turtle.clearstamps(n=None) Parameters: n – an integer (or None) Delete all or first/last n of turtle’s stamps. If n is None, delete all stamps, if n > 0 delete first n stamps, else if n < 0 delete last n stamps. >>> for i in range(8): ... turtle.stamp(); turtle.fd(30) 13 14 15 16 17 18 19 20 >>> turtle.clearstamps(2) >>> turtle.clearstamps(-2) >>> turtle.clearstamps()

turtle.clearstamp(stampid) Parameters: stampid – an integer, must be return value of previous stamp() call Delete stamp with given stampid. >>> turtle.position() (150.00,-0.00) >>> turtle.color("blue") >>> astamp = turtle.stamp() >>> turtle.fd(50) >>> turtle.position() (200.00,-0.00) >>> turtle.clearstamp(astamp) >>> turtle.position() (200.00,-0.00)

turtle.clearscreen() Delete all drawings and all turtles from the TurtleScreen. Reset the now empty TurtleScreen to its initial state: white background, no background image, no event bindings and tracing on. Note This TurtleScreen method is available as a global function only under the name clearscreen. The global function clear is a different one derived from the Turtle method clear.

turtle.clear() Delete the turtle’s drawings from the screen. Do not move turtle. State and position of the turtle as well as drawings of other turtles are not affected.

turtle.circle(radius, extent=None, steps=None) Parameters: radius – a number extent – a number (or None) steps – an integer (or None) Draw a circle with given radius. The center is radius units left of the turtle; extent – an angle – determines which part of the circle is drawn. If extent is not given, draw the entire circle. If extent is not a full circle, one endpoint of the arc is the current pen position. Draw the arc in counterclockwise direction if radius is positive, otherwise

turtle.bye() Shut the turtlegraphics window.

turtle.bk(distance) turtle.backward(distance) Parameters: distance – a number Move the turtle backward by distance, opposite to the direction the turtle is headed. Do not change the turtle’s heading. >>> turtle.position() (0.00,0.00) >>> turtle.backward(30) >>> turtle.position() (-30.00,0.00)

turtle.bgpic(picname=None) Parameters: picname – a string, name of a gif-file or "nopic", or None Set background image or return name of current backgroundimage. If picname is a filename, set the corresponding image as background. If picname is "nopic", delete background image, if present. If picname is None, return the filename of the current backgroundimage. >>> screen.bgpic() 'nopic' >>> screen.bgpic("landscape.gif") >>> screen.bgpic() "landscape.gif"

turtle.bgcolor(*args) Parameters: args – a color string or three numbers in the range 0..colormode or a 3-tuple of such numbers Set or return background color of the TurtleScreen. >>> screen.bgcolor("orange") >>> screen.bgcolor() 'orange' >>> screen.bgcolor("#800080") >>> screen.bgcolor() (128.0, 0.0, 128.0)

turtle.begin_poly() Start recording the vertices of a polygon. Current turtle position is first vertex of polygon.