Glossary

Every key term from the course, in one searchable place — use the search bar above to jump straight to a definition.

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API → related lesson: A defined way for one piece of software to talk to another — for example, requesting data from a website's server.
Argument → related lesson: The actual value you pass into a function when calling it, e.g. the 5 in add(5, 3).
Attribute → related lesson: A piece of data stored on an object, accessed with dot notation, e.g. dog.name.

Class → related lesson: A blueprint for creating objects, defining their attributes and methods.
Comprehension → related lesson: A compact syntax for building a new list, dict, or set from an existing iterable in one line.
CRUD → related lesson: Shorthand for the four basic database operations: Create, Read, Update, Delete.

Decorator → related lesson: A function that wraps another function to add behavior, applied with @decorator syntax.
Dictionary → related lesson: An unordered collection of key → value pairs, looked up by key.

Exception → related lesson: An error condition raised during execution that can be caught and handled with try/except.

Function → related lesson: A named, reusable block of code that can accept inputs and return an output.

Generator → related lesson: A function using yield that produces values one at a time, on demand, instead of all at once.

Immutable → related lesson: Describes a value that cannot be changed after creation, like a string or tuple.
Inheritance → related lesson: A mechanism where a class (subclass) reuses and extends the attributes/methods of another class (superclass).
Integer → related lesson: A whole number, positive or negative, with no decimal point.
Iterable → related lesson: Any object you can loop over with a for loop — lists, strings, dictionaries, generators, and more.
Iterator → related lesson: An object that produces the next value in a sequence each time next() is called on it.

List → related lesson: An ordered, changeable (mutable) collection of values.

Method → related lesson: A function defined inside a class, called on an object using dot notation, e.g. my_list.append(3).
Module → related lesson: A single .py file containing Python code that can be imported and reused elsewhere.
Mutable → related lesson: Describes a value that can be changed after creation, like a list or dictionary.

Package → related lesson: A folder of related modules, usually containing an __init__.py file.
Parameter → related lesson: The named placeholder in a function's definition that will receive an argument, e.g. name in def greet(name).
Polymorphism → related lesson: The ability for different classes to respond to the same method call in their own way.

Recursion → related lesson: A function that calls itself, usually with a smaller input, until it reaches a base case.

Scope → related lesson: The region of code where a particular variable name is visible and usable — local vs. global.
Set → related lesson: An unordered collection of unique, unindexed values.
String → related lesson: A sequence of characters representing text, written in quotes.

Tuple → related lesson: An ordered, unchangeable (immutable) collection of values.