[Python-Dev] best practices stdlib: purging xrange (original) (raw)

"Martin v. Löwis" martin at v.loewis.de
Wed May 9 06:46:50 CEST 2007

Just curious why 2to3 would not replace range() with list(range())?

In most usages of range(), using the 3.0 range() will work just as well, and be more efficient.

If I wanted to write code that works in both versions (which I understand is not the 2to3 objective), then I would use range(). If I worry about creating a list in 2.x, I would write

try: xrange except NameError: xrange=range

at the top of the file.

Regards, Martin

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