collective behaviour of canvas in Tkinter

[T.Rafie at ALCATEL.de]

If one wants to move a single canvas item, say item, on a base canvas
base one can move it
using  base.move(item, stepx, stepy) . I  want to shift a collection of
items  (item1,item2,...) by
the same amount (stepx,stepy). The only solution i found was using a
loop over all items
(or alternatively use  map one time).  But it became very slow for a
large collection - a few thousend.
Is there a possibility to bind them together, acting as a collective (as
one could imagine that
all letters in a text-canvas-item are bound together and the text-canvas
can be moved as
one picture)?



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