LETS START WITH PYTHON: FROM INTRODUCTION TO FULL COURSE
Professor - SAURAV
Hi, I am professor Saurav, and I'm going to be your instructor in this Python course.
In this course, you're going to learn everything you need to get started programming in Python.
Python is one of the most popular programming languages, and every day people use it to do
cool things like automation, they use it in AI, as well as
building applications and websites like Instagram and Dropbox. So if you're looking
for a job, Python is for you. In this course I'm going to teach you everything
you need to get started with Python. We're going to talk about all the core concepts
in Python, and then we're going to build three Python projects together.
Here's the first project we're going to build. We're going to learn how to create this beautiful website
for an imaginary grocery store. Here on the homepage we can see all
of the products in the shop, and we also have an admin area for managing the
stock. We're going to build this using a popular Python framework called Django.
Now if you have never built a website before, don't worry, I will teach you everything from scratch.
You're also going to learn how to use Python in machine learning, or artificial intelligence.
So you will learn how to write a Python programming that will predict
the music that people like based on their profile. Just like how YouTube
recommends videos based on the videos you have watched before. I will also show you
python to automate boring repetitive tasks that waste your time.
You will write a Python program that will process thousands of spreadsheets
in under a second. I've designed this Python course for anyone who wants to learn
Python. If you're a beginner, don't worry, I will hold your hand through this entire course.
You're not too old or too young, and Python is super easy to learn. You can write your first
Python program in literally seconds. Plus I'm going to give you plenty
of exercises to help you build your confidence writing cool Python programs.
My name is Saurav, I'm a software engineer with two decades of experience
and I've taught over 3 million people how to code. I'm super excited to be teaching you
Python in this course. So I hope you stick around and learn this beautiful
powerful programming language.
In this tutorial I'm going to show you how to download
and install Python on your computer. So the first thing I want you to do,
is open up your browser and head over to Python
.org. On this page click on downloads,
here you can see the latest version of Python currently, at the time of writing this book
the latest version is python 3.7.2.
Chances are in the future, when you are reading this book, there is a newer
version of Python available, don't worry, all the materials you're going to learn in this course
will apply to the latest version of Python as well. So let's go ahead
and download Python 3, alright now,
look at your downloads folder, here, we should have Python 3 installer
simply double click that, if you're on Windows
you're going to see this check box here, add Python to
python, this is really important, make sure to tick this box, otherwise you're not going to be able to
follow this tutorial. If you're on a Mac,
you're going to see an installer like this, with this setup wizard we're going to install Python 3
on our computer. So simply click continue, and again,
and again, and agree with the license agreement, and
install it, this is going to take a few seconds so I'm going
to wait for few minutes.
Alright, we have successfully installed Python 3 on our computer.
Let's close this. Alright, next we need to install
a code editor, we se a code editor to write our code, just like
how we use Microsoft Word to write documents, we use a code editor to write
code. Now there are so many code editors out there, the one that I'm going to show you in this
tutorial is PyCharm. That is one of the most popular code editors
for writing Python code. You can get it from jetbrains.com
/pycharm. Now more accurately pycharm
is considered an IDE, which is short for integrated development
environment. And that's basically a code editor on steroids,
it has some additional features that makes it really easy to write code. So
let's go ahead and download PyCharm. Now here on the
download page, you can see two versions of PyCharm, one is the professional addition
which has additional features and you have to pay for them. The other is the
community edition, that is absolutely free, and that's what we're going to use in this tutorial.
So, go ahead and download this as well.
Now, once again look at your downloads folder, once again you should have pycharm
so double click this, now if you're
in Windows you're going to see an installation wizard, simply click next, next, next
until you install pycharm. If you're on Mac you need to drag and drop this icon
onto the applications folder, so drag and drop,
alright, now let's double click this to run it,
the first time we run pycharm we're going to get this warning, because this is an application
that we download from the internet. So let's go ahead and open it,
next you're going to see this dialogue box for importing some settings, leave this to
do not import settings, it doesn't really matter. Okay,
On this page, select I've never used PyCharm you can see some keyword
shortcuts that might be useful in the future, just accept this, and down at the bottom,
click the next button. And then next again,
one more time, and then finally start using pycharm.
So here's the main page of PyCharm every time you open
it, click on create new project,
this is the location for our project, let's call our project Hello
World. Now before click and create, expand
this item here, make sure that base interpreter is set to Python
3. Python interpreter is basically a program
that knows how to execute Python code, it will know how to interpret
or translate Python instructions into instructions a computer can understand.
Now, Mac computers, by default come with an older
installation of Python, that's Python 2, it's considered legacy
which means it's no longer maintained or supported. So earlier we downloaded
Python 3, make sure that this is set to Python 3, if not
from this list, select Python 3.7.
Alright, now let's go ahead and create this project,
Now here right click on
Hello World folder and go to new
Python file, call this file app.py.
So by convention, all Python files should have this
py extension. Alright, let's go ahead,
now let's collapse this project panel by clicking here and write our
first python program. Simply type print, pr
int, all in lowercase, open and close parenthesis,
and inside these parenthesis, add quotations we
can either use single quotes or double quotes, now
in between the codes write your name. I am Saurav Hamedani, so
