syntax to create a Tkinter Menubutton is as follows:

menubutton = tk.Menubutton(parent, options, ...)

Here, tk is the Tkinter module, Menubutton is the class for creating Menubutton widgets, parent is the parent widget to which the Menubutton belongs, and options are the various configuration options that can be set for the Menubutton.

After creating the Menubutton, you can attach a menu to it using the menu method:

menubutton.menu = tk.Menu(menubutton, options, ...)

Here, menu is a method of the Menubutton widget that creates a new Menu widget and attaches it to the Menubutton. You can set the configuration options for the Menu widget in the same way as for the Menubutton. Once you have created the Menu widget, you can add options to it using the add_command method:

menubutton.menu.add_command(label="Option 1", command=my_function)

Here, add_command is a method of the Menu widget that adds a new option to the menu. The label parameter sets the label text for the option, and the command parameter sets the function that will be called when the option is selected.

The options of Tkinter Menubutton

Here is a list of all the configuration options that can be set for a Tkinter Menubutton widget:

activebackground: The background color when the Menubutton is under the mouse or the active option
activeforeground: The foreground color when the Menubutton is under the mouse or the active option
anchor: The anchor position of the text within the Menubutton. It can be “center”, “n”, “ne”, “e”, “se”, “s”, “sw”, “w”, “nw”
bg or background: The background color of the Menubutton
bitmap: A bitmap to be displayed on the Menubutton
borderwidth or bd: The border width of the Menubutton
compound: If both image and text are specified, this option controls the relative position of the image and text. It can be “center”, “n”, “ne”, “e”, “se”, “s”, “sw”, “w”, “nw”
cursor: The mouse pointer shape when it is over the Menubutton
direction: The direction of the menu. It can be “above”, “below”, “left”, “right”
disabledforeground: The foreground color when the Menubutton is disabled
font: The font used for the text in the Menubutton
foreground or fg: The foreground color of the Menubutton
height: The height of the Menubutton
highlightbackground: The color of the focus highlight when the Menubutton does not have focus
highlightcolor: The color of the focus highlight when the Menubutton has focus
highlightthickness: The thickness of the focus highlight
image: An image to be displayed on the Menubutton
indicatoron: If True, the Menubutton will display an indicator to the left of the text to show that it is a Menubutton
justify: The alignment of the text within the Menubutton. It can be “left”, “right”, or “center”
menu: The menu associated with the Menubutton
padx: The padding in the x-direction
pady: The padding in the y-direction
relief: The border style of the Menubutton. It can be “flat”, “groove”, “raised”, “ridge”, “solid”, or “sunken”
state: The state of the Menubutton. It can be “normal”, “active”, or “disabled”
takefocus: If True, the Menubutton can receive focus
text: The text displayed on the Menubutton
textvariable: A variable that holds the text displayed on the Menubutton
underline: The index of the character in the text that should be underlined
width: The width of the Menubutton
wraplength: The maximum length of a line of text before it wraps to the next line.

These options can be set when creating a new Menubutton, or later using the configure method of the Menubutton widget.

For example:

menubutton = tk.Menubutton(parent, text="Menu", bg="blue")
menubutton.configure(text="New Menu", fg="white")

The `activebackground` option of a Tkinter Menubutton widget

It sets the background color to be used when the mouse cursor is over the Menubutton or when the Menubutton’s associated menu is active.

The value of activebackground can be specified as a color name (e.g. “red”), a hexadecimal value (e.g. “#FF0000”), an RGB tuple (e.g. (255, 0, 0)), or an RGBA tuple (e.g. (255, 0, 0, 128)).

Here’s an example of how to create a Menubutton with a custom active background color:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, activebackground="green")
menubutton.pack()

root.mainloop()

In this example, the activebackground option is set to “green”, so the Menubutton will have a green background when the mouse is over it or when the associated menu is active.

The `activeforeground` option of a Tkinter Menubutton widget

It sets the foreground color to be used when the mouse cursor is over the Menubutton or when the Menubutton’s associated menu is active.

