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Current File : /usr/lib/python2.6/lib-tk/turtle.pyc
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Turtle graphics is a popular way for introducing programming to
kids. It was part of the original Logo programming language developed
by Wally Feurzig and Seymour Papert in 1966.

Imagine a robotic turtle starting at (0, 0) in the x-y plane. Give it
the command turtle.forward(15), and it moves (on-screen!) 15 pixels in
the direction it is facing, drawing a line as it moves. Give it the
command turtle.left(25), and it rotates in-place 25 degrees clockwise.

By combining together these and similar commands, intricate shapes and
pictures can easily be drawn.

----- turtle.py

This module is an extended reimplementation of turtle.py from the
Python standard distribution up to Python 2.5. (See: http://www.python.org)

It tries to keep the merits of turtle.py and to be (nearly) 100%
compatible with it. This means in the first place to enable the
learning programmer to use all the commands, classes and methods
interactively when using the module from within IDLE run with
the -n switch.

Roughly it has the following features added:

- Better animation of the turtle movements, especially of turning the
  turtle. So the turtles can more easily be used as a visual feedback
  instrument by the (beginning) programmer.

- Different turtle shapes, gif-images as turtle shapes, user defined
  and user controllable turtle shapes, among them compound
  (multicolored) shapes. Turtle shapes can be stretched and tilted, which
  makes turtles very versatile geometrical objects.

- Fine control over turtle movement and screen updates via delay(),
  and enhanced tracer() and speed() methods.

- Aliases for the most commonly used commands, like fd for forward etc.,
  following the early Logo traditions. This reduces the boring work of
  typing long sequences of commands, which often occur in a natural way
  when kids try to program fancy pictures on their first encounter with
  turtle graphics.

- Turtles now have an undo()-method with configurable undo-buffer.

- Some simple commands/methods for creating event driven programs
  (mouse-, key-, timer-events). Especially useful for programming games.

- A scrollable Canvas class. The default scrollable Canvas can be
  extended interactively as needed while playing around with the turtle(s).

- A TurtleScreen class with methods controlling background color or
  background image, window and canvas size and other properties of the
  TurtleScreen.

- There is a method, setworldcoordinates(), to install a user defined
  coordinate-system for the TurtleScreen.

- The implementation uses a 2-vector class named Vec2D, derived from tuple.
  This class is public, so it can be imported by the application programmer,
  which makes certain types of computations very natural and compact.

- Appearance of the TurtleScreen and the Turtles at startup/import can be
  configured by means of a turtle.cfg configuration file.
  The default configuration mimics the appearance of the old turtle module.

- If configured appropriately the module reads in docstrings from a docstring
  dictionary in some different language, supplied separately  and replaces
  the English ones by those read in. There is a utility function
  write_docstringdict() to write a dictionary with the original (English)
  docstrings to disc, so it can serve as a template for translations.

Behind the scenes there are some features included with possible
extensions in in mind. These will be commented and documented elsewhere.

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cCs|djo|iS|i}|djotd|n||_|d	joH|i|id|id|id|idd|_|_n|i	dS(
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             Mode      Initial turtle heading     positive angles
         ------------|-------------------------|-------------------
          'standard'    to the right (east)       counterclockwise
            'logo'        upward    (north)         clockwise

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        ury -- a number, y-coordinate of upper right corner of canvas

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cCs|djoF|iidotd|i|}qvtddn$t|totd|}n||i|<dS(sAdds a turtle shape to TurtleScreen's shapelist.

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        Optional argument:
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cCs2x+|iD] }|i|i|iq
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cCsi|djo|iSt||_d|_|dj	ot||_n|io|indS(seTurns turtle animation on/off and set delay for update drawings.

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        Example (for a TurtleScreen instance named screen):
        >>> screen.tracer(8, 25)
        >>> dist = 2
        >>> for i in range(200):
                fd(dist)
                rt(90)
                dist += 2
        iN(RRRRRR%(RtnR((s#/usr/lib/python2.6/lib-tk/turtle.pyR#s
	

cCs(|djo|iSt||_dS(s Return or set the drawing delay in milliseconds.

        Optional argument:
        delay -- positive integer

        Example (for a TurtleScreen instance named screen):
        >>> screen.delay(15)
        >>> screen.delay()
        15
        N(RRR(RR((s#/usr/lib/python2.6/lib-tk/turtle.pyRs
cCsVtiptt_tn|idjo%|id7_|i|i;_ndS(sIncrement upadate counter.iiN(Rt_RUNNINGRt	_RUNNNINGRRR(R((s#/usr/lib/python2.6/lib-tk/turtle.pyt
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cCsT|i}t|_x(|iD]}|i|iqW||_|idS(s'Perform a TurtleScreen update.
        N(RRR$t_update_datat_drawturtleRh(RttracingR((s#/usr/lib/python2.6/lib-tk/turtle.pyR%s		

	cCs|idS(s Return the width of the turtle window.

        Example (for a TurtleScreen instance named screen):
        >>> screen.window_width()
        640
        i(R(R((s#/usr/lib/python2.6/lib-tk/turtle.pyR'scCs|idS(s Return the height of the turtle window.

        Example (for a TurtleScreen instance named screen):
        >>> screen.window_height()
        480
        i(R(R((s#/usr/lib/python2.6/lib-tk/turtle.pyR&scCs|iS(sReturn the Canvas of this TurtleScreen.

        No argument.

        Example (for a Screen instance named screen):
        >>> cv = screen.getcanvas()
        >>> cv
        <turtle.ScrolledCanvas instance at 0x010742D8>
        (RN(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRs
cCst|iiS(sReturn a list of names of all currently available turtle shapes.

        No argument.

        Example (for a TurtleScreen instance named screen):
        >>> screen.getshapes()
        ['arrow', 'blank', 'circle', ... , 'turtle']
        (tsortedRR(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRs	icCs|i|||dS(sEBind fun to mouse-click event on canvas.

        Arguments:
        fun -- a function with two arguments, the coordinates of the
               clicked point on the canvas.
        num -- the number of the mouse-button, defaults to 1

        Example (for a TurtleScreen instance named screen
        and a Turtle instance named turtle):

        >>> screen.onclick(turtle.goto)

        ### Subsequently clicking into the TurtleScreen will
        ### make the turtle move to the clicked point.
        >>> screen.onclick(None)

        ### event-binding will be removed
        N(R(RRRR((s#/usr/lib/python2.6/lib-tk/turtle.pyRJscCsm|djo(||ijo|ii|qYn%||ijo|ii|n|i||dS(sBind fun to key-release event of key.

        Arguments:
        fun -- a function with no arguments
        key -- a string: key (e.g. "a") or key-symbol (e.g. "space")

        In order to be able to register key-events, TurtleScreen
        must have focus. (See method listen.)

        Example (for a TurtleScreen instance named screen
        and a Turtle instance named turtle):

        >>> def f():
                fd(50)
                lt(60)


        >>> screen.onkey(f, "Up")
        >>> screen.listen()

        ### Subsequently the turtle can be moved by
        ### repeatedly pressing the up-arrow key,
        ### consequently drawing a hexagon
        N(RRtremoveRVR(RRR((s#/usr/lib/python2.6/lib-tk/turtle.pyR%s
cCs|idS(sSet focus on TurtleScreen (in order to collect key-events)

        No arguments.
        Dummy arguments are provided in order
        to be able to pass listen to the onclick method.

