Today, Python is one of the most popular programming languages. Although it is a
generalpurpose language, it is used in various areas of applications such as
Machine Learning,
Artificial Intelligence, web development, IoT, and more.
This Python tutorial has been written for the beginners to help them understand the
basic
to advanced concepts of Python Programming Language. After completing this
tutorial,
you will find yourself at a great level of expertise in Python, from where you can
take
yourself to the next levels to become a world class Software Engineer.
This Python tutorial is based on the latest Python 3.11.2 version.
What is Python?
Python is a very popular general-purpose interpreted, interactive, object-oriented,
and
high-level programming language. Python is dynamically-typed and garbage-collected
programming language. It was created by Guido van Rossum during 1985- 1990. Like
Perl, Python source code is also available under the GNU General Public License
(GPL).
Python supports multiple programming paradigms, including Procedural, Object
Oriented and Functional programming language. Python design philosophy
emphasizes code readability with the use of significant indentation.
This tutorial gives a complete understanding of Python programming language,
starting
from basic concepts to advanced concepts. This tutorial will take you through
simple and
practical approaches while learning Python Programming language.
Python Jobs
Today, Python is very high in demand, and all the major companies are looking for
great
Python programmers to develop websites, software components, and applications or to
work with data science, AI, and ML technologies. When we were developing this
tutorial in
2022, there was a high shortage of Python programmers, where the market demanded a
greater number of Python programmers due to its applications in machine learning,
artificial intelligence, etc.
Today, a Python programmer with 3-5 years of experience is asking for around
$150,000
in an annual package, and this is the most demanding programming language in
America.
Though it can vary depending on the location of the job. It's impossible to list
all of the
companies using Python, to name a few big companies are:
Google
Intel
NASA
PayPal
Facebook
IBM
Amazon
Netflix
Pinterest
Uber
Many more...
Python Tutorial
ii
So, you could be the next potential employee for any of these major companies. We
,have
developed great learning material for you to learn Python programming, which will
help
you prepare for the technical interviews and certification exams based on Python.
So, start
learning Python using this simple and effective tutorial from anywhere and anytime,
absolutely at your pace.
Why to Learn Python?
Python is consistently rated as one of the world's most popular programming
languages.
Python is fairly easy to learn, so if you are starting to learn any programming
language,
then Python could be your great choice. Today, various schools, colleges, and
universities
are teaching Python as their primary programming language. There are many other
good
reasons that make Python the top choice of any programmer:
Python is open source, which means it's available free of cost.
Python is simple and easy to learn.
Python is versatile and can be used to create different kinds of applications.
Python has powerful development libraries, including AI, ML, etc.
Python is much in demand and ensures a high salary.
Python is a MUST for students and working professionals to become great software
engineers, especially when they are working in the web development domain. I will
list
down some of the key advantages of learning Python:
Python is Interpreted − Python is processed at runtime by the interpreter. You
do not need to compile your program before executing it. This is similar to PERL
and PHP.
Python is Interactive − You can actually sit at a Python prompt and interact with
the interpreter directly to write your programs.
Python is Object-Oriented − Python supports Object-Oriented style or technique
of programming that encapsulates code within objects.
Python is a Beginner's Language − Python is a great language for the beginnerlevel
programmers and supports the development of a wide range of applications
from simple text processing to WWW browsers to games.
Python "Hello, World!"
To start with Python programming, the very basic program is to print "Hello,
World!" You
can use the print() function. Below is an example of Python code to print "Hello,
World!"
−
# Python code to print "Hello, World!"
print ("Hello, World!")
Python Online Compiler
Our Python programming tutorial provides various examples to explain different
concepts.
We have provided Online Python Compiler/Interpreter. You can Edit and Execute
almost
all the examples directly from your browser without the need to set up your
development
environment.
Try to click the icon to run the following Python code to print conventional
"Hello,
World!".
Python Tutorial
iii
Below code box allows you to change the value of the code. Try to change the
, value inside print() and run it again to verify the result.
