find last instance of character in string python code example

Example 1: how to find the last occurrence of a character in a string in python

original_string = "sentence one. sentence two. sentence three"

last_char_index = original_string.rfind(".")
new_string = original_string[:last_char_index] + "," + original_string
print(new_string)
"sentence one. sententce two, sentence three"

Example 2: how to get last element of string in python

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