freeCodeCamp/curriculum/challenges/english/07-scientific-computing-with-python/python-for-everybody/regular-expressions.english.md

---
id: 5e7b9f0b0b6c005b0e76f06e
title: Regular Expressions
challengeType: 11
isRequired: true
videoId: Yud_COr6pZo
---

## Description
<section id='description'>

</section>

## Tests
<section id='tests'>

```yml
question:
  text: |
    Which regex matches only a white space character?

  answers:
    - |
        \S
    - |
        \s
    - |
        .
    - |
        \_
    - |
        \\.
  solution: 2
```

</section>
feat(learn): add python video challenges (#38424) 2020-04-06 14:49:56 -04:00			`---`
			`id: 5e7b9f0b0b6c005b0e76f06e`
fix: rename titles for better UX 2020-04-21 23:37:02 -05:00			`title: Regular Expressions`
feat(learn): add python video challenges (#38424) 2020-04-06 14:49:56 -04:00			`challengeType: 11`
			`isRequired: true`
			`videoId: Yud_COr6pZo`
			`---`

			`## Description`
			`<section id='description'>`

			`</section>`

			`## Tests`
			`<section id='tests'>`

			```yml
			`question:`
fix(curriculum): python for everybody (#38953) * fix: dictionaries and loops * fix: dictionaries common applications * fix: intermediate strings * fix: introduction elements of python * fix: networking using urllib in python * fix: objects a sample class * fix: python dictionaries * fix: python lists * fix: strings and lists * fix: web services xml * fix: refactor python questions to md * fix: refactor questions to md * fix: remove extra word Removed unnecessary word is * fix: add code blocks to answers Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> * fix: format python code Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> 2020-05-31 13:57:09 +01:00			`text: \|`
fix(curriculum): add clarification to question and escape backslash (#38951) * fix: add clarification to question * fix: adjust word placement Adjust word placement in python for everybody curriculum Co-authored-by: Tom <20648924+moT01@users.noreply.github.com> Co-authored-by: Tom <20648924+moT01@users.noreply.github.com> 2020-06-02 08:27:51 +01:00			`Which regex matches only a white space character?`
fix(curriculum): python for everybody (#38953) * fix: dictionaries and loops * fix: dictionaries common applications * fix: intermediate strings * fix: introduction elements of python * fix: networking using urllib in python * fix: objects a sample class * fix: python dictionaries * fix: python lists * fix: strings and lists * fix: web services xml * fix: refactor python questions to md * fix: refactor questions to md * fix: remove extra word Removed unnecessary word is * fix: add code blocks to answers Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> * fix: format python code Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> 2020-05-31 13:57:09 +01:00
feat(learn): add python video challenges (#38424) 2020-04-06 14:49:56 -04:00			`answers:`
fix(curriculum): python for everybody (#38953) * fix: dictionaries and loops * fix: dictionaries common applications * fix: intermediate strings * fix: introduction elements of python * fix: networking using urllib in python * fix: objects a sample class * fix: python dictionaries * fix: python lists * fix: strings and lists * fix: web services xml * fix: refactor python questions to md * fix: refactor questions to md * fix: remove extra word Removed unnecessary word is * fix: add code blocks to answers Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> * fix: format python code Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> 2020-05-31 13:57:09 +01:00			`- \|`
			`\S`
			`- \|`
			`\s`
			`- \|`
			`.`
			`- \|`
			`\_`
			`- \|`
			`\\.`
feat(learn): add python video challenges (#38424) 2020-04-06 14:49:56 -04:00			`solution: 2`
			```

			`</section>`