        Example (for a TurtleScreen instance named screen):
        >>> screen.listen()
        N(R(Rtxdummytydummy((s#/usr/lib/python2.6/lib-tk/turtle.pyREs
icCs|i||dS(sInstall a timer, which calls fun after t milliseconds.

        Arguments:
        fun -- a function with no arguments.
        t -- a number >= 0

        Example (for a TurtleScreen instance named screen):

        >>> running = True
        >>> def f():
                if running:
                        fd(50)
                        lt(60)
                        screen.ontimer(f, 250)

        >>> f()   ### makes the turtle marching around
        >>> running = False
        N(R(RRR((s#/usr/lib/python2.6/lib-tk/turtle.pyRQscCsf|djo|iS||ijo|i||i|<n|i|i|i|||_dS(sESet background image or return name of current backgroundimage.

        Optional argument:
        picname -- a string, name of a gif-file or "nopic".

        If picname is a filename, set the corresponing image as background.
        If picname is "nopic", delete backgroundimage, if present.
        If picname is None, return the filename of the current backgroundimage.

        Example (for a TurtleScreen instance named screen):
        >>> screen.bgpic()
        'nopic'
        >>> screen.bgpic("landscape.gif")
        >>> screen.bgpic()
        'landscape.gif'
        N(RRRRMRR(Rtpicname((s#/usr/lib/python2.6/lib-tk/turtle.pyRfs
cCs|i|||S(sResize the canvas the turtles are drawing on.

        Optional arguments:
        canvwidth -- positive integer, new width of canvas in pixels
        canvheight --  positive integer, new height of canvas in pixels
        bg -- colorstring or color-tupel, new backgroundcolor
        If no arguments are given, return current (canvaswidth, canvasheight)

        Do not alter the drawing window. To observe hidden parts of
        the canvas use the scrollbars. (Can make visible those parts
        of a drawing, which were outside the canvas before!)

        Example (for a Turtle instance named turtle):
        >>> turtle.screensize(2000,1500)
            ### e. g. to search for an erroneously escaped turtle ;-)
        (R(RRRR((s#/usr/lib/python2.6/lib-tk/turtle.pyR~sN($RRRRRRRR.RRR!RRRRRXR$RR#RRR%R'R&RRRJRRRRRRRRR(((s#/usr/lib/python2.6/lib-tk/turtle.pyRs@	"	'$																 t
TNavigatorcBseZdZheddd6eddd6eddd6ZdZdZdZedZd	Z	d%d
ZdZdd
Z
dZdZdZdZdZdZdZdZdZdZdZd%dZdZdZdZd%dZd%dZdZd Z d%d%d!Z!dd"Z"d%d%d#Z#d%d$Z$eZ%eZ&eZ'eZ(eZ)eZ*eZ+eZ,e Z-RS(&sRNavigation part of the RawTurtle.
    Implements methods for turtle movement.
    g?gRRRiicCs[|i|_|i|_||_d|_|id|_|i|t	i
|dS(N(tDEFAULT_ANGLEOFFSETt_angleOffsettDEFAULT_ANGLEORIENTt_angleOrientRRt
undobufferR3RRRX(RR((s#/usr/lib/python2.6/lib-tk/turtle.pyRs		
	
cCs)tdd|_ti|i|_dS(sXreset turtle to its initial values

        Will be overwritten by parent class
        gN(R
t	_positionRtSTART_ORIENTATIONRt_orient(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRXscCsp|djo|iS|d	jodS||_|d
jod|_d|_n|id|_d|_dS(s:Set turtle-mode to 'standard', 'world' or 'logo'.
        RRRNiig@i(sstandardslogosworld(sstandardsworld(RRRRt_fullcircle(RR((s#/usr/lib/python2.6/lib-tk/turtle.pyRs

	
	
cCsD||_d||_|idjo
d|_n|d|_dS(s+Helper function for degrees() and radians()ihRig@N(Rt
_degreesPerAURR(Rt
fullcircle((s#/usr/lib/python2.6/lib-tk/turtle.pyt_setDegreesPerAUs
	

gv@cCs|i|dS(s Set angle measurement units to degrees.

        Optional argument:
        fullcircle -  a number

        Set angle measurement units, i. e. set number
        of 'degrees' for a full circle. Dafault value is
        360 degrees.

        Example (for a Turtle instance named turtle):
        >>> turtle.left(90)
        >>> turtle.heading()
        90
        >>> turtle.degrees(400.0)  # angle measurement in gon
        >>> turtle.heading()
        100

        N(R(RR((s#/usr/lib/python2.6/lib-tk/turtle.pyR3scCs|idtidS(s Set the angle measurement units to radians.

        No arguments.

        Example (for a Turtle instance named turtle):
        >>> turtle.heading()
        90
        >>> turtle.radians()
        >>> turtle.heading()
        1.5707963267948966
        iN(RRR(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRVscCs%|i|i|}|i|dS(s)move turtle forward by specified distanceN(RRt_goto(RR4tende((s#/usr/lib/python2.6/lib-tk/turtle.pyt_goscCs&||i9}|ii||_dS(s=Turn turtle counterclockwise by specified angle if angle > 0.N(RRR(RR((s#/usr/lib/python2.6/lib-tk/turtle.pyt_rotates
cCs
||_dS(smove turtle to position end.N(R(Rtend((s#/usr/lib/python2.6/lib-tk/turtle.pyRscCs|i|dS(sMove the turtle forward by the specified distance.

        Aliases: forward | fd

        Argument:
        distance -- a number (integer or float)

        Move the turtle forward by the specified distance, in the direction
        the turtle is headed.

        Example (for a Turtle instance named turtle):
        >>> turtle.position()
        (0.00, 0.00)
        >>> turtle.forward(25)
        >>> turtle.position()
        (25.00,0.00)
        >>> turtle.forward(-75)
        >>> turtle.position()
        (-50.00,0.00)
        N(R(RR4((s#/usr/lib/python2.6/lib-tk/turtle.pyR<scCs|i|dS(sMove the turtle backward by distance.

        Aliases: back | backward | bk

        Argument:
        distance -- a number

        Move the turtle backward by distance ,opposite to the direction the
        turtle is headed. Do not change the turtle's heading.

        Example (for a Turtle instance named turtle):
        >>> turtle.position()
        (0.00, 0.00)
        >>> turtle.backward(30)
        >>> turtle.position()
        (-30.00, 0.00)
        N(R(RR4((s#/usr/lib/python2.6/lib-tk/turtle.pyR(scCs|i|dS(sTurn turtle right by angle units.

        Aliases: right | rt

        Argument:
        angle -- a number (integer or float)

        Turn turtle right by angle units. (Units are by default degrees,
        but can be set via the degrees() and radians() functions.)
        Angle orientation depends on mode. (See this.)

        Example (for a Turtle instance named turtle):
        >>> turtle.heading()
        22.0
        >>> turtle.right(45)
        >>> turtle.heading()
        337.0
        N(R(RR((s#/usr/lib/python2.6/lib-tk/turtle.pyRW(scCs|i|dS(sTurn turtle left by angle units.

        Aliases: left | lt

        Argument:
        angle -- a number (integer or float)

        Turn turtle left by angle units. (Units are by default degrees,
        but can be set via the degrees() and radians() functions.)
        Angle orientation depends on mode. (See this.)

        Example (for a Turtle instance named turtle):
        >>> turtle.heading()
        22.0
        >>> turtle.left(45)
        >>> turtle.heading()
        67.0
        N(R(RR((s#/usr/lib/python2.6/lib-tk/turtle.pyRH=scCs|iS(sReturn the turtle's current location (x,y), as a Vec2D-vector.

