What are split(), sub(), and subn() methods in Python?

These methods belong to Python RegEx ‘re’ module and are used to modify strings.

• split(): This method is used to split a given string into a list.
• sub(): This method is used to find a substring where a regex pattern matches, and then it replaces the matched substring with a different string.
• subn(): This method is similar to the sub() method, but it returns the new string, along with the number of replacements.

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