Friday, April 23, 2021



Article Overview:- Node.js vs Python: Which Backend to choose in 2021. This is a detailed comparison between two powerful programming languages for backend development that will give you a clear idea about their advantages, disadvantages, similarities, and will help you decide which technology to choose that will suit your development needs.

Python and Node.js are two very popular and powerful languages that come with very different real-world applications and considered the best programming languages because of the ease it provides you.

Node.js vs Python Astonishing Fact

Did you know? Node.js is a powerful backend where high traffic websites like Netflix, Paypal, LinkedIn, and Groupon also use it. But, Python is no less popular in comparison with Node.js. Companies such as Instagram, Amazon, Facebook, and Spotify use Python to code.

Uses of Nodejs & Python

Everything depends on the choice of backend technology you are selecting for your project’s use case is quite imperative. Your choice of backend will determine scalability, resource consumption, performance, ease of deployment, and the success rate of your project.

We all know that it’s quite amazing!

For the start, it is normal if you go through confusion between both backends, making a perfect choice for your project can be a very flinty task but don’t worry, we all went through the same phase.

So, before we start with what is Node js and Python, the difference between them, advantages, disadvantages, similarities, and their use cases, you need to set the criteria of your project for choosing between Node js and Python.

Here, we will cover everything that you need to know about Node js and Python. So, why wait right?

Let’s roll!

Table of Content


When you’re looking forward to choosing a perfect backend language for the project, it is the best option to establish the expectations right away. As tech experts for our client, we focus on the following criteria as follows:

Selection Criteria for deciding Nodejs vs Python


The type of project is based on where your project ranges. You have to decide whether your project falls in Computing Apps, Business Apps, Saas, Website, Data-driven software, Social Media App, Messenger App, Gaming App, or any other app.

Your Application or Website will establish the intensity and the nature of backend operation.


In this, you’ll have to analyze the aim of the product you’re building. You have to know whether your app is a data-heavy app or an interface-focused app? Know whether the functionality of the product is interactive or static?

In this, you will have to analyze your competitor’s strengths and weaknesses, observe the market, and what your users expect.


When you choose the backend stack for your project, it is very important to understand which user-base you’ll be dealing with – National, Local, or International. More precisely the project’s geographical reach is, more carefully you’ll have to choose architecture, framework, and tech solutions.


Before you start the development of your project, you should know the skill set your team possesses. What technology they have learned and how powerful they are in it? What extra skill sets you’ll require for the development of the Application.


Since Covid-19 took over the world, every field in the market raises this question before starting anything. Not only this, but you should know what is the current situation so you can predict the value that your project will serve in the market when it is released.


Ideally, you wish for a High-speed, highly-secure, responsive and interactive backend. But no backend development tool is perfect. That’s the fact.

What you can do is set your priorities according to your project needs and choose a tool that focuses on those characteristics.

Now, let’s dig deep and analyze Node.js vs Python in-depth.


Python is a high-level, interactive interpreted, object-oriented programming. It is designed in such a way that is highly readable. High-level built-in data structures that are merged with dynamic binding and dynamic typing, which makes it very attractive for developing any application faster.

It is simple and easy to learn syntax readability. the modules, libraries, packages encourage code reuse and program modularity. Often, programmers fall in love with python because it increases your productivity and consumes less time to develop code.


Python is called a dynamically typed language because of the ease it provides with coding. It comes with many awesome features that will astonish you to your very core. Those features are:

#1 Easy to code:

Python comes under a high-level programming language. It is very easy to learn compared to other languages, be it C, Javascript, C#, Java, etc. It is a developer-friendly language. Who will not work with fewer lines of code instead of writing huge codes.

#2 Object-Oriented Language:

One of the main and most important features of python is; it is object-oriented programming. Being an object-oriented language it supports objects encapsulation, different concepts of classes, etc.

#3 GUI Support:

You can create Graphical User Interface in python using PyQt5, PyQt4, Tk, or wxPython. Out of all four, the most popular and highly used option for a graphical app using python is PyQt5.

#4 Open Source and Free:

It is available for free on its official website. All you have to do is search for the “Download Python”keyword on Google or any search engine of your choice.

Since it is open-source you can access available source codes according to your need.

#5 Python is Portable:

Python Programming is portable. For example, if you have a code you wrote in windows and you wish to run it on another platform like Mac, Linux, or Unix, you will not have to change the whole code for that. You can run that code on any platform.

#6 Interpreted Language:

Python is an Interpreted language because the code in it is executed line by line like C, Java, C++, etc. In this, you don’t have to compile the code. Thus, Python code makes it easier to debug our code. Its source code is translates into bytecode, which is an immediate representation of the code.

