Getting Started with Python's Turtle Graphics

This tutorial demonstrates how to use Python's built-in turtle module for creating simple graphics. It begins by importing the module and creating a pen object, then shows how to set the pen's speed, color, and size.

import turtle

t = turtle.Pen()

t.speed(100)

t.color("red")

t.pensize(40)

t.forward(100)

The article explains that the forward function moves the pen forward, while left and right rotate the drawing direction. Example rotation code:

t.right(45)  # angle in degrees

t.forward(100)

Additional drawing functions are covered: circle(radius) draws a circle, dot() creates a dot, and goto(x, y) moves the pen to a specific coordinate without drawing unless the pen is down. The up() and down() functions control whether movement leaves a trace.

Several complete code snippets illustrate these concepts. A more elaborate example creates a colorful pattern using loops, color fills, and multiple pen movements:

# coding=utf-8
import turtle
import time

turtle.color("red", "yellow")

turtle.begin_fill()
for _ in range(50):
    turtle.forward(200)
    turtle.left(170)

turtle.end_fill()

turtle.mainloop()

Another example defines a custom curve function and combines it with pen rotations to produce a complex shape:

import turtle
p = turtle.Pen()
p.speed(50)

def curvemove():
    for i in range(200):
        p.right(1)
        p.forward(1)
        p.color('red','pink')
        p.begin_fill()
        p.left(140)
        p.forward(111.65)
        curvemove()
        p.left(120)
        curvemove()
        p.forward(111.65)
        p.end_fill()

Throughout the guide, screenshots illustrate the resulting drawings, and a final note encourages readers to explore further by reading the original source.