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Python – Kth word replace in String

  • Last Updated : 29 Dec, 2019

Sometimes, while working with String list, we can have a problem in which we need to replace the most Kth word of string. This problem has many application in web development domain. Let’s discuss a way in which this problem can be solved.

Method : Using split() + join()
This is way in which we can perform this task. In this, we break elements into parts and then return the Kth value and perform the addition of new element using join().




# Python3 code to demonstrate working of
# Kth word replace in String
# using split() + join()
  
# initializing string 
test_str = "GFG is good"
  
# printing original string 
print("The original string is : " + test_str)
  
# initializing replace string 
rep_str = "best"
  
# initializing K 
K = 1 
  
# Kth word replace in String
# using split() + join()
temp = test_str.split(' ')
res = " ".join(temp[: K]  + [rep_str] + temp[K + 1 :])
  
# printing result
print("The String after performing replace : " + res)
Output :
The original string is : GFG is good
The String after performing replace : GFG best good

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