What is regular expression in python?

Python

Could someone tell me what is Regular Expression in Python?

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A regular expression in Python refers to the set of strings that matches it, the functionality is to check if any particular string matches with the given expression. The regular expressions can be concatenated to form new regular expressions. In general, if A and B are regular expressions, then AB is also said to be a regular expression. The regular expression included both ordinary and special characters.

 
 

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