list index out of range python meaning code example

Example 1: expect out of range in pytnhon

try:
    gotdata = dlist[1]
except IndexError:
    gotdata = 'null'

Example 2: list index out of range

def sort_list(l):
    l=list(l)
    for i in l:
        if l[i]<=l[i+1]:
            return True
        else:
            return False