Introduction to Python.

source:python.org

Hello everyone and welcome to the Python course that we're going to be doing. Now, this course is going to be aimed at somebody who may not have basic knowledge about what a programming language is, but this would be your first programming language, and this is a great programming language to start with.

It does have some limitations and sometimes this is not the right tool for the job, but a lot of times this offers people who have no experience programming a really great way of understanding,what a programming language is and how to use one.

So, the main differences between Python and other languages like C++, or C, or Java, is that Python is built around two main focal points which I believe are code readability and simplicity. So, we're going to jump into the language here in a few Posts, but we need to do a few things first. First, we need to discuss what Python is,and then we need to get it installed, and then we can start discussing you know what's an interpreter, how do you run a Python script, and then get into the language itself. Now the language is different but it's easy, and once we get past an understanding of how the programming language works, and the syntax, and all the different stuff you can do with it, we're going to move on to actually programming real applications, and showing you guys different practical applications of the Python programming language.

So, for instance, we're going to be building a website, we're going to be building a web scraper, and a graphical utility...we're actually going to be building multiple graphical tools because there are a few different graphical, or GUI, GUI, whatever you want to call it, there's a few different frameworks for Python that we could use.So we're going to explore three of them. So, right off the bat here's a fun fact,if you didn't know Python is actually named after Monty Python, who's made some great films. So, if you haven't seen Search for the Holy Grail or The Life of Brian, go do it. They're great movies, which is completely beside the point.So, Python is actually a pretty old programming language. It was first introduced in 1991 which makes it 25 years old. There's two current versions.Now this may be confusing as well. So there's a Python 2 series, and there's a Python 3 series. Python 2 is currently at 2.7.11, and the 3 series is at 3.5.1.

Now we're going to be using Python 3 in this course, however Python 2 shouldn't be much different. If afterwards you want to explore using Python 2 that's completely acceptable. So, now as I said Python is based around simplicity and readability, and this means that when you look at Python code it's all indentation based. So if you looked at another code like Java, you'd see a lot of curly braces, and brackets, and a lot of things that are just there to confuse the novice programmer. Python is based on indentation, so you don't need to wrap blocks of code in curly braces, and you guys will see what I mean coming up in the in the next few Posts. So, that's all we're going to talk about today.

I hope you guys enjoy this course and find it useful. There's a comment section to the right for each posts if you guys ever  feel that you're not too sure on something that I explained, or maybe you had some input in addition to what I explained, feel free to use that. So, yeah,let's get started!

 Hello everybody and welcome to this online Python programming course. Now before we begin with the actual coding,let us talk about a few things, such as for who is this course, and what we will be doing in this course.

First of all, what we are going to learn in this course is Python 3. Now let's get that out of the way, right away. The reason why we are using Python 3 is because it is 2019 today, and basically next year Python 2 will be going out of date. Basically, it will not be in usage any more. Therefore, what we want to do is we want to learn Python 3 programming,which is similar to Python 2. If you had an experience before with Python 2,the syntax is rather similar. Except in some functions and some different things that we're going to cover of course, but most of the time it is rather similar. We are going to use Python 3, as I said, because that is something that is going to be used next year. Basically, every Python 2 platform will have to update itself to Python 3, and therefore we are going to download Python 3.

But, more about that in the next lecture. First of all, let us talk about for who is this course. Well, for example, if you are a student and you want to learn some Python programming, this will be a perfect course for you. Because we're going to cover everything from the very beginnings of Python programming, to some more advanced stuff later on. Now nothing really too advanced because this course is mostly aimed towards beginners. We are going to cover everything from the basics in great detail, so you can understand Python programming at a whole other level. Now of course even if you want to make this your career and become a Python developer, or basically a web developer with Python, you can take this course and you will learn a lot from it. Now we know that there are a lot of subjects covering Python, such as web developing,scripting, networking in Python, writing simple programs, writing something that will automate different tasks, and so on and so on. We will cover all of these things. But, first of all, we will be downloading Python 3 for our Windows 10 machine, and also for Ubuntu and Mac OS.

Now I will show you how to download for the Ubuntu and Mac OS, or I will show you the commands that you will use to download, but we will be mostly coding in the Windows 10 environment. As you can see, right here I have our virtual machine, Ubuntu virtual machine, which we are going to probably use later on for something. Such as, for example, networking where we are going to need two machines to communicate with one another. But, as I said before, we are mostly going to use the Windows 10 environment. Now in the process of installation of Python 3, I will show you on all three platforms how you can download Python, and how you can start it up. So that will be about it for this introductory video, nothing really more to say right here.

Let us get right into programming. And in the next lecture I will explain a little bit about Python,what that is, and we're going to also download Python 3 for our Windows 10 environment. Hope you enjoyed this first lecture, and I hope I see you in the next tutorial.

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