remove stuff

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diff --git a/sys/src/cmd/python/Demo/tkinter/guido/solitaire.py b/sys/src/cmd/python/Demo/tkinter/guido/solitaire.py
deleted file mode 100755
index 50a8b2643..000000000
--- a/sys/src/cmd/python/Demo/tkinter/guido/solitaire.py
+++ /dev/null
@@ -1,637 +0,0 @@
-#! /usr/bin/env python
-
-"""Solitaire game, much like the one that comes with MS Windows.
-
-Limitations:
-
-- No cute graphical images for the playing cards faces or backs.
-- No scoring or timer.
-- No undo.
-- No option to turn 3 cards at a time.
-- No keyboard shortcuts.
-- Less fancy animation when you win.
-- The determination of which stack you drag to is more relaxed.
-
-Apology:
-
-I'm not much of a card player, so my terminology in these comments may
-at times be a little unusual.  If you have suggestions, please let me
-know!
-
-"""
-
-# Imports
-
-import math
-import random
-
-from Tkinter import *
-from Canvas import Rectangle, CanvasText, Group, Window
-
-
-# Fix a bug in Canvas.Group as distributed in Python 1.4.  The
-# distributed bind() method is broken.  Rather than asking you to fix
-# the source, we fix it here by deriving a subclass:
-
-class Group(Group):
-    def bind(self, sequence=None, command=None):
-        return self.canvas.tag_bind(self.id, sequence, command)
-
-
-# Constants determining the size and lay-out of cards and stacks.  We
-# work in a "grid" where each card/stack is surrounded by MARGIN
-# pixels of space on each side, so adjacent stacks are separated by
-# 2*MARGIN pixels.  OFFSET is the offset used for displaying the
-# face down cards in the row stacks.
-
-CARDWIDTH = 100
-CARDHEIGHT = 150
-MARGIN = 10
-XSPACING = CARDWIDTH + 2*MARGIN
-YSPACING = CARDHEIGHT + 4*MARGIN
-OFFSET = 5
-
-# The background color, green to look like a playing table.  The
-# standard green is way too bright, and dark green is way to dark, so
-# we use something in between.  (There are a few more colors that
-# could be customized, but they are less controversial.)
-
-BACKGROUND = '#070'
-
-
-# Suits and colors.  The values of the symbolic suit names are the
-# strings used to display them (you change these and VALNAMES to
-# internationalize the game).  The COLOR dictionary maps suit names to
-# colors (red and black) which must be Tk color names.  The keys() of
-# the COLOR dictionary conveniently provides us with a list of all
-# suits (in arbitrary order).
-
-HEARTS = 'Heart'
-DIAMONDS = 'Diamond'
-CLUBS = 'Club'
-SPADES = 'Spade'
-
-RED = 'red'
-BLACK = 'black'
-
-COLOR = {}
-for s in (HEARTS, DIAMONDS):
-    COLOR[s] = RED
-for s in (CLUBS, SPADES):
-    COLOR[s] = BLACK
-
-ALLSUITS = COLOR.keys()
-NSUITS = len(ALLSUITS)
-
-
-# Card values are 1-13.  We also define symbolic names for the picture
-# cards.  ALLVALUES is a list of all card values.
-
-ACE = 1
-JACK = 11
-QUEEN = 12
-KING = 13
-ALLVALUES = range(1, 14) # (one more than the highest value)
-NVALUES = len(ALLVALUES)
-
-
-# VALNAMES is a list that maps a card value to string.  It contains a
-# dummy element at index 0 so it can be indexed directly with the card
-# value.
-
-VALNAMES = ["", "A"] + map(str, range(2, 11)) + ["J", "Q", "K"]
-
-
-# Solitaire constants.  The only one I can think of is the number of
-# row stacks.
-
-NROWS = 7
-
-
-# The rest of the program consists of class definitions.  These are
-# further described in their documentation strings.
-
-
-class Card:
-
-    """A playing card.
-
-    A card doesn't record to which stack it belongs; only the stack
-    records this (it turns out that we always know this from the
-    context, and this saves a ``double update'' with potential for
-    inconsistencies).
-
-    Public methods:
-
-    moveto(x, y) -- move the card to an absolute position
-    moveby(dx, dy) -- move the card by a relative offset
-    tkraise() -- raise the card to the top of its stack
-    showface(), showback() -- turn the card face up or down & raise it
-
-    Public read-only instance variables:
-
-    suit, value, color -- the card's suit, value and color
-    face_shown -- true when the card is shown face up, else false
-
-    Semi-public read-only instance variables (XXX should be made
-    private):
-
-    group -- the Canvas.Group representing the card
-    x, y -- the position of the card's top left corner
-
-    Private instance variables:
-
-    __back, __rect, __text -- the canvas items making up the card
-
-    (To show the card face up, the text item is placed in front of
-    rect and the back is placed behind it.  To show it face down, this
-    is reversed.  The card is created face down.)
