Inheriting from Frame or not in a Tkinter application

In Object-Oriented Programming, inheritance allows a derived class to acquire properties from a base class. In Tkinter applications, you can inherit from the Frame class to create custom frames with predefined properties like background color, dimensions, and styling.

When you inherit from Frame, your custom class automatically gains all Frame capabilities while allowing you to define default properties that will be applied to every instance.

Example: Inheriting from Frame

Here's how to create a custom frame class by inheriting from Tkinter's Frame ?

# Import Tkinter Library
from tkinter import *

# Create an instance of Tkinter frame
win = Tk()

# Set the size of the application window
win.geometry("700x350")
win.title("Frame Inheritance Example")

# Create a class to define the frame
class NewFrame(Frame):
    def __init__(self, parent):
        super().__init__(parent)
        self["height"] = 200
        self["width"] = 200
        self["bd"] = 10
        self["relief"] = RAISED
        self["bg"] = "#aa11bb"

# Create Frame objects
frame_a = NewFrame(win)
frame_b = NewFrame(win)
frame_a.grid(row=0, column=0, padx=10, pady=10)
frame_b.grid(row=0, column=1, padx=10, pady=10)

win.mainloop()

Alternative: Not Inheriting from Frame

You can also create frames without inheritance by directly instantiating Frame objects ?

from tkinter import *

win = Tk()
win.geometry("700x350")
win.title("Direct Frame Creation")

# Create frames directly without inheritance
frame_a = Frame(win, height=200, width=200, bd=10, relief=RAISED, bg="#aa11bb")
frame_b = Frame(win, height=200, width=200, bd=10, relief=RAISED, bg="#aa11bb")

frame_a.grid(row=0, column=0, padx=10, pady=10)
frame_b.grid(row=0, column=1, padx=10, pady=10)

win.mainloop()

Comparison

Key Benefits of Inheritance

When you inherit from Frame, you can:

• Define default properties once and reuse them
• Add custom methods to your frame class
• Override existing methods for specialized behavior
• Create a consistent look across your application

Conclusion

Inherit from Frame when building complex applications that need custom frame behavior and consistent styling. Use direct Frame creation for simple applications where basic frames suffice.