Programming
for Beginners
6 books in 1
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TABLE OF CONTENTS
PYTHON
: Python - Why, and How?
SQL
PYTHON
DANIEL JONES
Python For Beginners
The Foolproof Guide to Learning Programming in Python
Introduction
The following chapters will discuss everything you need to get up and go with Python. There are quite a few reasons you may have chosen to learn Python, but whatever it may be, I have one goal and one goal alone in writing this book: helping you to understand everything that you need to understand in the context of Python so that I can get you up to speed with Python programming.
Well be learning everything from the most simple concepts and launching the most basic of programs to more difficult concepts that make up the world of programming such as control flow and the idea of methods which can be very intimidating at first. But dont worry for a second, it can be very hard and difficult to tackle, but youre not doing it on your own, and I can assure you that theres nothing stopping you from doing it in the first place. Whats more is that Ill be here walking you through all of it to be sure that you get what you need to get.
However, thats not to say that Im going to hold your hand. Your time is important to you, and because its important to you, its important to me. Thats why Im not going to linger a long time on any topic and Im not going to run you simple processes. Im going to assume youre smart, because it takes a smart person to pick up a book about programming and try to learn it on their own in the first place. So Ill teach you something once, and youll be expected to know it, and thats the way this book is going to go. But Im going to be helping you to implement all of the processes we learn as we go. Why? Because thats the best way to learn.
Learning to program is not easy. Its never easy. But my goal is to make it easier, and to give you an easy way to digest the absolute oceans of information that there is to know.
There are plenty of books on this subject on the market, thanks again for choosing this one! Every effort was made to ensure it is full of as much useful information as possible, please enjoy!
Chapter 1
Python - Why, and How?
There are a lot of reasons you may want to Python. Or, you may just be looking for a place to start with the wide, wide world of programming. Regardless of your specific purpose and goal, I can guarantee you that the Python programming language will provide you with all of the tools that you need to do exactly what it is that you want to do.
If youre browsing the introductory pages of this book on a preview or something of the like, on the fence as to whether or not you want to learn Python, well, I can tell you that you probably should.
Why?
Well, Python is basically an incredibly useful and powerful language. Its present essentially everywhere. Everything from the scripting side of video games (or the video games themselves) to intensive server-side web applications to the plethora of deep and responsive desktop applications that have been built with it.
When should you use Python? The answer depends upon exactly what youre going to do. But since youre a beginner, I say you should learn anyway.
As you continue to grow as a programmer after this book, youre going to learn when you should and shouldnt use Python just as a matter of intuition. Python is an absolutely fantastic language, but the place where it fails is when you have to get extremely close to a computers hardware or write incredibly efficient programs. In these areas, Python doesnt excel.
However, thats not to say it doesnt have its perks. In fact, Id say thats one of the few places that Python falls flat. And what it lacks there, it makes up for in other areas. For example, development time in Python is generally extremely low in comparison to other languages. This is super easy to illustrate. Compare the following excerpts of code, the first from C++, the second from Java, and the last from Python.
Heres the C++ example:
#include
using namespace std;
int main() {
print Hello world <
}
Heres the Java example:
public class javaExample {
public static void main(String args[]) {
System.out.println(Hello world\n);
}
}
And heres the Python example, for comparison:
print Hello world\n
See how much easier it is? And this is just with rudimentary programming concepts. When you get into heavier programming concepts like variables, functions, and other things of that nature, Python actually goes out of the way to make them really simple and functional to handle. Well get more into this in the other chapters, of course.
On top of this, Python, as Ive already said, is a language which has endless opportunity for usage and growth. There are very few explicitly bad situations for Python. This makes it a great language to learn initially for the simple fact that youll be able to get a ton of mileage out of it. There will be very few times where, as a beginning programmer, youll come up with a concept youd like to carry out that you wont be able to conquer perfectly well with Python.
So enough of all that, how do we get started with Python? Well, youre going to need a few things first. Of course, youre going to need a computer, preferably with an active internet connection, but there are going to be more things that you need.
Lets start our programming adventure right here. Im going to teach you everything that you need to get going with Python, so just follow along.