What is Python?

A short introduction to the Python programming language.

Installing Python

A quick-start guide to getting Python up-and-running on your machine.

Hello World

Building and running your first Python program.

Printing

Examining values at any time with the Python print function.

Integers

Representing whole numbers in Python with integers.

Addition

Add two numbers together with the Python addition operator.

Subtraction

Subtracting one number from another with the Python subtraction operator.

Multiplication

Multiply two numbers together with the Python multiplication operator.

Integer Division

Dividing one integer by another with the Python integer division operator.

Remainders

Finding the remainder from dividing one integer by another with the Python remainder operator.

Combining and Grouping Operators

Python order-of-operations and grouping operators with parentheses.

Floats

Representing non-whole, very small, and very large numbers in Python with floating-point numbers.

Float Operators

Performing arithmetic with floating-point numbers.

Division

Divide one number by another with the Python addition operator.

Exponents

Raise one number to any power with the Python exponentiation operator.

Mixing Ints and Floats

Working with integer and floating-point numbers together.

Strings

Store, manipulate, and display text with Python strings.

String Concatenation

Gluing two strings back-to-back with the Python string concatenation operator.

Indexing and Finding in Strings

Getting string characters by-position and finding positions of characters.

String Slicing

Getting part of a string with Python string slicing.

String Cleaning

Cleaning strings with Python built-in string functions.

Booleans

Representing on/off, yes/no, and true/false values with Python booleans.

Checking Strings

Checking the contents of strings with Python operators and built-in string-checking functions.

And Operator

Checking if multiple things are true with the logical "and" operator.

Or Operator

Checking if at least one thing is true with the logical "or" operator.

Not Operator

Flipping a true value to false and vice-versa with the Python "not" operator.

Conditionals

Running different instructions based on a value.

If Statements

Creating conditional code with Python if statements.

Else Statements

Creating fallback code with Python else statements.

Elif Statements

Creating secondary conditions with Python elif statements.

Iteration

Repeating the same instructions with multiple values.

Range Loops

Iterating over a sequence of numbers with ranges.

String Loops

Iterating over the characters in a string with string loops.

Functions

Grouping related code under a name with Python functions.

Functions in Python

Creating your own custom functions in Python.

Function Parameters and Arguments

Creating functions that use input values.

Return Statement

Making Python functions give values back with return statements.

Function Practice

Practice making functions using inputs and generating outputs.

Collections

Grouping multiple values together with collections.

Lists

List Indexing and In Keyword

Searching and retrieving values from Python lists.

List Editing

Adding, updated, and removing list values.

List Range and Concatenation

Splitting and Joining Strings

Splitting and re-joining Python strings based on specific patterns.

List Iteration

Repeating operations on all values in a list with iteration.

Dictionaries

Dict Get and In Keyword

Finding and retrieving values in Python dictionaries.

Dict Editing

Dict Iteration

Repeating operations on dictionary names and values.

Data Series

Solidify your Python data-manipulation skills with these data series challenges.

Concepts: Collections

What are Collections?