A command to return the maximum index of a list or array - the better len

[vbrozik (Václav Brožík)]

I do not think adding another function/method/property would be useful. Anyway there a use-case for the last index value from a recent discussion. It is removal of a_list list items in-place based on a condition:

a_last_index = len(a_list) - 1
for reversed_index, item in enumerate(a_list[::-1]):
    if item[-1].startswith('X1:'):
        del a_list[a_last_index - reversed_index]

The original post where is some context (unrelated to this discussion):

List Comprehension as Compulsory Functional Style

Ok, it was me, who recently pointed out that comprehensions should not be misused as an alternative way how to write a for loop. I will try to show my main arguments: Readability I would format the comprehension this way for readability: [ a_list.pop(len(a_list) - 1 - i) for i, ss in enumerate(a_list[::-1]) if ss[-1].startswith('X1:')] It is still a very complex piece of code: iteration in reverse, using iteration index, modifying the length of the original list, computing with …