# This is my first Python program.
# This will print 'Hello, World!' as the output
print ("Hello, World!");
Careers with Python
If you know Python nicely, then you have a great career ahead. Here are just a few
of the
career options where Python is a key skill:
Game developer
Web designer
Python developer
Full-stack developer
Machine learning engineer
Data scientist
Data analyst
Data engineer
DevOps engineer
Software engineer
Many more other roles
Characteristics of Python
Following are important characteristics of Python Programming −
It supports functional and structured programming methods as well as OOP.
It can be used as a scripting language or can be compiled for building large
applications.
It provides very high-level dynamic data types and supports dynamic type
checking.
It supports automatic garbage collection.
It can be easily integrated with C, C++, COM, ActiveX, CORBA, and Java.
Applications of Python
Python is a general purpose programming language known for its readability. It is
widely
applied in various fields.
In Data Science, Python libraries like Numpy, Pandas, and Matplotlib are used for
data analysis and visualization.
Python frameworks like Django, and Pyramid, make the development and
deployment of Web Applications easy.
This programming language also extends its applications to computer vision and
image processing.
It is also favored in many tasks like Automation, Job Scheduling, GUI development,
etc.
Python Tutorial
iv
Features of Python
The latest release of Python is 3.x. As mentioned before, Python is one of the most
widely
used languages on the web. I'm going to list a few of them here:
Easy-to-learn − Python has few keywords, simple structure, and a clearly defined
syntax. This allows the student to pick up the language quickly.
Easy-to-read − Python code is more clearly defined and visible to the eyes.
Easy-to-maintain − Python's source code is fairly easy-to-maintain.
A broad standard library − Python has a bulk of portable and cross-platform
libraries and they are compatible with UNIX, Windows, and Macintosh.
Interactive Mode − Python has support for an interactive mode that allows
interactive testing and debugging of snippets of code.
Portable − Python can run on a wide variety of hardware platforms and has the
same interface on all platforms.
Extendable − You can add low-level modules to the Python interpreter. These
modules enable programmers to add to or customize their tools to be more
generalpurpose language, it is used in various areas of applications such as
Machine Learning,
Artificial Intelligence, web development, IoT, and more.
This Python tutorial has been written for the beginners to help them understand the
basic
to advanced concepts of Python Programming Language. After completing this
tutorial,
you will find yourself at a great level of expertise in Python, from where you can
take
yourself to the next levels to become a world class Software Engineer.
This Python tutorial is based on the latest Python 3.11.2 version.
What is Python?
Python is a very popular general-purpose interpreted, interactive, object-oriented,
and
high-level programming language. Python is dynamically-typed and garbage-collected
programming language. It was created by Guido van Rossum during 1985- 1990. Like
Perl, Python source code is also available under the GNU General Public License
(GPL).
Python supports multiple programming paradigms, including Procedural, Object
Oriented and Functional programming language. Python design philosophy
emphasizes code readability with the use of significant indentation.
This tutorial gives a complete understanding of Python programming language,
starting
from basic concepts to advanced concepts. This tutorial will take you through
simple and
practical approaches while learning Python Programming language.
Python Jobs
Today, Python is very high in demand, and all the major companies are looking for
great
Python programmers to develop websites, software components, and applications or to
work with data science, AI, and ML technologies. When we were developing this
tutorial in
2022, there was a high shortage of Python programmers, where the market demanded a
greater number of Python programmers due to its applications in machine learning,
artificial intelligence, etc.
Today, a Python programmer with 3-5 years of experience is asking for around
$150,000
in an annual package, and this is the most demanding programming language in
America.
Though it can vary depending on the location of the job. It's impossible to list
all of the
companies using Python, to name a few big companies are:
Intel
NASA
PayPal
IBM
Amazon
Netflix
Uber
Many more...
Python Tutorial
ii
So, you could be the next potential employee for any of these major companies. We
,have
developed great learning material for you to learn Python programming, which will
help
you prepare for the technical interviews and certification exams based on Python.
