[pygtk] treemodel problems

[Christopher Cole]

hey all, i'm confused as to why the following code doesn't work,
this seems like the most basic thing you could do for a treeview,
yet i don't see any text from my model being displayed when it's run:

#!/usr/bin/python
import gtk
win = gtk.Window()

model = gtk.TreeStore(str,str,str,str)
iter = model.insert_before(None, None)
model.set_value(iter,0,'this')
model.set_value(iter,1,'should')
model.set_value(iter,2,'probably')
model.set_value(iter,3,'work')

view = gtk.TreeView(model)
cols = [ ' Date ', ' Time ', ' Event Type ', ' Message ']

renderer = gtk.CellRendererText()
for i in cols:
    view.append_column(gtk.TreeViewColumn(i, renderer))

win.add(view)
win.show_all()
gtk.main()

any ideas?? i'm totally confused

--Chris Cole