pickling and unpickling on the same file?

[Nathan Froyd]

Is there any way to implement the above beast? Something like:

p = Pickler(file)
u = Unpickler(file)

file.seek(random_pos)
x = u.load()

z = [7, 8, 9]
p.dump(z)

would be perfect
-- 
Nathan | nathan.froyd at rose-hulman.edu | http://www.rose-hulman.edu/~froydnj/
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