-
-    """
-
-    def __init__(self, suit, value, canvas):
-        """Card constructor.
-
-        Arguments are the card's suit and value, and the canvas widget.
-
-        The card is created at position (0, 0), with its face down
-        (adding it to a stack will position it according to that
-        stack's rules).
-
-        """
-        self.suit = suit
-        self.value = value
-        self.color = COLOR[suit]
-        self.face_shown = 0
-
-        self.x = self.y = 0
-        self.group = Group(canvas)
-
-        text = "%s  %s" % (VALNAMES[value], suit)
-        self.__text = CanvasText(canvas, CARDWIDTH/2, 0,
-                               anchor=N, fill=self.color, text=text)
-        self.group.addtag_withtag(self.__text)
-
-        self.__rect = Rectangle(canvas, 0, 0, CARDWIDTH, CARDHEIGHT,
-                              outline='black', fill='white')
-        self.group.addtag_withtag(self.__rect)
-
-        self.__back = Rectangle(canvas, MARGIN, MARGIN,
-                              CARDWIDTH-MARGIN, CARDHEIGHT-MARGIN,
-                              outline='black', fill='blue')
-        self.group.addtag_withtag(self.__back)
-
-    def __repr__(self):
-        """Return a string for debug print statements."""
-        return "Card(%r, %r)" % (self.suit, self.value)
-
-    def moveto(self, x, y):
-        """Move the card to absolute position (x, y)."""
-        self.moveby(x - self.x, y - self.y)
-
-    def moveby(self, dx, dy):
-        """Move the card by (dx, dy)."""
-        self.x = self.x + dx
-        self.y = self.y + dy
-        self.group.move(dx, dy)
-
-    def tkraise(self):
-        """Raise the card above all other objects in its canvas."""
-        self.group.tkraise()
-
-    def showface(self):
-        """Turn the card's face up."""
-        self.tkraise()
-        self.__rect.tkraise()
-        self.__text.tkraise()
-        self.face_shown = 1
-
-    def showback(self):
-        """Turn the card's face down."""
-        self.tkraise()
-        self.__rect.tkraise()
-        self.__back.tkraise()
-        self.face_shown = 0
-
-
-class Stack:
-
-    """A generic stack of cards.
-
-    This is used as a base class for all other stacks (e.g. the deck,
-    the suit stacks, and the row stacks).
-
-    Public methods:
-
-    add(card) -- add a card to the stack
-    delete(card) -- delete a card from the stack
-    showtop() -- show the top card (if any) face up
-    deal() -- delete and return the top card, or None if empty
-
-    Method that subclasses may override:
-
-    position(card) -- move the card to its proper (x, y) position
-
-        The default position() method places all cards at the stack's
-        own (x, y) position.
-
-    userclickhandler(), userdoubleclickhandler() -- called to do
-    subclass specific things on single and double clicks
-
-        The default user (single) click handler shows the top card
-        face up.  The default user double click handler calls the user
-        single click handler.
-
-    usermovehandler(cards) -- called to complete a subpile move
-
-        The default user move handler moves all moved cards back to
-        their original position (by calling the position() method).
-
-    Private methods:
-
-    clickhandler(event), doubleclickhandler(event),
-    motionhandler(event), releasehandler(event) -- event handlers
-
-        The default event handlers turn the top card of the stack with
-        its face up on a (single or double) click, and also support
-        moving a subpile around.
-
-    startmoving(event) -- begin a move operation
-    finishmoving() -- finish a move operation
-
-    """
-
-    def __init__(self, x, y, game=None):
-        """Stack constructor.
-
-        Arguments are the stack's nominal x and y position (the top
-        left corner of the first card placed in the stack), and the
-        game object (which is used to get the canvas; subclasses use
-        the game object to find other stacks).
-
-        """
-        self.x = x
-        self.y = y
-        self.game = game
-        self.cards = []
-        self.group = Group(self.game.canvas)
-        self.group.bind('<1>', self.clickhandler)
-        self.group.bind('<Double-1>', self.doubleclickhandler)
-        self.group.bind('<B1-Motion>', self.motionhandler)
-        self.group.bind('<ButtonRelease-1>', self.releasehandler)
-        self.makebottom()
-
-    def makebottom(self):
-        pass
-
-    def __repr__(self):
-        """Return a string for debug print statements."""
