[Python-Dev] Adding start to enumerate() (original) (raw)

Brett Cannon brett at python.org
Mon May 12 01:59:48 CEST 2008

On Sun, May 11, 2008 at 4:42 PM, Steven D'Aprano <steve at pearwood.info> wrote:

On Mon, 12 May 2008 08:20:51 am Georg Brandl wrote:

I believe the following is a common use-case for enumerate() (at least, I've used it quite some times):

for lineno, line in enumerate(fileobject): ... For this, it would be nice to have a start parameter for enumerate(). Why would it be nice? What would you use it for? The only thing I can think of is printing lines with line numbers, and starting those line numbers at one instead of zero. If that's the only use-case, should it require built-in support?

It's a common enough use-case, so I think it makes sense. With the cost being so minimal to add support I think this one use-case alone is enough to justify adding the support.

-Brett

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