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Python - replace last n characters in string

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Created by:
Mark-Rotteveel
267

In this article, we would like to show you how to replace last n characters in string in Python.

Quick solution:

text = "ABC"

size = len(text)    # text length
n = 2               # number of characters to replace
replacement = "XY"  # replace with this

text = text.replace(text[size - n:], replacement)

print("String after: ", text)  # AXY

 

Practical example

In this example, we use replace() method to replace last 2 characters in text string.

text = "ABC"

print("String before:", text)

size = len(text)    # text length
n = 2               # number of characters to replace
replacement = "XY"  # replace with this

text = text.replace(text[size - n:], replacement)

print("String after: ", text)   # AXY

Output:

String before: ABC
String after:  AXY

Note:

Number of characters to replace (n) and number of characters in replacement don't have to be the same.

Python - string (popular problems)

Python - replace last n characters in string
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