Question

How to replace the last occurrence of characters from a string in Python

Answer 1

def replace_last(source, replace, new_s):
    first_part, to_remove, last_part = source.rpartition(replace)

    print("first_part = " + first_part)  # debug
    print("to_remove = " + to_remove)  # debug
    print("last_part = " + last_part)  # debug

    return first_part + new_s + last_part

s = "python c++ c c# java"

new_s = replace_last(s, 'v', 'X')

print(new_s)

'''
run:

first_part = python c++ c c# ja
to_remove = v
last_part = a
python c++ c c# jaXa

'''

 

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