arrays - How to get the last number from list in python -

this question has answer here:

suppose have list

a = [0.0021, 0.12, 0.1224, 0.22]

i have extract last number above list, answer should 0.22 without using a[3], because number of elements in list keep changing.

you're talking list. arrays in python numpy.arrays. different data structure.

you can achieve want this:

>>> array = [0.0021, 0.12, 0.1224, 0.22] >>> array[-1] 0.22 >>>

negative indexing starts @ end of list, array[-1] last element in list, array[-2] second last , forth.

Sp