enumerated while loop

[Roald de Vries]

On Jan 23, 2010, at 3:50 PM, Grant Edwards wrote:

> On 2010-01-23, Roald de Vries <rdv at roalddevries.nl> wrote:
>> Dear all,
>>
>> I sometimes want to use an infinite while loop with access to the  
>> loop
>> index, like this:
>>
>> def naturals():
>>     i = 0
>>     while True:
>>     yield i
>>     y += 1
>>
>> for i in naturals():
>>     print(i)
>>
>> I assume a function like 'naturals' already exists, or a similar
>> construction for the same purpose. But what is it called?
>
> xrange(), except that you need to provde an upper limit.

I'm sorry, Grant, but you exactly miss my point ;-). The essence of  
this is that it's endless.