Now that you have a high-level understanding of the Python programming language, how it's used in various applications along with how you can get it running on your own system or in the browser. Now we're going to start getting into the fun part which is the code.

In this guide, we're going to walk through how we can utilize variables inside a python. Now if you're brand new to Python and even brand new to programming then the concept of variables may be a little bit foreign.

Continuing with our journey on Python variables I want to discuss something that's very important and it may not seem like the biggest deal right now but the further you go along on your python development journey you're going to discover that there are a number of standard conventions that the industry uses.

So far in this section on variable's we've been pretty limited with the number of data types that we've looked at from Python. And so I wanted to have one dedicated guide that gave a high level overview of what all the major data types are and how they're different from one another so that you'll know how to use them.

In this guide we're going to walk through how we can change variable values. Up until this point in the section we've seen how we can set variable values but now we're going to see how we can actually change those.

In some of the previous guides, you may have noticed how I had comments that were listed inside of the code file. And so in this guide, I wanted to dedicate an entire lesson to walk through the three popular ways of adding comments into a python program.