        Aliases: pos | position

        No arguments.

        Example (for a Turtle instance named turtle):
        >>> turtle.pos()
        (0.00, 240.00)
        (R(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRSRscCs|idS(s Return the turtle's x coordinate.

        No arguments.

        Example (for a Turtle instance named turtle):
        >>> reset()
        >>> turtle.left(60)
        >>> turtle.forward(100)
        >>> print turtle.xcor()
        50.0
        i(R(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRr_scCs|idS(s	 Return the turtle's y coordinate
        ---
        No arguments.

        Example (for a Turtle instance named turtle):
        >>> reset()
        >>> turtle.left(60)
        >>> turtle.forward(100)
        >>> print turtle.ycor()
        86.6025403784
        i(R(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRsmscCs>|djo|it|n|it||dS(stMove turtle to an absolute position.

        Aliases: setpos | setposition | goto:

        Arguments:
        x -- a number      or     a pair/vector of numbers
        y -- a number             None

        call: goto(x, y)         # two coordinates
        --or: goto((x, y))       # a pair (tuple) of coordinates
        --or: goto(vec)          # e.g. as returned by pos()

        Move turtle to an absolute position. If the pen is down,
        a line will be drawn. The turtle's orientation does not change.

        Example (for a Turtle instance named turtle):
        >>> tp = turtle.pos()
        >>> tp
        (0.00, 0.00)
        >>> turtle.setpos(60,30)
        >>> turtle.pos()
        (60.00,30.00)
        >>> turtle.setpos((20,80))
        >>> turtle.pos()
        (20.00,80.00)
        >>> turtle.setpos(tp)
        >>> turtle.pos()
        (0.00,0.00)
        N(RRR
(RRR((s#/usr/lib/python2.6/lib-tk/turtle.pyRA|s
cCs!|idd|iddS(s$Move turtle to the origin - coordinates (0,0).

        No arguments.

        Move turtle to the origin - coordinates (0,0) and set its
        heading to its start-orientation (which depends on mode).

        Example (for a Turtle instance named turtle):
        >>> turtle.home()
        iN(RAR\(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRDscCs!|it||iddS(sSet the turtle's first coordinate to x

        Argument:
        x -- a number (integer or float)

        Set the turtle's first coordinate to x, leave second coordinate
        unchanged.

        Example (for a Turtle instance named turtle):
        >>> turtle.position()
        (0.00, 240.00)
        >>> turtle.setx(10)
        >>> turtle.position()
        (10.00, 240.00)
        iN(RR
R(RR((s#/usr/lib/python2.6/lib-tk/turtle.pyRascCs!|it|id|dS(sSet the turtle's second coordinate to y

        Argument:
        y -- a number (integer or float)

        Set the turtle's first coordinate to x, second coordinate remains
        unchanged.

        Example (for a Turtle instance named turtle):
        >>> turtle.position()
        (0.00, 40.00)
        >>> turtle.sety(-10)
        >>> turtle.position()
        (0.00, -10.00)
        iN(RR
R(RR((s#/usr/lib/python2.6/lib-tk/turtle.pyRbscCs|dj	ot||}nt|to
|}n>t|tot|}nt|to
|i}nt||iS(sReturn the distance from the turtle to (x,y) in turtle step units.

        Arguments:
        x -- a number   or  a pair/vector of numbers   or   a turtle instance
        y -- a number       None                            None

        call: distance(x, y)         # two coordinates
        --or: distance((x, y))       # a pair (tuple) of coordinates
        --or: distance(vec)          # e.g. as returned by pos()
        --or: distance(mypen)        # where mypen is another turtle

        Example (for a Turtle instance named turtle):
        >>> turtle.pos()
        (0.00, 0.00)
        >>> turtle.distance(30,40)
        50.0
        >>> pen = Turtle()
        >>> pen.forward(77)
        >>> turtle.distance(pen)
        77.0
        N(RR
RRRRtabs(RRRRS((s#/usr/lib/python2.6/lib-tk/turtle.pyR4s


cCs|dj	ot||}nt|to
|}n>t|tot|}nt|to
|i}n||i\}}tti||dti	dd}||i
:}|i|i||i
S(sCReturn the angle of the line from the turtle's position to (x, y).

        Arguments:
        x -- a number   or  a pair/vector of numbers   or   a turtle instance
        y -- a number       None                            None

        call: distance(x, y)         # two coordinates
        --or: distance((x, y))       # a pair (tuple) of coordinates
        --or: distance(vec)          # e.g. as returned by pos()
        --or: distance(mypen)        # where mypen is another turtle

        Return the angle, between the line from turtle-position to position
        specified by x, y and the turtle's start orientation. (Depends on
        modes - "standard" or "logo")

        Example (for a Turtle instance named turtle):
        >>> turtle.pos()
        (10.00, 10.00)
        >>> turtle.towards(0,0)
        225.0
        gf@i
gv@N(RR
RRRRRRRzRRRRR(RRRRStresult((s#/usr/lib/python2.6/lib-tk/turtle.pyRks


*
cCs_|i\}}tti||dtidd}||i:}|i|i||iS(s Return the turtle's current heading.

        No arguments.

        Example (for a Turtle instance named turtle):
        >>> turtle.left(67)
        >>> turtle.heading()
        67.0
        gf@i
gv@(	RRRRzRRRRR(RRRR((s#/usr/lib/python2.6/lib-tk/turtle.pyRBs
*
cCsK||i|i}|i}||d||d}|i|dS(sSet the orientation of the turtle to to_angle.

        Aliases:  setheading | seth

        Argument:
        to_angle -- a number (integer or float)

        Set the orientation of the turtle to to_angle.
        Here are some common directions in degrees:

         standard - mode:          logo-mode:
        -------------------|--------------------
           0 - east                0 - north
          90 - north              90 - east
         180 - west              180 - south
         270 - south             270 - west

        Example (for a Turtle instance named turtle):
        >>> turtle.setheading(90)
        >>> turtle.heading()
        90
        g@N(RBRRR(Rtto_angleRtfull((s#/usr/lib/python2.6/lib-tk/turtle.pyR\#s	cCs|io#|iidgt|i_n|i}|djo
|i}n|djoBt||i}dtt	dt|dd|}nd||}d|}d|t
i|t
id	|i
}|d
jo|||}}}n|i}	|i}
|d
jo|id
d
n|id
|i|xHt|D]:}|i||i||id
|i|qkW|i||d
jo|i|	|
n|i||iot|i_ndS(s Draw a circle with given radius.

        Arguments:
        radius -- a number
        extent (optional) -- a number
        steps (optional) -- an integer

        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 in clockwise direction. Finally
        the direction of the turtle is changed by the amount of extent.