The value of activeforeground can be specified as a color name (e.g. “red”), a hexadecimal value (e.g. “#FF0000”), an RGB tuple (e.g. (255, 0, 0)), or an RGBA tuple (e.g. (255, 0, 0, 128)).

Here’s an example of how to create a Menubutton with a custom active foreground color:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, activeforeground="blue")
menubutton.pack()

root.mainloop()

In this example, the activeforeground option is set to “blue”, so the Menubutton will have blue text when the mouse is over it or when the associated menu is active.

The `anchor` option of a Tkinter Menubutton widget

It determines how the text of the Menubutton is aligned within the available space. It can be set to one of the following values:

“center” (default): The text is centered horizontally and vertically within the Menubutton.
“n”: The text is aligned with the top edge of the Menubutton.
“s”: The text is aligned with the bottom edge of the Menubutton.
“e”: The text is aligned with the right edge of the Menubutton.
“w”: The text is aligned with the left edge of the Menubutton.
“nw”: The text is aligned with the top-left corner of the Menubutton.
“ne”: The text is aligned with the top-right corner of the Menubutton.
“sw”: The text is aligned with the bottom-left corner of the Menubutton.
“se”: The text is aligned with the bottom-right corner of the Menubutton.

Here’s an example of how to create a Menubutton with a custom anchor value:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, anchor="w")
menubutton.pack()

root.mainloop()

In this example, the anchor option is set to “w”, so the text of the Menubutton will be aligned with the left edge of the available space.

The `bg` option of a Tkinter Menubutton widget

It sets the background color of the Menubutton.

The value of bg can be specified as a color name (e.g. “red”), a hexadecimal value (e.g. “#FF0000”), an RGB tuple (e.g. (255, 0, 0)), or an RGBA tuple (e.g. (255, 0, 0, 128)).

Here’s an example of how to create a Menubutton with a custom background color:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, bg="yellow")
menubutton.pack()

root.mainloop()

The `bitmap` option of a Tkinter Menubutton widget

It sets the bitmap image to be displayed on the left side of the Menubutton. A bitmap is a small, monochrome image that can be used to represent an icon or other graphical element.

The value of bitmap can be specified as a string, which is the name of the bitmap to be used. Tkinter provides a number of built-in bitmaps, such as “error”, “info”, “question”, and “warning”, among others.

Here’s an example of how to create a Menubutton with a custom bitmap image:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, bitmap="error")
menubutton.pack()

root.mainloop()

In this example, the bitmap option is set to “error”, so the Menubutton will display the built-in error icon on the left side.

The borderwidth option of a Tkinter Menubutton widget sets the width of the border around the Menubutton. The value of borderwidth is an integer representing the width in pixels.

Here’s an example of how to create a Menubutton with a custom border width:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, borderwidth=2)
menubutton.pack()

root.mainloop()

In this example, the borderwidth option is set to 2, so the Menubutton will have a border that is 2 pixels wide.

The `compound` option of a Tkinter Menubutton widget

It determines how the bitmap and text of the Menubutton are displayed. It can be set to one of the following values:

“none”: The bitmap and text are displayed separately.
“top”: The bitmap is displayed above the text.
“bottom”: The bitmap is displayed below the text.
“left”: The bitmap is displayed to the left of the text.
“right”: The bitmap is displayed to the right of the text.

Here’s an example of how to create a Menubutton with a custom compound value:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, compound="left", bitmap="info")
menubutton.pack()

root.mainloop()

In this example, the compound option is set to “left”, so the bitmap (in this case, the built-in “info” icon) will be displayed to the left of the text.

The `cursor` option of a Tkinter Menubutton widget

It sets the type of cursor that is displayed when the mouse is over the Menubutton.

The value of cursor can be specified as a string representing the name of a predefined cursor or as a system-specific cursor description.

Here’s an example of how to create a Menubutton with a custom cursor:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, cursor="hand2")
menubutton.pack()

root.mainloop()

In this example, the cursor option is set to “hand2”, which is a predefined cursor that looks like a pointing hand. When the mouse is over the Menubutton, the cursor will change to the “hand2” cursor.

