how to get last character of string in py code example

Example 1: check strings last letter python

sample_str = 'Sample String'
# Get last character of string i.e. char at index position -1
last_char = sample_str[-1]
 
print('Last character : ', last_char)
# Output
Last charater : g

Example 2: last character of string in python

a = '123456789'

#to get last char, acess index -1
print(a[-1])

#this works the same as:
print(a[len(a)-1])

#instead of 1, subtract n to get string's nth char from last
#let n = 4
print(a[-4])

#result:
9
9
6