        As the circle is approximated by an inscribed regular polygon,
        steps determines the number of steps to use. If not given,
        it will be calculated automatically. Maybe used to draw regular
        polygons.

        call: circle(radius)                  # full circle
        --or: circle(radius, extent)          # arc
        --or: circle(radius, extent, steps)
        --or: circle(radius, steps=6)         # 6-sided polygon

        Example (for a Turtle instance named turtle):
        >>> turtle.circle(50)
        >>> turtle.circle(120, 180)  # semicircle
        tseqiig@gM@g?g?g@gf@iN(RRRRRfRRR
RtminRRRRR#RjRRRR(RtradiustextenttstepsRftfracRQtw2tlttrtdlR((s#/usr/lib/python2.6/lib-tk/turtle.pyR-?s@



/
)










cCsdS(s/dummy method - to be overwritten by child classN((RR((s#/usr/lib/python2.6/lib-tk/turtle.pyRfscCsdS(s/dummy method - to be overwritten by child classN((RtaR((s#/usr/lib/python2.6/lib-tk/turtle.pyR#scCsdS(s/dummy method - to be overwritten by child classN((RR((s#/usr/lib/python2.6/lib-tk/turtle.pyRjsN(.RRRR
RtDEFAULT_MODERRRRXRRRR3RVRRRR<R(RWRHRSRrRsRARDRaRbR4RkRBR\R-RfR#RjR9R,R)RZRIRTR]R^R[(((s#/usr/lib/python2.6/lib-tk/turtle.pyRsZ
												
		#			 #		AtTPencBs
eZdZeddZededdZddZddZdZ	d	Z
d
ZddZdZ
d
ZdZdZdZdZddZedZeedZdZdZeZe	Ze	Ze
Ze
ZeZeZ RS(sFDrawing part of the RawTurtle.
    Implements drawing properties.
    RYcCs#||_d|_ti|dS(N(t_resizemodeRRRt_reset(RRY((s#/usr/lib/python2.6/lib-tk/turtle.pyRs		ROR;cCsUd|_t|_||_||_t|_d|_d|_d|_d|_	dS(Niii(ii(
t_pensizeRt_shownt	_pencolort
_fillcolort_drawingt_speedt_stretchfactort_tiltt
_outlinewidth(RROR;((s#/usr/lib/python2.6/lib-tk/turtle.pyRs								cCsF|djo|iS|i}|djo|id|ndS(szSet resizemode to one of the values: "auto", "user", "noresize".

        (Optional) Argument:
        rmode -- one of the strings "auto", "user", "noresize"

        Different resizemodes have the following effects:
          - "auto" adapts the appearance of the turtle
                   corresponding to the value of pensize.
          - "user" adapts the appearance of the turtle according to the
                   values of stretchfactor and outlinewidth (outline),
                   which are set by shapesize()
          - "noresize" no adaption of the turtle's appearance takes place.
        If no argument is given, return current resizemode.
        resizemode("user") is called by a call of shapesize with arguments.


        Examples (for a Turtle instance named turtle):
        >>> turtle.resizemode("noresize")
        >>> turtle.resizemode()
        'noresize'
        tautotuserRRYN(R&R'R(RRRRN(Rtrmode((s#/usr/lib/python2.6/lib-tk/turtle.pyRYs


cCs)|djo|iS|id|dS(sSet or return the line thickness.

        Aliases:  pensize | width

        Argument:
        width -- positive number

        Set the line thickness to width or return it. If resizemode is set
        to "auto" and turtleshape is a polygon, that polygon is drawn with
        the same line thickness. If no argument is given, current pensize
        is returned.

        Example (for a Turtle instance named turtle):
        >>> turtle.pensize()
        1
        turtle.pensize(10)   # from here on lines of width 10 are drawn
        RQN(RRRN(RRp((s#/usr/lib/python2.6/lib-tk/turtle.pyRQs
cCs#|ipdS|idtdS(sPull the pen up -- no drawing when moving.

        Aliases: penup | pu | up

        No argument

        Example (for a Turtle instance named turtle):
        >>> turtle.penup()
        NRP(R!RNR(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRRs

cCs#|iodS|idtdS(sPull the pen down -- drawing when moving.

        Aliases: pendown | pd | down

        No argument.

        Example (for a Turtle instance named turtle):
        >>> turtle.pendown()
        NRP(R!RNR(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRPs

cCs|iS(sReturn True if pen is down, False if it's up.

        No argument.

        Example (for a Turtle instance named turtle):
        >>> turtle.penup()
        >>> turtle.isdown()
        False
        >>> turtle.pendown()
        >>> turtle.isdown()
        True
        (R!(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRFs
cCshdd6dd6dd6dd6d	d
6}|djo|iS||jo||}n;d|jo
djnott|}nd}|id
|dS(s Return or set the turtle's speed.

        Optional argument:
        speed -- an integer in the range 0..10 or a speedstring (see below)

        Set the turtle's speed to an integer value in the range 0 .. 10.
        If no argument is given: return current speed.

        If input is a number greater than 10 or smaller than 0.5,
        speed is set to 0.
        Speedstrings  are mapped to speedvalues in the following way:
            'fastest' :  0
            'fast'    :  10
            'normal'  :  6
            'slow'    :  3
            'slowest' :  1
        speeds from 1 to 10 enforce increasingly faster animation of
        line drawing and turtle turning.

        Attention:
        speed = 0 : *no* animation takes place. forward/back makes turtle jump
        and likewise left/right make the turtle turn instantly.

        Example (for a Turtle instance named turtle):
        >>> turtle.speed(3)
        itfastesti
tfastitnormalitslowitslowestg?g%@RfN(RR"RRRN(RRftspeeds((s#/usr/lib/python2.6/lib-tk/turtle.pyRfs)

cGs|ot|}|djo|d}}n9|djo|\}}n|djo|}}n|i|}|i|}|id|d|n#|i|i|i|ifSdS(sReturn or set the pencolor and fillcolor.

        Arguments:
        Several input formats are allowed.
        They use 0, 1, 2, or 3 arguments as follows:

        color()
            Return the current pencolor and the current fillcolor
            as a pair of color specification strings as are 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))
            equivalent to pencolor(colorstring1) and fillcolor(colorstring2)
            and analogously, if the other input format is used.

        If turtleshape is a polygon, outline and interior of that polygon
        is drawn with the newly set colors.
        For mor info see: pencolor, fillcolor

        Example (for a Turtle instance named turtle):
        >>> turtle.color('red', 'green')
        >>> turtle.color()
        ('red', 'green')
        >>> colormode(255)
        >>> color((40, 80, 120), (160, 200, 240))
        >>> color()
        ('#285078', '#a0c8f0')
        iiiiROR;N(RRRNRRR (RR/Rtpcolortfcolor((s#/usr/lib/python2.6/lib-tk/turtle.pyR2,s 


cGsS|o8|i|}||ijodS|id|n|i|iSdS(sZ Return or set the pencolor.

        Arguments:
        Four input formats are allowed:
          - pencolor()
            Return the current pencolor as color specification string,
            possibly in hex-number format (see example).
            May be used as input to another color/pencolor/fillcolor call.
          - pencolor(colorstring)
            s is a Tk color specification string, such as "red" or "yellow"
          - pencolor((r, g, b))
            *a tuple* of r, g, and b, which represent, an RGB color,
            and each of r, g, and b are in the range 0..colormode,
            where colormode is either 1.0 or 255
          - pencolor(r, g, b)
            r, g, and b represent an RGB color, and each of r, g, and b
            are in the range 0..colormode

        If turtleshape is a polygon, the outline of that polygon is drawn
        with the newly set pencolor.

        Example (for a Turtle instance named turtle):
        >>> turtle.pencolor('brown')
        >>> tup = (0.2, 0.8, 0.55)
        >>> turtle.pencolor(tup)
        >>> turtle.pencolor()
        '#33cc8c'
        NRO(RRRNR(RR/R2((s#/usr/lib/python2.6/lib-tk/turtle.pyROZscGsS|o8|i|}||ijodS|id|n|i|iSdS(s] Return or set the fillcolor.