The `direction` option of a Tkinter Menubutton widget

It sets the direction in which the menu opens when the Menubutton is clicked.

The value of direction can be set to one of the following values:

“above”: The menu opens above the Menubutton.
“below”: The menu opens below the Menubutton.
“left”: The menu opens to the left of the Menubutton.
“right”: The menu opens to the right of the Menubutton.

Here’s an example of how to create a Menubutton with a custom direction:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, direction="right")
menubutton.pack()

root.mainloop()

In this example, the direction option is set to “right”, so the menu will open to the right of the Menubutton when it is clicked.

The `disabledforeground` option of a Tkinter Menubutton widget

It sets the foreground color to be used for the text when the Menubutton is disabled.

The value of disabledforeground is a string representing the color that should be used for the text. It can be specified in any of the forms accepted by Tkinter, such as a color name (e.g., “red”) or a hexadecimal RGB value (e.g., “#FF0000”).

Here’s an example of how to create a Menubutton with a custom disabled foreground color:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, disabledforeground="gray")
menubutton.pack()

# Disable the Menubutton after 5 seconds
menubutton.after(5000, lambda: menubutton.config(state="disabled"))

root.mainloop()

In this example, the disabledforeground option is set to “gray”, so the text will be displayed in gray when the Menubutton is disabled. The Menubutton is disabled after 5 seconds using the after method and a lambda function.

The `font` option of a Tkinter Menubutton widget

It sets the font to be used for the text displayed on the button.

The value of font is a string representing the font family, size and style. The string can be formatted in various ways such as “font_family font_size font_style” or “font_family font_size bold/italic/underline”. The font option can also be set to a tkFont.Font object that has been created using the tkFont module.

Here’s an example of how to create a Menubutton with a custom font:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

# Create a custom font
custom_font = ("Arial", 12, "bold")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, font=custom_font)
menubutton.pack()

root.mainloop()

In this example, the font option is set to a custom font that has been defined as a tuple containing the font family, size and style. The Menubutton will display the text using the “Arial” font with a size of 12 and bold style.

The `foreground` option of a Tkinter Menubutton widget

It sets the color to be used for the text displayed on the button.

The value of foreground is a string representing the color that should be used for the text. It can be specified in any of the forms accepted by Tkinter, such as a color name (e.g., “red”) or a hexadecimal RGB value (e.g., “#FF0000”).

Here’s an example of how to create a Menubutton with a custom foreground color:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, foreground="blue")
menubutton.pack()

root.mainloop()

In this example, the foreground option is set to “blue”, so the text on the Menubutton will be displayed in blue.

The `height` option of a Tkinter Menubutton widget

It sets the height of the button in lines of text.

The value of height is an integer that specifies the number of lines of text that the button should be high. If the height option is not specified, the default value is 1.

Here’s an example of how to create a Menubutton with a height of 2 lines:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, height=2)
menubutton.pack()

root.mainloop()

In this example, the height option is set to 2, so the Menubutton will be 2 lines high. Note that the actual height of the button will depend on the font and font size used, so the height value should be adjusted accordingly to achieve the desired height.

The `highlightbackground` option of a Tkinter Menubutton widget

It sets the color of the highlight rectangle when the Menubutton does not have focus.

The value of highlightbackground is a string representing the color that should be used for the highlight rectangle. It can be specified in any of the forms accepted by Tkinter, such as a color name (e.g., “red”) or a hexadecimal RGB value (e.g., “#FF0000”).

Here’s an example of how to create a Menubutton with a custom highlight background color:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, highlightbackground="blue")
menubutton.pack()

root.mainloop()

In this example, the highlightbackground option is set to “blue”, so the highlight rectangle around the Menubutton will be displayed in blue when the Menubutton does not have focus.

The `highlightcolor` option of a Tkinter Menubutton widget

It sets the color of the highlight rectangle when the Menubutton has focus.

The value of highlightcolor is a string representing the color that should be used for the highlight rectangle. It can be specified in any of the forms accepted by Tkinter, such as a color name (e.g., “red”) or a hexadecimal RGB value (e.g., “#FF0000”).

