Deleting items from Tix Tree

hi
iam using Tix tree widget in my python script. how can i delete the
entire tree. i tried the following

self.msgTree = Tix.Tree(self.msgWin)
self.msgTree.hlist.delete()

but it thorws the following error

self.msgTree.hlist.delete()
File "/usr/local/lib/python2.2/lib-tk/Tix.py", line 320, in
__getattr__
raise AttributeError, name
AttributeError: delete


can some one help me

thanks
Anil

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