the second unpacking is not working with print, what is the reason?
for a in stok.iteritems():
... c, b = a
... print c, b
this one is valid
but this one is not
for a in stok.iteritems():
... print c, b = a
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The reason is that
c, b = ais a statement and not an expression (i.e., it does something, but doesn’t have a value) and therefore you can’t print it.