Simplifying Regular Expression Using Python: Learn RegEx Like Never Before by Zohaib Hasan & Abhishek Singh

Author:Zohaib Hasan & Abhishek Singh
Language: eng
Format: mobi, epub
ISBN: 9781094777979
Publisher: Independently published
Published: 2019-04-19T19:00:00+00:00

I gave the input string stark. It’s a match. Let’s analyze \w more. \w is equivalent to [a-zA-Z0-9]. What does this mean? We have seen this [a-zA-Z] in the last chapter. What if I write my password in all uppercase?

It’s working. What if I give a password containing only digits?

Again it worked. What if I write a password containing characters in upper and lower case and digits also?

This is also working cool. We have not played with the code at all. We have only changed the password. And every time it’s working correctly. So, what is the power of \w? \w is a combination of lowercase characters [a-z], uppercase characters [A-Z] and numeric values [0-9]. And, collectively it is equivalent to [a-zA-Z0-9]. That’s a powerful special sequence to use. What about any special character?

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