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w3schools lists tutorials; half of the functions they use don't seem to work?

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The index(), count() and other "functions" you mention aren't standalone functions, they are methods of lists. That means you apply them to the list, like this: test = [1, 2, 3, 4, 5, 6] print(test.index(3)) # print index in list of the element of value 3 The list methods are described in the documentation . Answer from Deleted User on reddit.com

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Python - List Methods

Python has a set of built-in methods that you can use on lists. ... If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail: sales@w3schools.com

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w3schools.com › python › python_ref_functions.asp

Python Built-in Functions

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Python Lists and Arrays

Python lists come with several built-in algorithms (called methods), to perform common operations like appending, sorting, and more.

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Python - List Comprehension

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Python List Methods. Lessons for beginners. W3Schools in English

Python - List Methods. Python has a set of built-in methods that you can use on lists. Examples. Lessons for beginners. W3Schools in English

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Python - Add List Items

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reddit.com › r/learnpython › w3schools lists tutorials; half of the functions they use don't seem to work?

r/learnpython on Reddit: w3schools lists tutorials; half of the functions they use don't seem to work?

October 2, 2023 -

Total newbie here. Just been doing some basic exercises and I think the site I'm using is missing some advice, but its such a basic problem I've had no luck googling.

https://www.w3schools.com/python/python_lists.asp

Here they have a list of functions for working with lists; "index()"; "count()"; etc. and implies that these are "built in". However my Python install (3.11.5) doesn't have them as core. I assume I just need to import a module but w3 doesn't tell me which module to import.

Am I right? If so which module is it? I assume its really basic common knowledge.

Thanks x

The index(), count() and other "functions" you mention aren't standalone functions, they are methods of lists. That means you apply them to the list, like this: test = [1, 2, 3, 4, 5, 6] print(test.index(3)) # print index in list of the element of value 3 The list methods are described in the documentation .

Can you mention explicitly what you've done and how Python reacts? I have 3.11.5, and the builtin list functions you've mentioned work just fine. >>> b = ['apple', 'banana', 'apple', 'cherry'] >>> b.count('apple') 2 >>> b.index('banana') 1

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Python - Access List Items

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Python Tutorial

Test your Python skills with a quiz. ... Note: This is an optional feature. You can study at W3Schools without creating an account. You will also find complete function and method references: Reference Overview Built-in Functions String Methods List / Array Methods Dictionary Methods Tuple ...

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Python List/Array Methods

Python has a set of built-in methods that you can use on lists/arrays. Note: Python does not have built-in support for Arrays, but Python Lists can be used instead. Learn more about lists in our Python Lists Tutorial. Learn more about arrays in our Python Arrays Tutorial. ... If you want to use W3Schools ...

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Python list() Function

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Python Array Methods

Python has a set of built-in methods that you can use on lists/arrays. Note: Python does not have built-in support for Arrays, but Python Lists can be used instead. Python Array Tutorial Array What is an Array Access Arrays Array Length Looping Array Elements Add Array Element Remove Array Element ... If you want to use W3Schools ...

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Python String Methods

Remove List Duplicates Reverse a String Add Two Numbers · Python Examples Python Compiler Python Exercises Python Quiz Python Challenges Python Server Python Syllabus Python Study Plan Python Interview Q&A Python Bootcamp Python Certificate Python Training ... Python has a set of built-in methods that you can use on strings.

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Python - Loop Lists

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Python List methods - GeeksforGeeks

In this article, we’ll explore all Python list methods with a simple example.

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w3schoolsua.github.io › python › python_lists_en.html

Python Lists. Lessons for beginners. W3Schools in English

Python Lists. List Items. Ordered. Changeable. Allow Duplicates. List Length. List Items - Data Types. type(). The list() Constructor. Python Collections (Arrays). Examples. Lessons for beginners. W3Schools in English

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Python - Copy Lists

Python Examples Python Compiler Python Exercises Python Quiz Python Challenges Python Server Python Syllabus Python Study Plan Python Interview Q&A Python Bootcamp Python Certificate Python Training ... You cannot copy a list simply by typing list2 = list1, because: list2 will only be a reference to list1, and changes made in list1 will automatically also be made in list2. You can use the built-in List method copy() to copy a list. ... Another way to make a copy is to use the built-in method list(). ... You can also make a copy of a list by using the : (slice) operator. ... If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail: sales@w3schools.com

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Python - Change List Items

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Python Examples

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