Python 3.1.1 (r311:74543, Aug 24 2009, 18:44:04) 
[GCC 4.0.1 (Apple Inc. build 5493)] on darwin
Type "copyright", "credits" or "license()" for more information.
>>> ================================ RESTART ================================
>>> 
>>> drawLS('F-F++F-F
       
SyntaxError: EOL while scanning string literal (<pyshell#0>, line 1)
>>> t = Turtle()
>>> drawLS(t, 'F-F++F-F', 60, 20)
>>> kochRules = {'F':'F-F++F-F'}
>>> applyProduction('F', kochRules, 0)
'F'
>>> applyProduction('F', kochRules, 1)
'F-F++F-F'
>>> applyProduction('F', kochRules, 2)
'F-F++F-F-F-F++F-F++F-F++F-F-F-F++F-F'
>>> applyProduction('F', kochRules, 3)
'F-F++F-F-F-F++F-F++F-F++F-F-F-F++F-F-F-F++F-F-F-F++F-F++F-F++F-F-F-F++F-F++F-F++F-F-F-F++F-F++F-F++F-F-F-F++F-F-F-F++F-F-F-F++F-F++F-F++F-F-F-F++F-F'
>>> kochRules.get('F', 'nothing')
'F-F++F-F'
>>> kochRules.get('+', 'nothing')
'nothing'
>>> kochRules.get('+', '+')
'+'
>>> t.exitOnClick()
>>> lsystem('F', kochRules, 4, (0,0), 0, 60, 5)
>>> lsystem('F', kochRules, 4, (-300,0), 0, 30, 5)
>>> lsystem('F++F++F', kochRules, 4, (-300,200), 0, 60, 0)
Traceback (most recent call last):
  File "<pyshell#14>", line 1, in <module>
    lsystem('F++F++F', kochRules, 4, (-300,200), 0, 60, 0)
  File "/Users/gustavus/Desktop/lsystem.py", line 52, in lsystem
    drawLS(aTurtle,instructions,angle,length)
  File "/Users/gustavus/Desktop/lsystem.py", line 28, in drawLS
    aTurtle.left(angle)
  File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/site-packages/cTurtle.py", line 1223, in left
    checkargs((int, float))
  File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/site-packages/cTurtle.py", line 2302, in _rotate
    self._orient = neworient
  File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/site-packages/cTurtle.py", line 2085, in _update
    for t in screen._turtles:
  File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/site-packages/cTurtle.py", line 2224, in _drawturtle
    np = (self._position[0]*xscale, self._position[1]*yscale)
  File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/site-packages/cTurtle.py", line 526, in _drawimage
    (x, y) = xxx_todo_changeme
  File "<string>", line 1, in coords
  File "/Library/Frameworks/Python.framework/Versions/3.1/lib/python3.1/tkinter/__init__.py", line 2120, in coords
    self.tk.call((self._w, 'coords') + args)))
_tkinter.TclError: invalid command name ".17607184"
>>> lsystem('F++F++F', kochRules, 0, (-300,200), 0, 60, 5)
>>> lsystem('F++F++F', kochRules, 3, (-300,200), 0, 60, 5)
>>> aRules = {'F':'F-F++F-F+F--F'}
>>> aRules = {'F':'F-F++F-F+F--F+F'}
>>> lsystem('F', aRules, 1, (-300,0), 0, 30, 5)
>>> lsystem('F', aRules, 1, (-300,0), 0, 60, 50)
>>> lsystem('F', aRules, 3, (-300,0), 0, 60, 6)
>>> cRules={'F':'-F++F-'}
>>> lsystem('F', aRules, 3, (0,-200), 90, 45, 6)
>>> lsystem('F', cRules, 3, (0,-200), 90, 45, 6)
>>> lsystem('F', cRules, 8, (0,-200), 90, 45, 6)
>>> dRules={'F':'', 'L':'-FL++FR-', 'R':'+FL--FR+'}
>>> lsystem('F', dRules, 8, (0,-200), 90, 45, 6)
>>> lsystem('FR', dRules, 8, (0,-200), 90, 45, 6)
>>> lsystem('FL', dRules, 8, (0,-200), 90, 45, 6)
>>>