Can I use index information inside the map function?

Question

Let\'s assume there is a list a = [1, 3, 5, 6, 8].

I want to apply some transformation on that list and I want to avoid doing it sequentially, so someth

Answer 1

To extend Martijn Pieters' excellent answer, you could also use list comprehensions in combination with enumerate:

>>> a = [1, 3, 5, 6, 8]
>>> [i * v for i, v in enumerate(a)]
[0, 3, 10, 18, 32]

or

[mapfunction(i, v) for i, v in enumerate(a)]

I feel list comprehensions are often more readable than map/lambda constructs. When using a named mapping function that accepts the (i, v) tuple directly, map probably wins though.