Here’s an example of how to create a Menubutton with a custom highlight color:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, highlightcolor="blue")
menubutton.pack()

root.mainloop()

In this example, the highlightcolor option is set to “blue”, so the highlight rectangle around the Menubutton will be displayed in blue when the Menubutton has focus.

The highlightthickness option of a Tkinter Menubutton widget

It sets the width of the highlight rectangle that is drawn around the Menubutton when it has focus.

The value of highlightthickness is an integer representing the width of the highlight rectangle in pixels. A value of 0 means that no highlight rectangle will be drawn around the Menubutton.

Here’s an example of how to create a Menubutton with a custom highlight thickness:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, highlightthickness=2)
menubutton.pack()

root.mainloop()

In this example, the highlightthickness option is set to 2, so a highlight rectangle with a width of 2 pixels will be drawn around the Menubutton when it has focus.

The `image` option of a Tkinter Menubutton widget

It allows you to display an image alongside the text of the Menubutton.

The value of image is an instance of the Tkinter PhotoImage class or a subclass of it, representing the image that should be displayed on the Menubutton. The image can be created from a file or a data stream, or from a raw RGB buffer using the PhotoImage constructor.

Here’s an example of how to create a Menubutton with an image:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

image = tk.PhotoImage(file="path/to/image.gif")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, image=image, compound="left")
menubutton.pack()

root.mainloop()

In this example, the image option is set to the PhotoImage instance created from the file “path/to/image.gif”. The compound option is also set to “left” to align the image to the left of the Menubutton text.

The `indicatoron` option of a Tkinter Menubutton widget

It determines whether the Menubutton should display a down-arrow indicator to the right of the text.

If indicatoron is set to 1 (the default), the Menubutton will display the down-arrow indicator. If indicatoron is set to 0, the Menubutton will not display the indicator.

Here’s an example of how to create a Menubutton with no down-arrow indicator:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, indicatoron=0)
menubutton.pack()

root.mainloop()

In this example, the indicatoron option is set to 0, so the Menubutton will not display the down-arrow indicator.

The `justify` option of a Tkinter Menubutton widget

It sets the horizontal alignment of the text or image within the Menubutton.

The value of justify can be one of the following strings:

“left”: Aligns the text or image to the left edge of the Menubutton.
“center”: Centers the text or image horizontally within the Menubutton.
“right”: Aligns the text or image to the right edge of the Menubutton.

By default, the justify option is set to “center”.

Here’s an example of how to create a Menubutton with left-aligned text:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, justify="left")
menubutton.pack()

root.mainloop()

In this example, the justify option is set to “left”, so the text of the Menubutton will be left-aligned within the available space.

The padx option of a Tkinter Menubutton widget

It sets the amount of horizontal padding (in pixels) to be added on the left and right sides of the text and/or image within the Menubutton.

The value of padx should be an integer or a float representing the amount of padding in pixels. By default, the padx option is set to 0.

Here’s an example of how to create a Menubutton with horizontal padding:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, padx=10)
menubutton.pack()

root.mainloop()

In this example, the padx option is set to 10, so there will be 10 pixels of padding added to the left and right sides of the Menubutton text.

The `pady` option of a Tkinter Menubutton widget

It sets the amount of vertical padding (in pixels) to be added above and below the text and/or image within the Menubutton.

The value of pady should be an integer or a float representing the amount of padding in pixels. By default, the pady option is set to 0.

Here’s an example of how to create a Menubutton with vertical padding:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, pady=10)
menubutton.pack()

root.mainloop()

In this example, the pady option is set to 10, so there will be 10 pixels of padding added above and below the Menubutton text.

The `relief` option of a Tkinter Menubutton widget

It sets the 3D appearance of the widget border.

The value of relief should be one of the following strings:

“flat” (no 3D border)
“raised” (a raised 3D border)
“sunken” (a sunken 3D border)
“groove” (a 3D groove border)
“ridge” (a 3D ridge border)

By default, the relief option is set to “raised”.

