Someday, we should find a minimal list of needed commands and documen them. =======================Python session journal================= >>> dir(turtle) ['Canvas' 'Pen' 'RawPen' 'RawTurtle' 'Screen' 'ScrolledCanvas' 'Shape' 'TK' 'TNavigator' 'TPen' 'Tbuffer' 'Terminator' 'Turtle' 'TurtleGraphicsError' 'TurtleScreen' 'TurtleScreenBase' 'Vec2D' '_CFG' '_LANGUAGE' '_Root' '_Screen' '_TurtleImage' '__all__' '__builtins__' '__doc__' '__file__' '__forwardmethods' '__methodDict' '__methods' '__name__' '__package__' '__stringBody' '_alias_list' '_getpen' '_getscreen' '_math_functions' '_screen_docrevise' '_tg_classes' '_tg_screen_functions' '_tg_turtle_functions' '_tg_utilities' '_turtle_docrevise' '_ver' 'acos' 'acosh' 'addshape' 'asin' 'asinh' 'atan' 'atan2' 'atanh' 'back' 'backward' 'begin_fill' 'begin_poly' 'bgcolor' 'bgpic' 'bk' 'bye' 'ceil' 'circle' 'clear' 'clearscreen' 'clearstamp' 'clearstamps' 'clone' 'color' 'colormode' 'config_dict' 'copysign' 'cos' 'cosh' 'deepcopy' 'degrees' 'delay' 'distance' 'done' 'dot' 'down' 'e' 'end_fill' 'end_poly' 'erf' 'erfc' 'exitonclick' 'exp' 'expm1' 'fabs' 'factorial' 'fd' 'fill' 'fillcolor' 'floor' 'fmod' 'forward' 'frexp' 'fsum' 'gamma' 'get_poly' 'getcanvas' 'getmethparlist' 'getpen' 'getscreen' 'getshapes' 'getturtle' 'goto' 'heading' 'hideturtle' 'home' 'ht' 'hypot' 'isdown' 'isfile' 'isinf' 'isnan' 'isvisible' 'join' 'ldexp' 'left' 'lgamma' 'listen' 'log' 'log10' 'log1p' 'lt' 'mainloop' 'math' 'methodname' 'mode' 'modf' 'onclick' 'ondrag' 'onkey' 'onrelease' 'onscreenclick' 'ontimer' 'os' 'pd' 'pen' 'pencolor' 'pendown' 'pensize' 'penup' 'pi' 'pos' 'position' 'pow' 'pu' 'radians' 'read_docstrings' 'readconfig' 'register_shape' 'reset' 'resetscreen' 'resizemode' 'right' 'rt' 'screensize' 'seth' 'setheading' 'setpos' 'setposition' 'settiltangle' 'setundobuffer' 'setup' 'setworldcoordinates' 'setx' 'sety' 'shape' 'shapesize' 'showturtle' 'sin' 'sinh' 'speed' 'split' 'sqrt' 'st' 'stamp' 'tan' 'tanh' 'tilt' 'tiltangle' 'time' 'title' 'towards' 'tracer' 'trunc' 'turtles' 'turtlesize' 'types' 'undo' 'undobufferentries' 'up' 'update' 'width' 'window_height' 'window_width' 'write' 'write_docstringdict' 'xcor' 'ycor'] >>> dir(turtle) ['Canvas' 'Pen' 'RawPen' 'RawTurtle' 'Screen' 'ScrolledCanvas' 'Shape' 'TK' 'TNavigator' 'TPen' 'Tbuffer' 'Terminator' 'Turtle' 'TurtleGraphicsError' 'TurtleScreen' 'TurtleScreenBase' 'Vec2D' '_CFG' '_LANGUAGE' '_Root' '_Screen' '_TurtleImage' '__all__' '__builtins__' '__doc__' '__file__' '__forwardmethods' '__methodDict' '__methods' '__name__' '__package__' '__stringBody' '_alias_list' '_getpen' '_getscreen' '_math_functions' '_screen_docrevise' '_tg_classes' '_tg_screen_functions' '_tg_turtle_functions' '_tg_utilities' '_turtle_docrevise' '_ver' 'acos' 'acosh' 'addshape' 'asin' 'asinh' 'atan' 'atan2' 'atanh' 'back' 'backward' 'begin_fill' 'begin_poly' 'bgcolor' 'bgpic' 'bk' 'bye' 'ceil' 'circle' 'clear' 'clearscreen' 'clearstamp' 'clearstamps' 'clone' 'color' 'colormode' 'config_dict' 'copysign' 'cos' 'cosh' 'deepcopy' 'degrees' 'delay' 'distance' 'done' 'dot' 'down' 'e' 'end_fill' 'end_poly' 'erf' 'erfc' 'exitonclick' 'exp' 'expm1' 'fabs' 'factorial' 'fd' 'fill' 'fillcolor' 'floor' 'fmod' 'forward' 'frexp' 'fsum' 'gamma' 'get_poly' 'getcanvas' 'getmethparlist' 'getpen' 'getscreen' 'getshapes' 'getturtle' 'goto' 'heading' 'hideturtle' 'home' 'ht' 'hypot' 'isdown' 'isfile' 'isinf' 'isnan' 'isvisible' 'join' 'ldexp' 'left' 'lgamma' 'listen' 'log' 'log10' 'log1p' 'lt' 'mainloop' 'math' 'methodname' 'mode' 'modf' 'onclick' 'ondrag' 'onkey' 'onrelease' 'onscreenclick' 'ontimer' 'os' 'pd' 'pen' 'pencolor' 'pendown' 'pensize' 'penup' 'pi' 'pos' 'position' 'pow' 'pu' 'radians' 'read_docstrings' 'readconfig' 'register_shape' 'reset' 'resetscreen' 'resizemode' 'right' 'rt' 'screensize' 'seth' 'setheading' 'setpos' 'setposition' 'settiltangle' 'setundobuffer' 'setup' 'setworldcoordinates' 'setx' 'sety' 'shape' 'shapesize' 'showturtle' 'sin' 'sinh' 'speed' 'split' 'sqrt' 'st' 'stamp' 'tan' 'tanh' 'tilt' 'tiltangle' 'time' 'title' 'towards' 'tracer' 'trunc' 'turtles' 'turtlesize' 'types' 'undo' 'undobufferentries' 'up' 'update' 'width' 'window_height' 'window_width' 'write' 'write_docstringdict' 'xcor' 'ycor'