"[EMAIL PROTECTED]" wrote: > when you use a = a + 'world' python sees it as an error because of > different type. > > But when you use a += 'world' > python will change the right into list (because a is a list).
"changing into a list" is a bit misleadning; to bit a bit more precise,
you may want to change that to
python will treat the right as a sequence
</F>
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