So, start
learning Python using this simple and effective tutorial from anywhere and anytime,
absolutely at your pace.
Why to Learn Python?
Python is consistently rated as one of the world's most popular programming
languages.
Python is fairly easy to learn, so if you are starting to learn any programming
language,
then Python could be your great choice. Today, various schools, colleges, and
universities
are teaching Python as their primary programming language. There are many other
good
reasons that make Python the top choice of any programmer:
Python is open source, which means it's available free of cost.
Python is simple and easy to learn.
Python is versatile and can be used to create different kinds of applications.
Python has powerful development libraries, including AI, ML, etc.
Python is much in demand and ensures a high salary.
Python is a MUST for students and working professionals to become great software
engineers, especially when they are working in the web development domain. I will
list
down some of the key advantages of learning Python:
Python is Interpreted − Python is processed at runtime by the interpreter. You
do not need to compile your program before executing it. This is similar to PERL
and PHP.
Python is Interactive − You can actually sit at a Python prompt and interact with
the interpreter directly to write your programs.
Python is Object-Oriented − Python supports Object-Oriented style or technique
of programming that encapsulates code within objects.
Python is a Beginner's Language − Python is a great language for the beginnerlevel
programmers and supports the development of a wide range of applications
from simple text processing to WWW browsers to games.
Python "Hello, World!"
To start with Python programming, the very basic program is to print "Hello,
World!" You
can use the print() function. Below is an example of Python code to print "Hello,
World!"
−
# Python code to print "Hello, World!"
print ("Hello, World!")
Python Online Compiler
Our Python programming tutorial provides various examples to explain different
concepts.
We have provided Online Python Compiler/Interpreter. You can Edit and Execute
almost
all the examples directly from your browser without the need to set up your
development
environment.
Try to click the icon to run the following Python code to print conventional
"Hello,
World!".
Python Tutorial
iii
Below code box allows you to change the value of the code. Try to change the
, value inside print() and run it again to verify the result.
# This is my first Python program.
# This will print 'Hello, World!' as the output
print ("Hello, World!");
Careers with Python
If you know Python nicely, then you have a great career ahead. Here are just a few
of the
career options where Python is a key skill:
Game developer
Web designer
Python developer
Full-stack developer
Machine learning engineer
Data scientist
Data analyst
Data engineer
DevOps engineer
Software engineer
Many more other roles
Characteristics of Python
Following are important characteristics of Python Programming −
It supports functional and structured programming methods as well as OOP.
It can be used as a scripting language or can be compiled for building large
applications.
It provides very high-level dynamic data types and supports dynamic type
checking.
It supports automatic garbage collection.
It can be easily integrated with C, C++, COM, ActiveX, CORBA, and Java.
Applications of Python
Python is a general purpose programming language known for its readability. It is
widely
applied in various fields.
In Data Science, Python libraries like Numpy, Pandas, and Matplotlib are used for
data analysis and visualization.
Python frameworks like Django, and Pyramid, make the development and
deployment of Web Applications easy.
This programming language also extends its applications to computer vision and
image processing.
It is also favored in many tasks like Automation, Job Scheduling, GUI development,
etc.
Python Tutorial
iv
Features of Python
The latest release of Python is 3.x. As mentioned before, Python is one of the most
widely
used languages on the web. I'm going to list a few of them here:
Easy-to-learn − Python has few keywords, simple structure, and a clearly defined
syntax. This allows the student to pick up the language quickly.
Easy-to-read − Python code is more clearly defined and visible to the eyes.
Easy-to-maintain − Python's source code is fairly easy-to-maintain.
A broad standard library − Python has a bulk of portable and cross-platform
libraries and they are compatible with UNIX, Windows, and Macintosh.
Interactive Mode − Python has support for an interactive mode that allows
interactive testing and debugging of snippets of code.
Portable − Python can run on a wide variety of hardware platforms and has the
same interface on all platforms.
Extendable − You can add low-level modules to the Python interpreter. These
modules enable programmers to add to or customize their tools to be more
