Understand how to use variables in Python from "summary" of Python For Dummies by Stef Maruch,Aahz Maruch
Variables in Python are like labels you stick on things so you can find them later. When you create a variable, you give it a name and a value. The value can be pretty much anything: a number, a string of text, a list, a dictionary, even a function. In Python, you don't have to declare the type of a variable when you create it. Python figures out the type based on the value you assign to it. You can change the value of a variable as many times as you like. You can even change the type of the value. To create a variable, you just have to think of a name and assign a value to it. The name can be pretty much anything you want, as long as it follows a few rules. Variable names can contain letters, numbers, and underscores (_), but they can't start with a number. You can use variables in Python to store data that you want to use later. For example, you might want to store a person's age, a product's price, or a user's name. You can then use these variables in your program to perform calculations, make decisions, or display information. Variables are essential in programming because they allow you to work with and manipulate data easily. Instead of hardcoding values into your code, you can store them in variables and refer to them by name. This makes your code more flexible, easier to read, and easier to maintain.
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