-        return "%s(%d, %d)" % (self.__class__.__name__, self.x, self.y)
-
-    # Public methods
-
-    def add(self, card):
-        self.cards.append(card)
-        card.tkraise()
-        self.position(card)
-        self.group.addtag_withtag(card.group)
-
-    def delete(self, card):
-        self.cards.remove(card)
-        card.group.dtag(self.group)
-
-    def showtop(self):
-        if self.cards:
-            self.cards[-1].showface()
-
-    def deal(self):
-        if not self.cards:
-            return None
-        card = self.cards[-1]
-        self.delete(card)
-        return card
-
-    # Subclass overridable methods
-
-    def position(self, card):
-        card.moveto(self.x, self.y)
-
-    def userclickhandler(self):
-        self.showtop()
-
-    def userdoubleclickhandler(self):
-        self.userclickhandler()
-
-    def usermovehandler(self, cards):
-        for card in cards:
-            self.position(card)
-
-    # Event handlers
-
-    def clickhandler(self, event):
-        self.finishmoving()             # In case we lost an event
-        self.userclickhandler()
-        self.startmoving(event)
-
-    def motionhandler(self, event):
-        self.keepmoving(event)
-
-    def releasehandler(self, event):
-        self.keepmoving(event)
-        self.finishmoving()
-
-    def doubleclickhandler(self, event):
-        self.finishmoving()             # In case we lost an event
-        self.userdoubleclickhandler()
-        self.startmoving(event)
-
-    # Move internals
-
-    moving = None
-
-    def startmoving(self, event):
-        self.moving = None
-        tags = self.game.canvas.gettags('current')
-        for i in range(len(self.cards)):
-            card = self.cards[i]
-            if card.group.tag in tags:
-                break
-        else:
-            return
-        if not card.face_shown:
-            return
-        self.moving = self.cards[i:]
-        self.lastx = event.x
-        self.lasty = event.y
-        for card in self.moving:
-            card.tkraise()
-
-    def keepmoving(self, event):
-        if not self.moving:
-            return
-        dx = event.x - self.lastx
-        dy = event.y - self.lasty
-        self.lastx = event.x
-        self.lasty = event.y
-        if dx or dy:
-            for card in self.moving:
-                card.moveby(dx, dy)
-
-    def finishmoving(self):
-        cards = self.moving
-        self.moving = None
-        if cards:
-            self.usermovehandler(cards)
-
-
-class Deck(Stack):
-
-    """The deck is a stack with support for shuffling.
-
-    New methods:
-
-    fill() -- create the playing cards
-    shuffle() -- shuffle the playing cards
-
-    A single click moves the top card to the game's open deck and
-    moves it face up; if we're out of cards, it moves the open deck
-    back to the deck.
-
-    """
-
-    def makebottom(self):
-        bottom = Rectangle(self.game.canvas,
-                           self.x, self.y,
-                           self.x+CARDWIDTH, self.y+CARDHEIGHT,
-                           outline='black', fill=BACKGROUND)
-        self.group.addtag_withtag(bottom)
-
-    def fill(self):
-        for suit in ALLSUITS:
-            for value in ALLVALUES:
-                self.add(Card(suit, value, self.game.canvas))
-
-    def shuffle(self):
-        n = len(self.cards)
-        newcards = []
-        for i in randperm(n):
-            newcards.append(self.cards[i])
-        self.cards = newcards
-
-    def userclickhandler(self):
-        opendeck = self.game.opendeck
-        card = self.deal()
-        if not card:
-            while 1:
-                card = opendeck.deal()
-                if not card:
-                    break
-                self.add(card)
-                card.showback()
-        else:
-            self.game.opendeck.add(card)
-            card.showface()
-
-
-def randperm(n):
-    """Function returning a random permutation of range(n)."""