Here’s an example of how to create a Menubutton with different relief options:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton1 = tk.Menubutton(root, text="Flat", menu=menu, relief="flat")
menubutton1.pack(side="left", padx=10, pady=10)

menubutton2 = tk.Menubutton(root, text="Raised", menu=menu, relief="raised")
menubutton2.pack(side="left", padx=10, pady=10)

menubutton3 = tk.Menubutton(root, text="Sunken", menu=menu, relief="sunken")
menubutton3.pack(side="left", padx=10, pady=10)

root.mainloop()

In this example, we create three Menubutton widgets with different relief options: “flat”, “raised”, and “sunken”. The Menubuttons are displayed with different 3D borders.

The `state` option of a Tkinter Menubutton widget

It determines whether the widget can be interacted with by the user.

The value of state should be one of the following strings:

“normal” (the widget is active and can be interacted with)
“disabled” (the widget is disabled and cannot be interacted with)

By default, the state option is set to “normal”.

Here’s an example of how to create a Menubutton with a disabled state:

In this example, we create a Menubutton widget and set its state option to “disabled”. The Menubutton is displayed in a disabled state, and cannot be interacted with by the user.

The `takefocus` option of a Tkinter Menubutton widget

It determines whether the widget can receive keyboard focus when the user presses the Tab key.

The value of takefocus should be a Boolean value (True or False). If takefocus is set to True, the Menubutton can receive keyboard focus; if it is set to False, the Menubutton cannot receive keyboard focus.

By default, the takefocus option is set to True.

Here’s an example of how to create a Menubutton that cannot receive keyboard focus:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, takefocus=False)
menubutton.pack()

root.mainloop()

In this example, we create a Menubutton widget and set its takefocus option to False. The Menubutton is displayed, but cannot receive keyboard focus when the user presses the Tab key.

The `text` option of a Tkinter Menubutton widget

It is used to set the text displayed on the button.

The value of text should be a string containing the text to display on the Menubutton.

Here’s an example of how to create a Menubutton with text:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu)
menubutton.pack()

root.mainloop()

In this example, we create a Menubutton widget and set its text option to “Menu”. The Menubutton is displayed with the text “Menu” on it.

The `textvariable` option of a Tkinter Menubutton widget

It is used to associate a Tkinter variable with the text displayed on the button. When the value of the variable changes, the text displayed on the Menubutton will also change to reflect the new value.

The value of textvariable should be an instance of a tkinter.StringVar or tkinter.IntVar object.

Here’s an example of how to create a Menubutton with a textvariable:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

text_var = tk.StringVar(value="Menu")
menubutton = tk.Menubutton(root, textvariable=text_var, menu=menu)
menubutton.pack()

def change_text():
    text_var.set("New Menu")

tk.Button(root, text="Change Text", command=change_text).pack()

root.mainloop()

In this example, we create a Menubutton widget and set its textvariable option to a tkinter.StringVar object. We also create a button that changes the value of the variable when clicked. The Menubutton displays the initial value of the variable (“Menu”), and when the button is clicked, the value of the variable is changed to “New Menu”, causing the Menubutton to display the new text.

The underline option of a Tkinter Menubutton widget

It is used to indicate which character in the text of the Menubutton should be underlined. This is typically used to indicate a keyboard shortcut for the Menubutton.

The value of underline should be an integer representing the index of the character in the text string to underline. The indexing starts from 0, so the first character in the text string is at index 0, the second character is at index 1, and so on.

Here’s an example of how to create a Menubutton with an underlined character:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Mneu", menu=menu, underline=1)
menubutton.pack()

root.mainloop()

In this example, we create a Menubutton widget and set its underline option to 1, indicating that the second character in the text string (“n”) should be underlined. The Menubutton is displayed with the “n” character underlined, indicating that the keyboard shortcut for this Menubutton is Alt+N.

The wraplength option of a Tkinter Menubutton widget is used to specify the maximum width of the text before it is wrapped onto the next line.

The value of wraplength should be an integer representing the maximum width of the text in pixels. If the text exceeds this width, it will be wrapped onto the next line.