#7 Standard Library:

Language comes with a large standard library that offers a useful set of modules and functions so that you’ll not have to write new code every single time. You can directly use the library and save time.

Advantage & Disadvantage of Python
Advantages and Disadvantages of Python


Node.js or Node is an open-source and cross-platform runtime environment for executing Javascript code outside of a browser. We use this Cross-platform runtime environment quite often to build backend services also called API or Application Programming Interface. Node.js is a highly-scalable, data-intensive, and real-time backend service that powers our client application.

Node is easy to start with, it comes in use for prototyping and agile development. It also comes in use for building super fast and highly scalable services such as PayPal, Uber, Netflix, Walmart, and many more.

Hire Node.js Developer
Hire best Remote Node.js Developer


Features of node.js make it different from other loved programming languages and make it more popular for faster & awesome back end development. Have a look at the awesome Node.js back end development features:

#1 Asynchronous Programming:

Here, event driven IO supports concurrent request handling. Node.js’ APIs are all offbeat. This component specifies that if a Node receives a request for an Input/Output operation, it will perform that task invisibly while planning other solicitations.

#2 Fast Code Execution:

The parser produces an abstract syntax tree when V8 compiles JavaScript code. A syntax tree is a tree representation of JavaScript code’s syntactic structure. Ignition uses this syntax tree, the interpreter, to generate bytecode. TurboFan, the optimizing compiler, eventually converts the bytecode to optimized machine code.

The library of Node. js is quite quick when it comes to executing code. Google Chrome’s V8 JavaScript engine came in use when code was developed.

#3 Highly Scalable and Single-Threaded:

Node.js follows a solitary string model that brings circling of occasion. Node.js follows an event mechanism that can respond by achieving the server very quickly. Since Node.js is non-blocking, all functions (callbacks) go to the event loop, where several threads execute them.

#4 No Buffering:

Applications in Node.js never buff any data. All Applications simply output the data in form of chunks.

Advantage & Disadvantage of Node.js
Advantages and Disadvantages of Node.js



Architecture is a place to attach to the framework or language with common practice to achieve the desired output. Here, Python follows a common way of implementation known as “CPython” that uses interchangeable code modules. Where Node.js is a single-threaded architecture that handles multiple requests in a single thread.

The difference between the architecture of Node.js vs Python is:

Node. jsPython
Node.js is a runtime environment with asynchronous programming on the server-side. It means that some processes will be running while the input-output functionality is not blocked.
In Node.js, parallel processing can be done such that deploying the application is quick. The event-driven architecture of Node.js allows taking any actions when any event takes place.
Compared to Node.js, Python provides its opposite functionalities. Python is synchronous and supports single threading. In Python, You have to run and finish one whole process.
Although, Python does provide libraries like asyncio to make the code asynchronous, using the async/await syntax. asyncio code is an exact fit for high-level and IO-bound structured network code. Where it also provides high-level APIs to perform network IPC and IO; distribution of tasks via queues; keep control over subprocesses; and many more.
asyncio may be a single time saver for you but they cannot make python asynchronous to the full extent. It may happen that you may not achieve the desired asynchronicity.


In this, the heads-up goes to Node.js for having asynchronous architecture. 


The scalability of any language makes us clear about how effective the language is during handling huge user traffic and how it can be managed using fewer servers. Scalability is essential in content-heavy applications and those that serve a diverse set of new users through the use of mobile and desktop interfaces.

Node. jsPython
Node.js is single-threaded and has an asynchronous architecture that is totally based on events and non-blocking I/O that is used to make most of the computer and CPU memory.
The asynchronous nature of Node.js makes it more powerful because of its concurrent request execution compared to synchronous/ multi-threaded architecture. In node.js I/O does not block the program execution under I/O heavy workload that helps Node.js application runtime performance all over.
Python being synchronous in nature and supports coroutines. These coroutines can help you achieve asynchronous processing.
Python may not seem scalable in nature but it does come with the tools that can help you achieve the desired scalability. Python also weighs well in terms of code complexity, making complex projects easier to code, whereas Node.JS may pose difficulties due to its asynchronous programming.


Libraries gave a new base to the whole scenario of app-development technology in the last few decades. If something has already been developed as a code, there should be no need to recreate it. Instead, you can easily integrate this code from libraries to your code/program at the time of development.

Node. jsPython
Node.js is known for its detailed, well-documented, and comprehensive libraries which are managed by Node Package Manager. NPM is called the largest repository in the world because it provides 3,50,000 packages.
Ain’t that amazing?
In Python, libraries are managed by pip- ‘Pip Install Packages’ is its acronym. Python libraries are well-documented and easy to deploy. But with the new libraries coming up, it is not well documented as older ones- which makes the new libraries less reliable.


