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ActivePython 2.5 documentation
3.6.3 XRange Type
The xrange type is an immutable sequence which
is commonly used for looping. The advantage of the xrange
type is that an xrange object will always take the same amount
of memory, no matter the size of the range it represents. There are
no consistent performance advantages.
XRange objects have very little behavior: they only support indexing,
iteration, and the len() function.
Release 2.5.2, documentation updated on 21th February, 2008.
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