        Arguments:
        Four input formats are allowed:
          - fillcolor()
            Return the current fillcolor as color specification string,
            possibly in hex-number format (see example).
            May be used as input to another color/pencolor/fillcolor call.
          - fillcolor(colorstring)
            s is a Tk color specification string, such as "red" or "yellow"
          - fillcolor((r, g, b))
            *a tuple* of r, g, and b, which represent, an RGB color,
            and each of r, g, and b are in the range 0..colormode,
            where colormode is either 1.0 or 255
          - fillcolor(r, g, b)
            r, g, and b represent an RGB color, and each of r, g, and b
            are in the range 0..colormode

        If turtleshape is a polygon, the interior of that polygon is drawn
        with the newly set fillcolor.

        Example (for a Turtle instance named turtle):
        >>> turtle.fillcolor('violet')
        >>> col = turtle.pencolor()
        >>> turtle.fillcolor(col)
        >>> turtle.fillcolor(0, .5, 0)
        NR;(RR RNR(RR/R2((s#/usr/lib/python2.6/lib-tk/turtle.pyR;scCs|idtdS(sMakes the turtle visible.

        Aliases: showturtle | st

        No argument.

        Example (for a Turtle instance named turtle):
        >>> turtle.hideturtle()
        >>> turtle.showturtle()
        tshownN(RNR(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRescCs|idtdS(sYMakes the turtle invisible.

        Aliases: hideturtle | ht

        No argument.

        It's a good idea to do this while you're in the
        middle of a complicated drawing, because hiding
        the turtle speeds up the drawing observably.

        Example (for a Turtle instance named turtle):
        >>> turtle.hideturtle()
        R1N(RNR(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRCscCs|iS(sReturn True if the Turtle is shown, False if it's hidden.

        No argument.

        Example (for a Turtle instance named turtle):
        >>> turtle.hideturtle()
        >>> print turtle.isvisible():
        False
        (R(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRGs
c	Kseh
|id6|id6|id6|id6|id6|id6|id6|id6|id	6|i	d
6}|p|p|St
|to
|}nh}|i|h}x|D]}||||<qW|i
o|i
id|fnt}d|jo"|i|djo
t}q(nd|joTt
|dto|i|df|d<n|i|djo
t}qnd|jo"|i|djo
t}qn|o|ind|jo|d|_nd|jo|d|_nd|jo|d|_nd|joCt
|dto|i|df|d<n|d|_nd|jo|d|_nd|jo|d|_nd|jo=|d}t
|ttfo||f}n||_nd	|jo|d	|_nd|jo|d|_nd
|jo|d
|_	n|idS(
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        Arguments:
            pen -- a dictionary with some or all of the below listed keys.
            **pendict -- one or more keyword-arguments with the below
                         listed keys as keywords.

        Return or set the pen's attributes in a 'pen-dictionary'
        with the following key/value pairs:
           "shown"      :   True/False
           "pendown"    :   True/False
           "pencolor"   :   color-string or color-tuple
           "fillcolor"  :   color-string or color-tuple
           "pensize"    :   positive number
           "speed"      :   number in range 0..10
           "resizemode" :   "auto" or "user" or "noresize"
           "stretchfactor": (positive number, positive number)
           "outline"    :   positive number
           "tilt"       :   number

        This dictionary can be used as argument for a subsequent
        pen()-call to restore the former pen-state. Moreover one
        or more of these attributes can be provided as keyword-arguments.
        This can be used to set several pen attributes in one statement.


        Examples (for a Turtle instance named turtle):
        >>> turtle.pen(fillcolor="black", pencolor="red", pensize=10)
        >>> turtle.pen()
        {'pensize': 10, 'shown': True, 'resizemode': 'auto', 'outline': 1,
        'pencolor': 'red', 'pendown': True, 'fillcolor': 'black',
        'stretchfactor': (1,1), 'speed': 3}
        >>> penstate=turtle.pen()
        >>> turtle.color("yellow","")
        >>> turtle.penup()
        >>> turtle.pen()
        {'pensize': 10, 'shown': True, 'resizemode': 'auto', 'outline': 1,
        'pencolor': 'yellow', 'pendown': False, 'fillcolor': '',
        'stretchfactor': (1,1), 'speed': 3}
        >>> p.pen(penstate, fillcolor="green")
        >>> p.pen()
        {'pensize': 10, 'shown': True, 'resizemode': 'auto', 'outline': 1,
        'pencolor': 'red', 'pendown': True, 'fillcolor': 'green',
        'stretchfactor': (1,1), 'speed': 3}
        R1RPROR;RQRfRYt
stretchfactorRSRiRNN(RR!RR RR"RR#R%R$RtdictR%RRRRRRt_newLineRRRh(	RRNtpendictt_pdtpt_p_bufRtnewLinetsf((s#/usr/lib/python2.6/lib-tk/turtle.pyRNs|.



























cCsdS(s/dummy method - to be overwritten by child classN((RtusePos((s#/usr/lib/python2.6/lib-tk/turtle.pyR4A	scCsdS(s/dummy method - to be overwritten by child classN((RRtforced((s#/usr/lib/python2.6/lib-tk/turtle.pyRhC	scCsdS(s/dummy method - to be overwritten by child classN((RR/((s#/usr/lib/python2.6/lib-tk/turtle.pyRE	scCsdS(s/dummy method - to be overwritten by child classN((RR/((s#/usr/lib/python2.6/lib-tk/turtle.pyRG	sN(!RRRRRRRRYRQRRRPRFRfR2ROR;ReRCRGRNRR4RRhRRRpRoRURMR6RgRE(((s#/usr/lib/python2.6/lib-tk/turtle.pyRs8			&	.	%	$	
		u		t_TurtleImagecBs eZdZdZdZRS(s6Helper class: Datatype to store Turtle attributes
    cCs#||_d|_|i|dS(N(RRRt	_setshape(RRt
shapeIndex((s#/usr/lib/python2.6/lib-tk/turtle.pyRW	s		cCs}|i}||_|idjo|i|ijnodS|idjo|i|ijnodS|idjo|i|in6|idjo%x"|iD]}|i|qWn|i|i|_|idjo|i|_ny|idjo |i|idi|_nI|idjo8g}|i|iD]}||iqV~|_ndS(NRRRRI(simagespolygon(	RR?RRRgt_itemRURR(RR?RRfR((s#/usr/lib/python2.6/lib-tk/turtle.pyR>\	s(		++
 (RRRRR>(((s#/usr/lib/python2.6/lib-tk/turtle.pyR=S	s	cBseZdZgZd8edededdZdZdZdZ	dZ
d	Zd
ZdZ
d8d8dZd
ZdZdZdZd8dZd8d8d8dZdZdZdZdZdZdZdZdZd8dZdZdZdZ e!dZ"d8d Z#d!Z$d"Z%d8d#Z&d$Z'e(d%d9d)Z)d*Z*d+Z+d,Z,d-Z-d.Z.e.Z/d/Z0d0Z1d8d1Z2d2d8d3Z3d2d8d4Z4d2d8d5Z5d6Z6d7Z7eZ8RS(:svAnimation part of the RawTurtle.
    Puts RawTurtle upon a TurtleScreen and provides tools for
    its animation.
    RcRRcCst|to
||_nt|to1|tijotii|n||_nt|ttfoXxetiD]$}|i	|jo||_Pq~q~Wt||_tii|int
d||i}ti||i
ti||ii||i|_t|||_d|_t|_d|_|_||_t|_|i|_|ig|_|ig|_g|_ ||_!t"||_#|i$dS(Nsbad cavas argument %s(%Rt_ScreenRRRtscreensRVRRRNRRRRRRRbtdrawingLineItemR=RRt_polyRt
_creatingPolyt	_fillitemt	_fillpathRt_hidden_from_screentcurrentLineItemRtcurrentLineRt
stampItemst_undobuffersizeRRRh(RtcanvasRcRRR((s#/usr/lib/python2.6/lib-tk/turtle.pyRy	sB


			
						cCs<ti|ti||i|i|idS(sDelete the turtle's drawings and restore its default values.

