turtle.sety() method moves the turtle to a specified y-coordinate while keeping its current x-coordinate and heading (direction) unchanged. If the pen is down, it will draw a line from the current position to the new y-coordinate; if the pen is up, it moves without drawing.
Syntax:
turtle.sety(y)
- Parameters: y (int | float) is the y-coordinate to move the turtle to.
- Returns: This method only changes the turtle's vertical position on the screen.
Examples of turtle.sety() function
Example 1 : Simple vertical movement
import turtle
print(turtle.position()) # Initial position
turtle.sety(30)
print(turtle.position()) # After moving up
turtle.sety(-50)
print(turtle.position()) # After moving down
turtle.done()
Output :
(0.0, 0.0)
(0.0, 30.0)
(0.0, -50.0)
Explanation: The turtle’s y-coordinate changes to 30, then to -50, while the x-coordinate remains 0.
Example 2 : Drawing with y-coordinate changes
import turtle
for i in range(4):
turtle.forward(100)
turtle.right(90)
turtle.forward(20)
turtle.right(90)
turtle.forward(100)
turtle.penup()
turtle.sety(-40 * (i + 1))
turtle.pendown()
turtle.left(180)
turtle.done()
Output
Explanation: The turtle draws repeated vertical patterns, then uses sety() to jump down to the next row without affecting the x-coordinate.
