turtle.rt(130)

turtle.clear () turtle.done ()

### `write(arg, move=False, align='left', font=('Arial', 8, 'normal'))`

Writes the string `arg` at the current turtle position. The text can be moved with the turtle if `move` is `True`. The `align` parameter can be set to `'left'`, `'center'`, or `'right'`. The `font` is a tuple specifying the font name, size, and type (e.g., `'normal'`, `'bold'`, `'italic'`).

- `arg` -- string to be written
- `move` -- boolean
- `align` -- string
- `font` -- tuple

```python
import turtle
turtle.write("Hello, Turtle!", move=True, align='center', font=('Arial', 16, 'bold'))
turtle.done()

showturtle() | st()¶

Makes the turtle visible.

hideturtle() | ht()¶

Makes the turtle invisible.

isvisible()¶

Returns True if the turtle is visible, otherwise False.

Screen Control¶

bgcolor(*args)¶

Sets or returns the background color of the turtle screen. Can be called in the following ways:

• bgcolor(colorstring) -- color string (e.g., "red", "#ff0000")
• bgcolor((r, g, b)) -- color tuple. Each of r, g, and b should be in the range 0.1 or 0.255, depending on the color mode (see colormode())
• bgcolor(r, g, b) -- color numbers. Each of r, g, and b should be in the range 0.1 or 0.255, depending on the color mode (see colormode())

import turtle
turtle.bgcolor("lightblue")
turtle.done()

bgpic(picname=None)¶

Sets or returns the background image of the turtle screen. If called without arguments, returns the current background image.

• picname -- string (filename of the image)

import turtle
turtle.bgpic("background.gif")
turtle.done()

title(titlestring)¶

Sets the title of the turtle graphics window.

• titlestring -- string

import turtle
turtle.title("My Turtle Program")
turtle.done()

bye()¶

Closes the turtle graphics window.

import turtle
turtle.bye()

screensize(canvwidth=None, canvheight=None, bg=None)¶

Sets or returns the size of the turtle graphics window. If called without arguments, returns the current canvas size.

• canvwidth -- integer
• canvheight -- integer
• bg -- color string or tuple

import turtle
turtle.screensize(800, 600, "yellow")
turtle.done()

tracer(n=None, delay=None)¶

Turns turtle animation on or off and sets a delay for updates. If n is 0, no animation occurs. If n is greater than 1, updates are made every nth screen update. delay is the time in milliseconds between updates.

• n -- integer
• delay -- integer

import turtle
turtle.tracer(0, 0)
for i in range(36):
    turtle.fd(100)
    turtle.rt(170)
turtle.update()
turtle.done()

update()¶

Performs a turtle screen update. Used when tracer is turned off.

import turtle
turtle.tracer(0, 0)
for i in range(36):
    turtle.fd(100)
    turtle.rt(170)
turtle.update()
turtle.done()