﻿ Python – Creatge rectangle on a Tkinter canvas widget

# Creating a Blue rectangle on a Tkinter canvas widget

## Python Tkinter Canvas and Graphics: Exercise-1 with Solution

Write a Python program to create a Tkinter window with a canvas widget that displays a blue rectangle.

Sample Solution:

Python Code:

``````import tkinter as tk

# Create the main Tkinter window
root = tk.Tk()
root.title("Blue Rectangle")

# Create a Canvas widget
canvas = tk.Canvas(root, width=300, height=200, bg="white")
canvas.pack()

# Draw a blue rectangle on the Canvas
rectangle = canvas.create_rectangle(50, 50, 250, 150, fill="blue")

# Start the Tkinter event loop
root.mainloop()
```
```

Explanation:

In the exercise above -

• Import "tkinter" as "tk" for creating GUI components.
• Create the main Tkinter window using tk.Tk() and set its title to "Blue Rectangle."
• Create a Canvas widget using tk.Canvas(), specifying its width, height, and background color.
• Draw a blue rectangle on the "Canvas" using the "canvas.create_rectangle()" method. The coordinates (50, 50) and (250, 150) specify the top-left and bottom-right corners of the rectangle, and fill="blue" sets the fill color to blue.
• The main event loop, root.mainloop(), starts the Tkinter application.

Output:

```
```
```
```

Flowchart:

Python Code Editor:

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## Python: Tips of the Day

Summing a sequence of numbers (calculating the sum of zero to ten with skips):

```>>> l = range(0,10,2)
>>> sum(l)
20
```

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