How to replace a substring with a regex pattern using regex in python?

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import re

# Define the string
text = "Hello, World!"

# Define the regex pattern to match the substring you want to replace
pattern = "World"

# Define the regex pattern you want to replace with
replacement = "Universe"

# Use the re.sub() function to replace the substring with the regex pattern
new_text = re.sub(pattern, replacement, text)

# Print the new text
print(new_text)

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Hello, Universe!