getting the index while iterating through a list

[Peter Otten]

Fernando Rodríguez wrote:

> While iterating through a list I'd like to know not just the current
> element, but also its index. Is there a better way than this:
> 
> i = 0
> newList = []
> for element in aList:
>   newList.append((i, element))
>   i += 1
> 
> Is there a more elegant way of doing this with for? And with map()?

>>> aList = ["alpha", "beta", "gamma"]
>>> list(enumerate(aList))
[(0, 'alpha'), (1, 'beta'), (2, 'gamma')]
>>>

Peter