What is Python?
Python is an object-oriented programming language, a general-purpose programming language with a high level, and also an interpreted language that has an easy syntax and dynamic semantics. Python language is easy to learn, and it is initialized dynamically. The development of Python was started, created and developed by Guido Van Rossum in 1989. He wanted to make a language free of curly braces, and also, he used indentations known as spaces; he thought that it would be better when it was written like this and easy to read and write it required a smaller number of lines.
It describes a block of code that came inside the language. With an increasing craze of machine learning and artificial intelligence, python language has become the spotlight because it works more productively and much more easily so that anyone can understand.
It has the unique computing environment and power that we have. We want to work more productively. Even if it takes time, it is easy to learn.
Why is Python Popular?
Python is the best and most interesting language to start with, and it has an easy syntax and high-level features, making it one of the best languages compared to others. Python has created everything from the beginning of Netflix's recommendation algorithm to software that controls self-driving cars. Python is used to design many applications like data science, web development, etc. Python is used to create various programs and is not only specialized for specific problems, but also It is the language of everybody. Python is an open-source programming language, meaning it is free to use for everybody. Thousands of programmers come online daily to make Python better and more efficient. Programmers can modify and break the existing code, and also, we can make the code on our own. Many python applications include GUI, web applications, mobile apps, server-side coding, Artificial intelligence, Machine Learning algorithms, etc.
A large community of programmers comes together to make libraries or modules that can use to modify the solution. For example, Machine learning algorithms are already available, and we can use them to obtain our solutions.
Features of Python
The first and most well-known feature of Python is simplicity. Python has made programming fun because it is simple; it makes you think more about a solution, not the syntax.
The next important feature is that Python is an open-source language that is free for anybody that not only programmers or developers can use but also normal people can use it. Modifications to Python are also allowed without any programs.
Python supports portability, meaning you can write your code and share it with anybody you want, and it would work the same way it does for us to run the code. This makes the movements of projects and systems much easier.
The next feature is the embedding properties. Chances are certain languages may perform certain functions that are better than Python, but that does not stop us. Python supports adding code of other languages into itself to run those functions, making Python more powerful than others.
Another feature is interpretation. Python code is interpreted line by line, which means the management of memory and CPU and debugging code is much simpler.
The next feature is that Python supports huge library support, which would help us find solutions to our problems more easily. We can get started over it. Data science and web development will go with Python.
Developers make applications so well related to the domain with the help of object-oriented concepts. Python supports OOPS meaning that we can model real-world problems into our code and have security for it such that access to them is restricted, which helps us replicate real-world scenarios.
Python is Used in the Industry
"GOOGLE" is the most well-known and leading company that uses Python to provide better features to users. For saving data online, "Dropbox" is the cloud platform for Google. The client and server applications are coded and developed using Python.
"NETFLIX" is a platform for watching series and movies that uses Machine Learning with Python to learn its users, form them into groups and recommend them to show and use them for longer.
The "NATIONAL SECURITY AGENCY" is an agency based upon security that uses Python for cyber security analysis and other encryption and decryption purposes.
The "BITTORRENT" application transfers files between peer-to-peer, one-to-one communication, which started as a normal python file.
"NASA" is an American space agency, a scientist who used Python for scientific calculations, which helped them reduce time and make the work easier.
These major companies use Python as a tool for their company. As we know, Python is a very important language, and it would be beneficial if we started learning it.
--> To create web applications on any windows, Python is used as a server.
-->Python language connects database systems and can also read and modify files.
-->Python handles big data and can perform complex mathematics.
Python can work on many platforms like Windows, Mac, Linux, Raspberry Pi, etc. It is developed with a simple syntax similar to the English language. The program developers in the python programming language use this simple syntax and will develop a code with fewer lines than in other programming languages. Python language runs on an interpreter system, which means it will execute the code as soon as it is written and does not include more time to complete. Prototyping is easy and fast. Python is a next-level language used these days and is treated procedurally or functionally, not in the manner of other languages.
The recent version of Python is python 3. Python 2 had not been updated with more things other than somewhat popular security updates.
We should write Python code in a text editor. These days python code is possible to write in any integrated development environment, such as Pycharm, Netbeans, Eclipse, etc., useful while managing larger collections of files that are stored in a database.
Other Programming Languages Compared To Python Syntax
1. Python programming language was designed for readability, similar to the English language we learnt from basics, with some similarities to mathematics.
2. Python language uses new lines to complete the command and is free from semicolons and parenthesis used in other programming languages.
3. Python follows indentation and uses whitespace to define scopes, such as the scope of functions but uses def keyword, classes, and loops. Any other programming language must use curly brackets and semicolons for this purpose.
Installation Of Python
Almost all PCs and Macs will have Python already installed in-built. To check Python installed on our Windows PCs, go to the start bar for Python or run the following on the command line: "cmd.exe".
C:\Users\Your Name>python --version
We use another command line to check if we have Python installed on a Linux or Mac, then open the command line on Linux or Mac, open Terminal, and its type.
As we know, Python is an interpreted programming language, meaning that a Python developer writes Python (.py) files in a text editor and then keeps them in a python interpreter to be executed.
To run a python file, we use the below command line.
C:\Users\Your Name>python helloworld.py
Here the name of the file is "HelloWorld, py" called python file.
From the above example, we have given a print function with the statement "Hello, World!" this will return an output. We should give the name of the file with the .py extension.
Here is the procedure for saving the file on our PCs.
The procedure is:
- Save that file and open the command line.
- Locate the directory where we saved our file.
Execution Of Python Syntax
Python programs can be executed by writing the command line.
>>> print (“Hello, World!”) Hello, World!
We can create a python file on the server using the .py extension and run the command line.
Indentation In Python
Indentation, in simple words, refers to spaces at the start of the code line. In other programming languages, the indentation in the code is only for readability; in Python, indentation is very important.
Indentation in Python is only to indicate a block of code.
if 6 > 3: print("six is greater than three!")
Python will give an error if we skip the indentation.
The spaces need not be in a correct manner; it's up to us as a developer.
if 4 > 3: print("Four is greater than three") if 2 > 1: print("two is greater than one")
We have to use the same number of spaces in one single block of code, or else python indentation will not work, giving an error.
if 4 > 3: print("Four is greater than three") if 2 > 1: print("two is greater than one")
It gives an error because we did not properly give indentation in a program.
So, a program should have no indentation error to get a good program.
Web app development is one option to choose Python as a career opportunity that we can choose. We have frameworks such as Django that can use to create web applications.
Game development is also an application in career options that allows you to create AI anime and process graphic textures accordingly.
Big data is an analysis that can help make decisions and take risks at any profit.
Web app testing is also an option where you can report bugs and ensure the website works as needed.
There are many advantages to Python, as we see above. So, at last, Python is very helpful in future opportunities. Python syntaxes are great for understanding. It is one of the most accessible programming languages available today due to its simple syntax that gives more influence on natural languages and is as easy as the English language.