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.color(*args) Return or set pencolor and fillcolor. Several input formats are allowed. They use 0 to 3 arguments as follows: color() Return the current pencolor and the current fillcolor as a pair of color specification strings or tuples as returned by pencolor() and fillcolor(). color(colorstring), color((r,g,b)), color(r,g,b) Inputs as in pencolor(), set both, fillcolor and pencolor, to the given value. color(colorstring1, colorstring2), color((r1,g1,b1), (r2,g2,b2)) Equivalen

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.bye() Shut the turtlegraphics window.

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

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.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_fill() To be called just before drawing a shape to be filled.