        No argument.
,
        Delete the turtle's drawings from the screen, re-center the turtle
        and set variables to the default values.

        Example (for a Turtle instance named turtle):
        >>> turtle.position()
        (0.00,-22.00)
        >>> turtle.heading()
        100.0
        >>> turtle.reset()
        >>> turtle.position()
        (0.00,0.00)
        >>> turtle.heading()
        0.0
        N(RRXRRt_clearRRh(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRX	s




cCs-|djo
d|_nt||_dS(sSet or disable undobuffer.

        Argument:
        size -- an integer or None

        If size is an integer an empty undobuffer of given size is installed.
        Size gives the maximum number of turtle-actions that can be undone
        by the undo() function.
        If size is None, no undobuffer is present.

        Example (for a Turtle instance named turtle):
        >>> turtle.setundobuffer(42)
        N(RRR(Rtsize((s#/usr/lib/python2.6/lib-tk/turtle.pyR`	s

cCs"|idjodS|iiS(sReturn count of entries in the undobuffer.

        No argument.

        Example (for a Turtle instance named turtle):
        >>> while undobufferentries():
                undo()
        iN(RRR(R((s#/usr/lib/python2.6/lib-tk/turtle.pyRn	s	cCsd|_|_x!|iD]}|ii|qW|ii|_g|_|i	o|ii
|in|ig|_|i|i
|idS(sDelete all of pen's drawingsN(RRFRGRRRgRbRIRJR!RVRR0R`RL(RRf((s#/usr/lib/python2.6/lib-tk/turtle.pyRN	s
	

cCs|i|idS(sgDelete the turtle's drawings from the screen. Do not move turtle.

        No arguments.

        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.

        Examples (for a Turtle instance named turtle):
        >>> turtle.clear()
        N(RNRh(R((s#/usr/lib/python2.6/lib-tk/turtle.pyR.	s
cCsh|ii|iidjodSt|idjo)|ii|i|i|i|indS(Nii(	RRRRRJRdRIRR(R((s#/usr/lib/python2.6/lib-tk/turtle.pyR	s
cCs|i}|idjodS|idjo2|i|i|i|i|inJ|i|idjo/x|iD]}|iqW|indS(s&Perform a Turtle-data update.
        iNi(	RRRRRhRjRRR$(RRR((s#/usr/lib/python2.6/lib-tk/turtle.pyRh	s	




cCs|ii||S(smTurns turtle animation on/off and set delay for update drawings.

        Optional arguments:
        n -- nonnegative  integer
        delay -- nonnegative  integer

        If n is given, only each n-th regular screen update is really performed.
        (Can be used to accelerate the drawing of complex graphics.)
        Second arguments sets delay value (see RawTurtle.delay())

        Example (for a Turtle instance named turtle):
        >>> turtle.tracer(8, 25)
        >>> dist = 2
        >>> for i in range(200):
                turtle.fd(dist)
                turtle.rt(90)
                dist += 2
        (RR#(RtflagR((s#/usr/lib/python2.6/lib-tk/turtle.pyR#
scCs|ii|S(N(RR(RR/((s#/usr/lib/python2.6/lib-tk/turtle.pyR&
scCs|ii|S(N(RR(RR/((s#/usr/lib/python2.6/lib-tk/turtle.pyR)
sc	Cs!t|to|Sy|\}}}Wntdt|nX|iidjoAg}|||fD]}|td|qo~\}}}nd|jo
djno9d|jo
djnod|jo
djnptdt|nd|||fS(s,Convert colortriples to hexstrings.
        sbad color arguments: %sg?go@iisbad color sequence: %ss
#%02x%02x%02x(RRRRRR(RR/RRRRR((s#/usr/lib/python2.6/lib-tk/turtle.pyt_cc,
sAZcCsW|i}|i|i|i}d|_d|_t|}||_||_||_t||ii|_|ii	||i
|iii}|djo|i|i_
n|djo#|i|i
di|i_
nO|djoAg}|i
|iiiD]}||iq~|i_
n|i|_|i|S(sCreate and return a clone of the turtle.

        No argument.

        Create and return a clone of the turtle with same position, heading
        and turtle properties.

        Example (for a Turtle instance named mick):
        mick = Turtle()
        joe = mick.clone()
        RRRIRN(RR4R!RRRR=R?RRVRRRUR@RRRbRIRh(RRRtqtttypeRRf((s#/usr/lib/python2.6/lib-tk/turtle.pyR1;
s,							

#
:
cCs`|djo|iiS||iijotd|n|ii||idS(sSet turtle shape to shape with given name / return current shapename.

        Optional argument:
        name -- a string, which is a valid shapename

        Set turtle shape to shape with given name or, if name is not given,
        return name of current shape.
        Shape with name must exist in the TurtleScreen's shape dictionary.
        Initially there are the following polygon shapes:
        'arrow', 'turtle', 'circle', 'square', 'triangle', 'classic'.
        To learn about how to deal with shapes see Screen-method register_shape.

        Example (for a Turtle instance named turtle):
        >>> turtle.shape()
        'arrow'
        >>> turtle.shape("turtle")
        >>> turtle.shape()
        'turtle'
        sThere is no shape named %sN(RRR?RRRR>Rh(RR((s#/usr/lib/python2.6/lib-tk/turtle.pyRcc
s
cCs||jo|jo
djno |i\}}|||ifS|dj	o-|djo||f}q||f}n.|dj	o|id|f}n
|i}|djo
|i}n|iddd|d|dS(sPSet/return turtle's stretchfactors/outline. Set resizemode to "user".

        Optinonal arguments:
           stretch_wid : positive number
           stretch_len : positive number
           outline  : positive number

        Return or set the pen's attributes x/y-stretchfactors and/or outline.
        Set resizemode to "user".
        If and only if resizemode is set to "user", the turtle will be displayed
        stretched according to its stretchfactors:
        stretch_wid is stretchfactor perpendicular to orientation
        stretch_len is stretchfactor in direction of turtles orientation.
        outline determines the width of the shapes's outline.

        Examples (for a Turtle instance named turtle):
        >>> turtle.resizemode("user")
        >>> turtle.shapesize(5, 5, 12)
        >>> turtle.shapesize(outline=8)
        iRYR'R2RSN(RR#R%RN(Rtstretch_widtstretch_lenRSR2((s#/usr/lib/python2.6/lib-tk/turtle.pyRd~
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cCsK||i|i}|tiddti}|iddd|dS(sZRotate the turtleshape to point in the specified direction

        Optional argument:
        angle -- number

        Rotate the turtleshape to point in the direction specified by angle,
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        heading (direction of movement).


        Examples (for a Turtle instance named turtle):
        >>> turtle.shape("circle")
        >>> turtle.shapesize(5,2)
        >>> turtle.settiltangle(45)
        >>> stamp()
        >>> turtle.fd(50)
        >>> turtle.settiltangle(-45)
        >>> stamp()
        >>> turtle.fd(50)
        gf@iRYR'RiN(RRRRRN(RRRi((s#/usr/lib/python2.6/lib-tk/turtle.pyR_
scCs.|idti|i}||i|iS(sReturn the current tilt-angle.

        No argument.

