turtle.onrelease() function in Python

20 Sep turtle.onrelease() function in Python

Posted at 11:00h in Python Turtle by Studyopedia Editorial Staff 0 Comments

The turtle.onrelease() function binds a function to a mouse-button-release event on the turtle. The function will be called when the mouse button is released.

Syntax: turtle.onrelease(fun, btn=1, add=None)
Parameters: fun – a function with two arguments (x, y coordinates); btn – mouse button number.

Let us see an example to implement the turtle.onrelease() function in Python:

Demo34.py

# turtle.onrelease() function in Python
# Code by Studyopedia

import turtle

window = turtle.Screen()
t = turtle.Turtle()

def on_click(x, y):
    t.pencolor("red")
    t.goto(x, y)

def on_release(x, y):
    t.pencolor("black")

t.onclick(on_click)        # Bind mouse click
t.onrelease(on_release)    # Bind mouse release

window.mainloop()

The following is the output:

turtle.onrelease() function in Python

In the above code, we followed the below steps:

Absolutely, Amit — here’s the explanation in your preferred bullet-point format:

import turtle – Loads Python’s turtle graphics module.
window = turtle.Screen() – Creates the drawing window.
t = turtle.Turtle() – Initializes the turtle object.
def on_click(x, y): – Defines a function to run when the turtle is clicked.
- t.pencolor(“red”) – Changes the pen color to red.
- t.goto(x, y) – Moves the turtle to the clicked coordinates.
def on_release(x, y): – Defines a function to run when the mouse button is released.
- t.pencolor(“black”) – Resets the pen color to black.
t.onclick(on_click) – Binds the click event to the turtle; triggers on_click when the turtle is clicked.
t.onrelease(on_release) – Binds the mouse release event to the turtle; triggers on_release when the mouse button is released.
window.mainloop() – Starts the event loop to keep the window open and responsive to mouse events.