Some people, when confronted with a problem, think, "I know, I'll use regular expressions." Now they have two problems. - Jamie Zawinski
In today's videos I will teach you the 80/20 you need to know about Python's re (regular expression) module. It's a powerful skill to add to your Python toolkit, however I will also show you when not to use them.
I recommend reading 10 Tips to Get More out of Your Regexes and watch Al Sweigart's PyCon talk: Yes, It's Time to Learn Regular Expressions.
If you still have time check out Kuchling's Regular Expression HOWTO.
The best way to learn though is to get practical: try to write some regexes interactively using an online tool like regex101.
Take Bite 2. Regex Fun on our platform. It lets you write 3 regexes.
Do you prefer to work on your desktop? Maybe you can try blog challenge 42 - Mastering Regular Expressions which is similar but lets you solve 6 regex problems!
B. More fun: wget or request.get your favorite site and use regex on the output to parse out data (fun trivia: a similar exercise is where our code challenges started).
Good luck and remember: Keep calm and code in Python!
Be sure to share your last couple of days work on Twitter or Facebook. Use the hashtag #100DaysOfCode.
Here are some examples to inspire you. Consider including @talkpython and @pybites in your tweets.
See a mistake in these instructions? Please submit a new issue or fix it and submit a PR.