        Return the current tilt-angle, i. e. the angle between the
        orientation of the turtleshape and the heading of the turtle
        (its direction of movement).

        Examples (for a Turtle instance named turtle):
        >>> turtle.shape("circle")
        >>> turtle.shapesize(5,2)
        >>> turtle.tilt(45)
        >>> turtle.tiltangle()
        >>>
        gf@(R$RRRRR(RRi((s#/usr/lib/python2.6/lib-tk/turtle.pyRj
scCs|i||idS(sRotate the turtleshape by angle.

        Argument:
        angle - a number

        Rotate the turtleshape by angle from its current tilt-angle,
        but do NOT change the turtle's heading (direction of movement).

        Examples (for a Turtle instance named turtle):
        >>> turtle.shape("circle")
        >>> turtle.shapesize(5,2)
        >>> turtle.tilt(30)
        >>> turtle.fd(50)
        >>> turtle.tilt(30)
        >>> turtle.fd(50)
        N(R_Rj(RR((s#/usr/lib/python2.6/lib-tk/turtle.pyRi
scCs|i}|i\}}|i\}}t|||i|i}dt||\}}g}|D]H\}	}
||||	||
|i|||	||
|ifqi~S(slComputes transformed polygon shapes from a shape
        according to current position and heading.
        g?(RRRR
RPROR
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s	cCs|i}|i|ii}|i}|ii}|io|idjo|idjot	|_
|i}|djoz|idjod}|}n
|idjo-t
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|D]!\}}|
||||fq~
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}g}|D]2\}}||||
||
|||fqk~}|i|}|i|i}}|i||d|d	|d
|dtq|djo|i||i|q|d
jo|i\}}|i}xt||D]\}\}}}g}|D]!\}}|||||fqp~}|i|}|i||d|i|d	|i|d
|dtqPWqn|i
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dS(spManages the correct rendering of the turtle with respect to
        its shape, resizemode, stretch and tilt etc.iRRiR&g@R'R:RSRpR\RRNRRI(ii(ii(ii(ii(ii(ii(RRRR?RR@RRRRRHRRtmaxRR#R%R$RRR|RZR RR^RRRtzipRQ(RRRcRSttitemttshapeRQtlxtlyRjRRRtt0tt1RtfctocRfRR((s#/usr/lib/python2.6/lib-tk/turtle.pyR
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5F

	5(

#

'cCs-|i}|i|ii}|i}|i}|djo|i}|idjod}|}n
|idjo-td|i	d}}|i	}d}	n6|idjo%|i
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||
|||fq8~}|i|}|i|i}}|i||d|d	|d
|dtnC|djo)|id
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|djog}x'|D]}|i}|i|qWt|}|i
\}}|i}xt||D]\}\}}}g}|D]!\}}|||||fq~}|i|}|i||d|i|d	|i|d
|dtqhWn|ii||iid|f|S(sStamp a copy of the turtleshape onto the canvas and return its id.

        No argument.

        Stamp a copy of the turtle shape onto the canvas at the current
        turtle position. Return a stamp_id for that stamp, which can be
        used to delete it by calling clearstamp(stamp_id).

        Example (for a Turtle instance named turtle):
        >>> turtle.color("blue")
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        13
        >>> turtle.fd(50)
        RRiR&g@iR'R:RSRpR\RRRRh(RRRR?RRRURR[RR#R%R$RRR|RZR RR^RRRRRVRR\RQRKRR(RRRcRSR^tstitemRQR_R`RjRRRRaRbRRcRdtelementRfRR((s#/usr/lib/python2.6/lib-tk/turtle.pyRh&sZ			

	
	
5F

	5$cCs||ijoYt|to%x2|D]}|ii|q'Wn|ii||ii|nd|f}|i}||ijodS|ii|}|ii|||i	jo|i	d|i
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        RhNi(
RKRRRRgRRRtindexRRtinsertR(RtstampidtsubitemRftbufRg((s#/usr/lib/python2.6/lib-tk/turtle.pyt_clearstampbs 	cCs|i||idS(sDDelete stamp with given stampid

        Argument:
        stampid - an integer, must be return value of previous stamp() call.

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        N(RlRh(RRi((s#/usr/lib/python2.6/lib-tk/turtle.pyR/xs
cCsr|djo|i}n,|djo|i| }n|i|}x|D]}|i|qMW|idS(sDelete all or first/last n of turtle's stamps.

        Optional argument:
        n -- an integer

        If n is None, delete all of pen's stamps,
        else if n > 0 delete first n stamps
        else if n < 0 delete last n stamps.

        Example (for a Turtle instance named turtle):
        >>> for i in range(8):
                turtle.stamp(); turtle.fd(30)
        ...
        >>> turtle.clearstamps(2)
        >>> turtle.clearstamps(-2)
        >>> turtle.clearstamps()
        iN(RRKRlRh(RRttoDeleteRf((s#/usr/lib/python2.6/lib-tk/turtle.pyR0s


cCsy|i|i|it|itf}|i}d|i|||i|i	|i
|i|iff}|io|ii
|n|i}|io?|idjo/||}|d|id|d|id}dt|ddd|i|i}|d|}	xtd|D]w}
|
djo
t}nt}||	|
|_|io/|i|i||if|i|i|n|iq&W|io,|i|iddfd	d
d|iqn|io|i	i|nt|ito|ii|n||_|io|ii|nt|i	djo|in|id
S(sMove the pen to the point end, thereby drawing a line
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|i}t|i|djo	dGHn|
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o0|idjo ||}|d|id	|d|i
d	}dt|dd
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t}nt}||||_|o)|i|i||if|||n|iqW|o)|i|iddfddd|qln||_|ioQt|idjo|iin|igjot|_d|_qn|	oG|igjod|_d
GHq|idj	o|iiqn|idS(s)Reverse a _goto. Used for undo()
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			cCs|io |iid||ifn||i9}|ii|}|ii}|djo|idjood|i}dtt	||}d||}x7t
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	cCst|idjoN|ii|i|i|i|i|ii|_|ii	|in|ii|idt
g|_|o|ig|_ndS(sCloses current line item and starts a new one.
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        iR\N(RRJRRdRIRRRbRRVRR(RR;((s#/usr/lib/python2.6/lib-tk/turtle.pyR4+s	cCs}t|it}|djo|S|i}d}}|oOt|idjo5|ii|i|id|id|if}qn|oQ|ii	|_|i
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jo|ii|qo|iid||gn|idS(sCall fill(True) before drawing a shape to fill, fill(False) when done.

        Optional argument:
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        Call fill(True) before drawing the shape you want to fill,
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        Example (for a Turtle instance named turtle):
        >>> turtle.fill(True)
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        iR:tdofillt	beginfillRN(((((RRGRRRRR^RFR RURRVRR4RRRh(RRPR}Rtentry1tentry2((s#/usr/lib/python2.6/lib-tk/turtle.pyR:;s2
	





cCs|itdS(sCalled just before drawing a shape to be filled.

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        >>> turtle.left(90)
        >>> turtle.forward(100)
        >>> turtle.left(90)
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        N(R:R(R((s#/usr/lib/python2.6/lib-tk/turtle.pyR*nscCs|itdS(sFill the shape drawn after the call begin_fill().

        No argument.

