Python Variables Tutorial, Types with example

In this tutorial, you will learn about Python Variables. Variables are a container to store or hold the various type of data. Variables are kept your code more organized and maintained. Every programming language has a variable type and most are common in terms of definition, name, and property of variables.

Syntax

A Syntax of Python since Python 3.5 and above, you declare a variable type like this:

variable_name: type_name

Create a Simple Python Variables

Let’s do some code practice how to create variables in Python.

Text  – Strings Variables

Give a name like “message” or any name, There some variable naming rule will learn later.

I will store a text in variable “message”.

message = "Hello, Buddy !"
print(message)

Output: Hello, Buddy !

This how to create a String Variable.

• Don’t use the number before a variable name like 2msg

The string also has some inbuilt useful method, follow this link to know more in-depth: Python Strings Tutorial

Numbers Variables

phone_number = 1234567890
print(phone_number)

Output: 1234567890

For a detailed explanation about Numbers in python must follow this tutorial: Python Numbers & Types Tutorial

Python Variables Naming Rules

Python is a case-sensitive language, so it must define (naming) of the variable as proper. Here are some pythons variables rules :

• A variable name must start with a letter or the underscore character (like _var or mVar)
• It can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
• Variable names are case-sensitive (var, Var, and VAR are three different variables)
• Can’t start with a number

Do comment if you have any doubt and suggestions on this tutorial.

Note: This example (Project) is developed in PyCharm 2018.2 (Community Edition)
JRE: 1.8.0
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
macOS 10.13.6

Python 3.7

All Python variables examples are in Python 3 version, so it may change its different from python 2 or upgraded versions.