Python tcl is not installed properly

I just installed graphics.py for python. But when I tried to run the following code: ``` from graphics import * def main(): win = GraphWin("My Circle", 100, 100) c = Circle(Point(50,50), 10) c.draw(win) win.getMouse() # Pause to view result win.close() # Close window when done main() ``` my interpreter gave me this strange information: ``` Traceback (most recent call last): File "F:\CS 101\Python\projects\packer.py", line 8, in <module> from graphics import * File "F:\CS 101\Python\lib\site-packages\graphics.py", line 168, in <module> _root = tk.Tk() File "F:\CS 101\Python\lib\tkinter\__init__.py", line 1674, in __init__ self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) _tkinter.TclError: Can't find a usable init.tcl in the following directories: {F:\CS 101\Python\tcl\tcl8.5.9} {F:/CS 101/Python/tcl/tcl8.5} {F:/CS 101/Python/lib/tcl8.5} {F:/CS 101/lib/tcl8.5} F:/lib/tcl8.5 {F:/CS 101/library} F:/library F:/tcl8.5.2/library F:/tcl8.5.2/library F:/CS 101/Python/tcl/tcl8.5/init.tcl: version conflict for package "Tcl": have 8.5.2, need exactly 8.5.9 version conflict for package "Tcl": have 8.5.2, need exactly 8.5.9 while executing "package require -exact Tcl 8.5.9" (file "F:/CS 101/Python/tcl/tcl8.5/init.tcl" line 20) invoked from within "source {F:/CS 101/Python/tcl/tcl8.5/init.tcl}" ("uplevel" body line 1) invoked from within "uplevel #0 [list source $tclfile]" ``` This probably means that Tcl wasn't installed properly. What does it mean? What can I do? PS: I am using Eclipse (PyDev) for coding.