get last column of matrix in python code example

Example 1: python how to get the last element in a list

some_list = [1, 2, 3]
some_list[-1]
print(some_list)
#Output = 3

Example 2: how to get a row from a dataframe in python

df.iloc[[index]]

Example 3: how to get last dimension of an array python

slice = myarray[:,:,i]