        Example (for a Turtle instance named turtle):
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        >>> turtle.left(90)
        >>> turtle.forward(100)
        >>> turtle.left(90)
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        N(R:R(R((s#/usr/lib/python2.6/lib-tk/turtle.pyR7scGs|pst|ttfo,|i|}|it|id}q|i}|p|it|id}qn:|djo|it|id}n|i|}t|i	doS|i	i
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        it_dotR5RR&iN(RRRRRR[RRthasattrRRRRRVRRRNRRRYRERPRQROR<R(RROR2RfRN((s#/usr/lib/python2.6/lib-tk/turtle.pyR5s:	!






cCsb|ii|i||||i\}}|ii||io|iid|fn|S(s)Performs the writing for write()
        twri(RR~RRRRVRR(RRxRyRvRfR	((s#/usr/lib/python2.6/lib-tk/turtle.pyR~s
RHtArialiR+cCs|io#|iidgt|i_n|it||i|}|o&|i\}}|i||n|iot	|i_ndS(sWrite text at the current turtle position.

        Arguments:
        arg -- info, which is to be written to the TurtleScreen
        move (optional) -- True/False
        align (optional) -- one of the strings "left", "center" or right"
        font (optional) -- a triple (fontname, fontsize, fonttype)

        Write text - the string representation of arg - at the current
        turtle position according to align ("left", "center" or right")
        and with the given font.
        If move is True, the pen is moved to the bottom-right corner
        of the text. By default, move is False.

        Example (for a Turtle instance named turtle):
        >>> turtle.write('Home = ', True, align="center")
        >>> turtle.write((0,0), True)
        RN(
RRRRR~RRRSR]R(RtargtmoveRyRvR	RR((s#/usr/lib/python2.6/lib-tk/turtle.pyRqs
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        No argument.

        Start recording the vertices of a polygon. Current turtle position
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        Example (for a Turtle instance named turtle):
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        N(RRDRRE(R((s#/usr/lib/python2.6/lib-tk/turtle.pyR+scCs
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        No argument.

        Stop recording the vertices of a polygon. Current turtle position is
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        Example (for a Turtle instance named turtle):
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        N(RRE(R((s#/usr/lib/python2.6/lib-tk/turtle.pyR8scCs"|idj	ot|iSdS(sReturn the lastly recorded polygon.

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        Example (for a Turtle instance named turtle):
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cCs|iS(sReturn the TurtleScreen object, the turtle is drawing  on.

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        Return the TurtleScreen object, the turtle is drawing  on.
        So TurtleScreen-methods can be called for that object.

        Example (for a Turtle instance named turtle):
        >>> ts = turtle.getscreen()
        >>> ts
        <turtle.TurtleScreen object at 0x0106B770>
        >>> ts.bgcolor("pink")
        (R(R((s#/usr/lib/python2.6/lib-tk/turtle.pyR?
scCs|S(sUReturn the Turtleobject itself.

        No argument.

        Only reasonable use: as a function to return the 'anonymous turtle':

        Example:
        >>> pet = getturtle()
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        <turtle.Turtle object at 0x0187D810>
        >>> turtles()
        [<turtle.Turtle object at 0x0187D810>]
        ((R((s#/usr/lib/python2.6/lib-tk/turtle.pyR@$
scCs|iidS(s Returns the width of the turtle window.

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        Example (for a TurtleScreen instance named screen):
        >>> screen.window_width()
        640
        i(RR(R((s#/usr/lib/python2.6/lib-tk/turtle.pyR'<
s	cCs|iidS(s Return the height of the turtle window.

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        Example (for a TurtleScreen instance named screen):
        >>> screen.window_height()
        480
        i(RR(R((s#/usr/lib/python2.6/lib-tk/turtle.pyR&G
s	cCs|ii|S(sDSet delay value which determines speed of turtle animation.
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sicCs-|ii|ii||||idS(sBind fun to mouse-click event on this turtle on canvas.

        Arguments:
        fun --  a function with two arguments, to which will be assigned
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        num --  number of the mouse-button defaults to 1 (left mouse button).
        add --  True or False. If True, new binding will be added, otherwise
                it will replace a former binding.

        Example for the anonymous turtle, i. e. the procedural way:

        >>> def turn(x, y):
                left(360)

        >>> onclick(turn) # Now clicking into the turtle will turn it.
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scCs-|ii|ii||||idS(sBind fun to mouse-button-release event on this turtle on canvas.

        Arguments:
        fun -- a function with two arguments, to which will be assigned
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        num --  number of the mouse-button defaults to 1 (left mouse button).

        Example (for a MyTurtle instance named joe):
        >>> class MyTurtle(Turtle):
                def glow(self,x,y):
                        self.fillcolor("red")
                def unglow(self,x,y):
                        self.fillcolor("")

        >>> joe = MyTurtle()
        >>> joe.onclick(joe.glow)
        >>> joe.onrelease(joe.unglow)
        ### clicking on joe turns fillcolor red,
        ### unclicking turns it to transparent.
        N(RRRR@Rh(RRRR((s#/usr/lib/python2.6/lib-tk/turtle.pyRLn
scCs#|ii|ii|||dS(sBind fun to mouse-move event on this turtle on canvas.

        Arguments:
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        Every sequence of mouse-move-events on a turtle is preceded by a
        mouse-click event on that turtle.

        Example (for a Turtle instance named turtle):
        >>> turtle.ondrag(turtle.goto)

        ### Subsequently clicking and dragging a Turtle will
        ### move it across the screen thereby producing handdrawings
        ### (if pen is down).
        N(RRRR@(RRRR((s#/usr/lib/python2.6/lib-tk/turtle.pyRK
scCs|idjodS|djo8|\}}|i|||i|ii}nB|djo|d}|i|n|djo|i|n|djo.|d}|ii||i	i
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cCs|idjodS|ii}|d}|d}|djo7xD|o(|i}|i|d|dqHWn|i||dS(sundo (repeatedly) the last turtle action.

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        undo (repeatedly) the last turtle action.
        Number of available undo actions is determined by the size of
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        >>> for i in range(8):
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!N(Risnormal(9RRRRBRRRRXR`RnRNR.RRhR#RRRQR1RcRdR_RjRiRZRRhRlR/R0RRRRR4R:R*R7R5R~RRqR+R8R=R?R@R>R'R&RjRJRLRKRRmRl(((s#/usr/lib/python2.6/lib-tk/turtle.pyRr	sl%			
								(&					7	<			5	A	3		3	
		
	
						cCs'tidjott_ntiS(sReturn the singleton screen object.
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RpRRRcCst|idpdS|ii}|ii}t|to,d|jo
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        height: as integer the height in pixels, as float a fraction of the
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        startx: if positive, starting position in pixels from the left
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        starty: if positive, starting position in pixels from the top
          edge of the screen, if negative from the bottom edge
          Default, starty=None is to center window vertically.

        Examples (for a Screen instance named screen):
        >>> screen.setup (width=200, height=200, startx=0, starty=0)

        sets window to 200x200 pixels, in upper left of screen

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        Bind bye() method to mouseclick on TurtleScreen.
        If "using_IDLE" - value in configuration dictionary is False
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        If IDLE with -n switch (no subprocess) is used, this value should be
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        This is a method of the Screen-class and not available for
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        Example (for a Screen instance named screen):
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        csidS(s&Screen.bye() with two dummy-parametersN(R(RR(R(s#/usr/lib/python2.6/lib-tk/turtle.pytexitGracefully^sRNi(RJRRvtAttributeErrortexit(RR((Rs#/usr/lib/python2.6/lib-tk/turtle.pyRKs
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    When a Turtle object is created or a function derived from some
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cCsndh|id6}t|}|i}x;|D]3}y||t|i_Wq3d|GHq3Xq3WdS(sRead in docstrings from lang-specific docstring dictionary.

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