Lesson 2 of 4

Variables and Strings

A variable is a name that points to a value. You create one with =:

Python figures out the type for you: "Bilbo" is a string (str), 111 is an integer (int), and 3.5 would be a decimal (float).

f-strings

An f-string lets you drop variables straight into text. Put an f before the quotes and the variable in {}:

Strings have handy methods like .upper(), .lower(), and .title().

Functions that return

A function is a reusable recipe. def defines one, and return hands a value back to whoever called it:

Exercise: Welcome sign

Write a function greet(name) that returns the string Welcome to the Shire, <name>!

For example, greet("Sam") returns "Welcome to the Shire, Sam!".