The caret^. when found at the start of a character set, is the equivalent to "not" in RegEx. The regular expression [^a-c] matches any characters except "a", "b" and "c". Write the regular expression that matches any characters except letters, digits and spaces. You must use a negated character set in your expression. Examples txt = " alice15@gmail.com " pattern = "yourregularexpressionhere" re.findall(pattern, txt) → ["@", "-"] Notes • You don't need to write a function, just the pattern. • Do not remove import re from the code. • Find more info on RegEx and negation in Resources. • You can find all the challenges of this series in my Basic RegEx collection.

The caret^. when found at the start of a character set, is the equivalent to "not" in RegEx. The regular expression [^a-c] matches any characters except "a", "b" and "c". Write the regular expression that matches any characters except letters, digits and spaces. You must use a negated character set in your expression. Examples txt = " alice15@gmail.com " pattern = "yourregularexpressionhere" re.findall(pattern, txt) → ["@", "-"] Notes • You don't need to write a function, just the pattern. • Do not remove import re from the code. • Find more info on RegEx and negation in Resources. • You can find all the challenges of this series in my Basic RegEx collection.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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