A Comprehensive Guide of Regular Expressions using Python

What is a regular expression? A Regular expression, also known as RegEx, is a unique sequence of characters that helps to match or find a set of strings, a word, a letter, or even a number. We can accomplish this by using a special syntax followed by a pattern. The're' python module is similar to'Perl'-like regular expressions in python. These expressions completely function on special symbols as each of these symbols have their meaning.