Python: Do a case-insensitive string replacement

Last update on March 31 2025 12:57:16 (UTC/GMT +8 hours)

44. Case-insensitive Replace

Write a Python program to do case-insensitive string replacement.

Sample Solution:

Python Code:

import re
text = "PHP Exercises"
print("Original Text: ",text)
redata = re.compile(re.escape('php'), re.IGNORECASE)
new_text = redata.sub('php', 'PHP Exercises')
print("Using 'php' replace PHP") 
print("New Text: ",new_text)

Sample Output:

Original Text:  PHP Exercises
Using 'php' replace PHP
New Text:  php Exercises

Pictorial Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to replace a target substring in a string without regard to case.
• Write a Python script to perform a case-insensitive search and replace of a word in a given text.
• Write a Python program to replace all occurrences of a substring regardless of case and then print the modified string.
• Write a Python function to implement case-insensitive string replacement using regex flags.

Python Code Editor:

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