A group of active/current users that works with the new technology. In these technologies, current developers are responsible to keep updating the popular libraries, add new features, and run debugging programs.

A good community is one that is managed by a single dedicated organization that works for a particular programming language.

Node. jsPython
Node.js is not as old as python. It’s true whether you believe it or not. You might consider its community to be strong, but you’d be surprised to know that it has a quite active community of Node.js developers with a large follower base.Python being the older language has a larger community. The biggest advantage of having a large community and easy to learn syntax is that; you can find the best developer from any corner of the world. A large community means active participation in every python development requirement and these seats are filled by the developers to bring out one happening solution.


Both languages are very popular and are known for the unique ability they possess to make programming easier. Both of them are open-source and free to use.

Here, you need to make the choice of which language’s functionality will suit your project more.


Node.js vs Python: both areas of applications are quite different in their own ways. Python rules over the world because it provides server-side language, but on the same side, Node.js is a go-to tool for every business.

Let’s Dig a little deeper to understand, Node.js vs Python, which is worth considering for web application development.


It is a runtime environment that is an ideal choice for apps that uses a constant connection between server and web application.

Node.js has quite good Use cases like:

Use Cases of Node.js
Use Cases of Node.js

#1 Microservice Architecture

Microservice Architecture is a method of designing a web application in a small community that is divided into separate services, each of which performs a specific purpose. Microservice architecture web application communicates through REST/HTTP protocol with the help of JSON Data Structure.

#2 For Creating SPAs (Single Page Application)

SPAs have become a very common approach today. In SPA the whole page basically fits on one page to offer a desktop app-like experience. Node.js is perfect for building SPA because its asynchronous nature deals with heavy I/O operations.

#3 Chatbots

You might already know that chatbots are already in use on a wide range these days. In fact, it has become a necessity for every single business. NodeJS comes with all the basic functionalities for building chatbots. Node Event API is very helpful for developers because it makes it possible to implement server-side events.

#4 Streaming Web Apps

NodeJS is the best choice for the development of streaming web apps. Node.js comes with a built-in interface for readable and writable streams that can be processed efficiently and monitored perfectly.

#5 Server-Side Applications

Since user behaviour, messages, and unique events of this kind define the flow, Node.js is a server-side application.


Python is an excellent option for website development in businesses. It is a powerful language for applications and websites. It is data-intensive and easy to learn.

Let’s take a look at the use cases of Python:

Python Programming Use Case
Use Cases of Python


Data Analysis is now reaching heights. It is becoming one of the most important areas of development with applications of Python Programming. Python provides many libraries for Big Data Analysis like NumPy, Pandas, SciPy, and many more to work with data and extract it.

Here or there, Python is the best fit for Big Data.

#2 Web App Development

One of the best uses of Python in Website Development. It is simply the best option and go-to programming language for web applications. Python provides Convenience, security, and scalability on the web app. Python offers a lot of website development frameworks like Flask and Django which are very efficient in their own ways.

In 2021, Python for Startup is the best choice because the ease it provides with web development, gives python a heads up for being a highly chosen back end development framework.

#3 Programming of Web Scraper

Web Scraping for a huge amount of data has become a useful medium for every business for extracting customer information and making a better and smart decision for the future.

#4 Machine Learning & Artificial Intelligence

The most interesting use of Python in Machine Learning & Artificial Intelligence. Machine Learning algorithms are the most important real-life uses of Python. Using the Python programming language, Developers can easily make a program in fewer lines of code with the best output.


Choosing between Node.js and Python can be one flinty job especially when you’re looking forward to developing a fully-functionalized project or product. As you saw, both platforms work best for web development or back-end development.

The features and benefits of both platforms are overwhelming and can confuse you. All you need to keep in mind is that you should keep your choices clear according to your project needs. In the end, the runtime environment that is more feasible and handy should be your first choice. Hopefully, this article will give you a clear perspective about both Node.js and Python, what it is, what are their features, advantages, disadvantages, and use cases. If you need help with analyzing your project, you can contact our team, we will help you analyze your business and suggest to you the best backend tool that will meet your users and your expectations.

LogicRays Technologies
LogicRays Technologies is Web Development, eCommerce Development & Mobile App Company based in India, UK & Australia. We have been in this industry since last 11 years and we have grown to bring the maturity in work we do for our clients. We provide services like Magento Development, iOS Development, Android Development, AI & ML Development, Python Development, Flutter Development, AWS Development, Google Cloud, Cloud Migration, Chatbot Development, Firebase Development, and many more. Every solution you seek is here at LogicRays Technologies.

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