Here’s an example of how to create a Menubutton with a wraplength:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="This is a very long Menubutton label that needs to be wrapped onto the next line", menu=menu, wraplength=100)
menubutton.pack()

root.mainloop()

In this example, we create a Menubutton widget with a long text string. We set the wraplength option to 100 pixels, indicating that if the text exceeds this width, it should be wrapped onto the next line. The Menubutton is displayed with the text wrapped onto the next line if it exceeds the specified width.

The width option of a Tkinter Menubutton widget is used to specify the width of the Menubutton widget in characters. The value of width should be an integer representing the number of characters that the Menubutton should be wide.

Here’s an example of how to create a Menubutton with a width of 20 characters:

import tkinter as tk

root = tk.Tk()

menu = tk.Menu(root, tearoff=0)
menu.add_command(label="Option 1")
menu.add_command(label="Option 2")
menu.add_command(label="Option 3")

menubutton = tk.Menubutton(root, text="Menu", menu=menu, width=20)
menubutton.pack()

root.mainloop()

In this example, we create a Menubutton widget and set its width option to 20, indicating that it should be 20 characters wide. The Menubutton is displayed with a width of 20 characters. If the text string of the Menubutton is shorter than the specified width, the Menubutton will still be displayed with the specified width.

References :

Here are some references that you can use to learn more about Tkinter Menubutton and its usage:

Python Tkinter

Curriculum

Python Tkinter Menubutton Widget

Python Tkinter Menubutton Widget

How to create Tkinter Menubutton Widget

The options of Tkinter Menubutton

The activebackground option of a Tkinter Menubutton widget

The activeforeground option of a Tkinter Menubutton widget

The anchor option of a Tkinter Menubutton widget

The bg option of a Tkinter Menubutton widget

The bitmap option of a Tkinter Menubutton widget

The compound option of a Tkinter Menubutton widget

The cursor option of a Tkinter Menubutton widget

The direction option of a Tkinter Menubutton widget

The disabledforeground option of a Tkinter Menubutton widget

The font option of a Tkinter Menubutton widget

The foreground option of a Tkinter Menubutton widget

The height option of a Tkinter Menubutton widget

The highlightbackground option of a Tkinter Menubutton widget

The highlightcolor option of a Tkinter Menubutton widget

The image option of a Tkinter Menubutton widget

The indicatoron option of a Tkinter Menubutton widget

The justify option of a Tkinter Menubutton widget

The pady option of a Tkinter Menubutton widget

The relief option of a Tkinter Menubutton widget

The state option of a Tkinter Menubutton widget

The takefocus option of a Tkinter Menubutton widget

The text option of a Tkinter Menubutton widget

The textvariable option of a Tkinter Menubutton widget

References :

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The `activebackground` option of a Tkinter Menubutton widget

The `activeforeground` option of a Tkinter Menubutton widget

The `anchor` option of a Tkinter Menubutton widget

The `bg` option of a Tkinter Menubutton widget

The `bitmap` option of a Tkinter Menubutton widget

The `compound` option of a Tkinter Menubutton widget

The `cursor` option of a Tkinter Menubutton widget

The `direction` option of a Tkinter Menubutton widget

The `disabledforeground` option of a Tkinter Menubutton widget

The `font` option of a Tkinter Menubutton widget

The `foreground` option of a Tkinter Menubutton widget

The `height` option of a Tkinter Menubutton widget

The `highlightbackground` option of a Tkinter Menubutton widget

The `highlightcolor` option of a Tkinter Menubutton widget

The `image` option of a Tkinter Menubutton widget

The `indicatoron` option of a Tkinter Menubutton widget

The `justify` option of a Tkinter Menubutton widget

The `pady` option of a Tkinter Menubutton widget

The `relief` option of a Tkinter Menubutton widget

The `state` option of a Tkinter Menubutton widget

The `takefocus` option of a Tkinter Menubutton widget

The `text` option of a Tkinter Menubutton widget

The `textvariable` option of a Tkinter Menubutton widget