Customizing Tkinter entry Widgets with themes

Python Tkinter Custom Widgets and Themes: Exercise-3 with Solution

Write a Python program that implements a themed "Entry" widget with a different background and border color using Tkinter.

Sample Solution:

Python Code:

import tkinter as tk

class ThemedEntry:
    def __init__(self, master=None, **kwargs):
        self.entry = tk.Entry(master, **kwargs)
        self.entry.configure(
            highlightthickness=2,  # Set the border thickness
            highlightcolor="red",  # Set the border color
            bg="lightblue"         # Set the background color
        )

if __name__ == "__main__":
    root = tk.Tk()
    root.title("Themed Entry Example")

    themed_entry = ThemedEntry(root)
    themed_entry.entry.pack(padx=20, pady=20)

    root.mainloop()

Explanation:

In the exercise above -

• Import the "tkinter" library.
• Define a class called "ThemedEntry". This class represents a custom themed 'Entry' widget.
• In the init method of the "ThemedEntry" class, we initialize an Entry widget by calling tk.Entry(master, kwargs).
• We configure the appearance of the Entry widget using the .configure() method:
• highlightthickness=2: Sets the border thickness around the Entry widget to 2 pixels.
• highlightcolor="red": Sets the border color to red. You can replace "red" with any other valid color.
• bg="lightblue": Sets the background color of the Entry widget to light blue.
• In the if name == "__main__": block, we create the main application window (root) using tk.Tk() and set its title to "Themed Entry Example."
• Create an instance of the "ThemedEntry" class called "themed_entry".
• Finally, pack the 'entry' widget (contained within the "ThemedEntry" instance) inside the main window with padding ('padx' and 'pady') to ensure some spacing around the widget.
• Finally, start the Tkinter main loop with "root.mainloop()".

Output:

Flowchart:

Python Code Editor:

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