Python Basic Tutorials

Python is a high level general purpose programming language which has a clear/easy learning curve. Python programming language is massively used in various domains like Artificial Intelligence, Data Science, Web Development, Utilities Tools and Scripts and many more

Python is a Programming language, and the default Python we use is written in C programming language which is also referred to as CPython (Python implementation in C). There are various implementation of Python Programming language i.e Jython(in JAVA), Skulpt(in JS) e.t.c

To make everything easy: We refer CPython as Python

Getting started with Python


Python is considered to be one of the programming languages that are easy to learn, grasp, and implement to develop real-world projects from the perspective of a beginner. Python; being a platform-independent programming language, is easier to use across multiple operating systems whether it be Windows, Linux, or Mac.

Features/Why Python?

  • Python is a high-level programming language and is open-source i.e; available for free
  • It follows an object-oriented approach; which is considered to be one of the best programming paradigms.
  • It is also an interpreted language i.e; the Python programs are executed by an interpreter
  • It is case-sensitive i.e; CODE, and code are not the same in Python
  • It is portable, and platform-independent i.e; it can run across different operating systems, and hardware platforms
  • Indentation is used for blocks and nested blocks. This plays a significant role in the entire program. If there's any mistake with the indentation, an error occurs and as a result, the program does not execute.
  • robustness; when the program goes through an error and crashes, the useful information regarding the reason behind the program to crash is shown including the exact line where the error has occurred.

Application Areas

Python is one of the most popular programming languages. It has applications in multiple domains ranging from web development to advanced data science, and machine learning, etc. Commonly, Python is used for developing websites, software, automating the tasks, analyze, and visualize the data.
  1. Web Development
  2. In the domain of web development, Python can be seen to be implemented for backend development. The most commonly used Python frameworks for web development are Django and Flask.
  3. Automation or scripting
  4. If there's any task that needs to be done repeatedly, it can be done more effectively, and efficiently using Python. All of the automation processes can be written in the form of codes. Python can be used to automate simpler tasks to complex ones as a result consuming time and human efforts.
  5. Data science
  6. Python has become a synonym for people pursuing careers in data science. The complex statistical calculations are reduced through Python. Besides that, different data visualizations are created, and the data present are manipulated, as well as analyzed. There are various data visualizations such as 3-D plots, pie-charts, etc. that can be generated using Python.
  7. Software testing
  8. In the software development industry, besides creating and developing software, Python is also used to automate testing, track bugs, etc. The most commonly used Python tools for software testing are Green and Requestium.
  9. Game development
  10. The domain of game development is also touched by Python. Although the games developed using Python don't look like professional ones, it explains a lot regarding the overall functional aspects of simple games.

Advantages of Python

  • supports plenty of libraries
  • can be used in different domains including data science, machine learning, web development
  • open-source and community-driven
  • easy to read, write, and code
  • portable across different types of operating systems

Python Installation

In order to execute Python in your local device, it first needs to get installed in your local device. You can download the latest version of Python as per your device's requirements.

  1. Once you've got Python installed in your device from the executable file, you can enter the Python shell by typing 'python' on the Command Prompt.
  2. After you're inside the Python shell, you are good to go with code execution.

Most of the Linux has got Python pre-installed, meaning you do not have to bother installing it. In order to get into the Python shell, all you need to do is type 'python' in the Terminal.

Let's code: A simple `Hello World` Python Program

Once you've got the Python installed in your local machine, you're ready to get started with the first-ever Python program; the popular "Hello World" program!

print('Hello World')
The above program displays the text "Hello Python" once it is executed in the Python shell. This is possible due to the built-in function 'print()'.