Making Our Virtual Assistant with Python | Regular Expressions(Regexes) in Python| Part-3

Working on Regular Expressions
Regular Expressions or regexes are a special sequence of characters that defines a pattern for complex string-matching functionality. Regular Expressions are essentially a tiny, highly specialized programming language embedded inside Python and made available through the re module.

Using this little language, you specify the rules for the set of possible strings that you want to match; this set might contain English sentences, or e-mail addresses, or TeX commands, or anything you like. You can also use REs to modify a string or to split it apart in various ways.

Regexes have appeared in many programming languages, editors, and other tools as a means of determining whether a string matches a specified pattern. Python, Java, and Perl all support regex functionality, as do most Unix tools and many text editors.

In this video, we will understand the Importance of Regular Expressions and various functions in the re module and the usage of Sequence, Meta Characters.

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