-    r = range(n)
-    x = []
-    while r:
-        i = random.choice(r)
-        x.append(i)
-        r.remove(i)
-    return x
-
-
-class OpenStack(Stack):
-
-    def acceptable(self, cards):
-        return 0
-
-    def usermovehandler(self, cards):
-        card = cards[0]
-        stack = self.game.closeststack(card)
-        if not stack or stack is self or not stack.acceptable(cards):
-            Stack.usermovehandler(self, cards)
-        else:
-            for card in cards:
-                self.delete(card)
-                stack.add(card)
-            self.game.wincheck()
-
-    def userdoubleclickhandler(self):
-        if not self.cards:
-            return
-        card = self.cards[-1]
-        if not card.face_shown:
-            self.userclickhandler()
-            return
-        for s in self.game.suits:
-            if s.acceptable([card]):
-                self.delete(card)
-                s.add(card)
-                self.game.wincheck()
-                break
-
-
-class SuitStack(OpenStack):
-
-    def makebottom(self):
-        bottom = Rectangle(self.game.canvas,
-                           self.x, self.y,
-                           self.x+CARDWIDTH, self.y+CARDHEIGHT,
-                           outline='black', fill='')
-
-    def userclickhandler(self):
-        pass
-
-    def userdoubleclickhandler(self):
-        pass
-
-    def acceptable(self, cards):
-        if len(cards) != 1:
-            return 0
-        card = cards[0]
-        if not self.cards:
-            return card.value == ACE
-        topcard = self.cards[-1]
-        return card.suit == topcard.suit and card.value == topcard.value + 1
-
-
-class RowStack(OpenStack):
-
-    def acceptable(self, cards):
-        card = cards[0]
-        if not self.cards:
-            return card.value == KING
-        topcard = self.cards[-1]
-        if not topcard.face_shown:
-            return 0
-        return card.color != topcard.color and card.value == topcard.value - 1
-
-    def position(self, card):
-        y = self.y
-        for c in self.cards:
-            if c == card:
-                break
-            if c.face_shown:
-                y = y + 2*MARGIN
-            else:
-                y = y + OFFSET
-        card.moveto(self.x, y)
-
-
-class Solitaire:
-
-    def __init__(self, master):
-        self.master = master
-
-        self.canvas = Canvas(self.master,
-                             background=BACKGROUND,
-                             highlightthickness=0,
-                             width=NROWS*XSPACING,
-                             height=3*YSPACING + 20 + MARGIN)
-        self.canvas.pack(fill=BOTH, expand=TRUE)
-
-        self.dealbutton = Button(self.canvas,
-                                 text="Deal",
-                                 highlightthickness=0,
-                                 background=BACKGROUND,
-                                 activebackground="green",
-                                 command=self.deal)
-        Window(self.canvas, MARGIN, 3*YSPACING + 20,
-               window=self.dealbutton, anchor=SW)
-
-        x = MARGIN
-        y = MARGIN
-
-        self.deck = Deck(x, y, self)
-
-        x = x + XSPACING
-        self.opendeck = OpenStack(x, y, self)
-
-        x = x + XSPACING
-        self.suits = []
-        for i in range(NSUITS):
-            x = x + XSPACING
-            self.suits.append(SuitStack(x, y, self))
-
-        x = MARGIN
-        y = y + YSPACING
-
-        self.rows = []
-        for i in range(NROWS):
-            self.rows.append(RowStack(x, y, self))
-            x = x + XSPACING
-
-        self.openstacks = [self.opendeck] + self.suits + self.rows
-
-        self.deck.fill()
-        self.deal()
-
-    def wincheck(self):
-        for s in self.suits:
-            if len(s.cards) != NVALUES:
-                return
-        self.win()
-        self.deal()
-
-    def win(self):
-        """Stupid animation when you win."""
-        cards = []
-        for s in self.openstacks:
-            cards = cards + s.cards
-        while cards:
-            card = random.choice(cards)
-            cards.remove(card)
-            self.animatedmoveto(card, self.deck)
-
-    def animatedmoveto(self, card, dest):
-        for i in range(10, 0, -1):
-            dx, dy = (dest.x-card.x)/i, (dest.y-card.y)/i
-            card.moveby(dx, dy)
-            self.master.update_idletasks()
-
-    def closeststack(self, card):
-        closest = None
-        cdist = 999999999
-        # Since we only compare distances,
-        # we don't bother to take the square root.
-        for stack in self.openstacks:
-            dist = (stack.x - card.x)**2 + (stack.y - card.y)**2
-            if dist < cdist:
-                closest = stack
-                cdist = dist
-        return closest
-
-    def deal(self):
-        self.reset()
-        self.deck.shuffle()
-        for i in range(NROWS):
-            for r in self.rows[i:]:
-                card = self.deck.deal()
-                r.add(card)
-        for r in self.rows:
-            r.showtop()
-
-    def reset(self):
-        for stack in self.openstacks:
-            while 1:
-                card = stack.deal()
-                if not card:
-                    break
-                self.deck.add(card)
-                card.showback()
-
-
-# Main function, run when invoked as a stand-alone Python program.
-
-def main():
-    root = Tk()
-    game = Solitaire(root)
-    root.protocol('WM_DELETE_WINDOW', root.quit)
-    root.mainloop()
-
-if __name__ == '__main__':
-    main()