Python - Frame or Window in Tkinter GUI

Question

Good day! I would like to ask a question about Tkinter Frame or Window. Does it support partial border like I want to have a border for only on the bottom and left side and opacity of let's say around 65%? Thank you!

Answer 1

Try something like this:

import tkinter as tk

BORDER_THICKNESS = 3

root = tk.Tk()

canvas = tk.Canvas(root)
canvas.pack(fill="both", expand=True)

bottom_border = tk.Frame(root, height=BORDER_THICKNESS, bg="red", highlightthickness=0, bd=0)
bottom_border.pack(fill="x")

root.mainloop()

The code produces a window like this:

The grey line bellow the red one is tk.Tk()'s border.

I created a 3 pixel thick tkinter.Frame with a red background and made sure that it doesn't have a border. It will be trivial to add another red line on the left.

About the opacity: you can just change the colour of the frame or try something like this.

Answer 2

No, tkinter widgets don't support partial borders and doesn't support opacity. However, you can create your own style or draw your own borders fairly easily.

For example, to create an entry with a border only along the bottom, you can create an entry with no border and then use place to create a border along one edge.

import tkinter as tk
from tkinter import ttk

root = tk.Tk()

entry = tk.Entry(root, borderwidth=0)
border = ttk.Separator(entry, orient="horizontal")
border.place(x=0, rely=1.0, height=2, relwidth=1.0)

entry.pack(side="top", padx=20, pady=20)

root.mainloop()