The two most popular back-end technologies for developing web-apps - Node.JS and Python - have advantages and disadvantages. App developers who want to choose the best out of these two backend technologies are likely to find the selection really cumbersome. Based on their actual needs they have to consider the pros and cons of both and arrive at a conclusion. The ultimate success of an app-development project mainly depends upon the programming language and the environment. Perfect selection of the entire stack of technologies is vital to produce the desired results. Both Node.js and Python are favorite server-side technologies of app developers and among them there are a lot of technical similarities.

These two back-end technologies were developed and introduced for different objectives While Python was introduced in the year 1991, Node.js was introduced after 18 years - in 2009. Python is basically a programming language on the server-side meant for web apps whereas Node.js is a Java Script runtime environment on the server-side. The amazing features and the various advantages offered by both these technologies are sure to make your selection tricky and confusing. It is indeed very important for an app developer to focus on the end use of the app that he plans to develop as also the features that he wants to offer through his product.

Web-developers find Node.js the better option since it is faster compared to Python. Node.js is quite suitable for both types of development - back-end and front-end whereas Python is suitable only for back-end development.

Basics of Node.js and Python

Node.js platform was developed on the JavaScript Engine of Google Chrome. App developers with projects for developing real-time web apps that are data-intensive will find Node.js as their ideal option. A great advantage of Node.js is that it allows to run the applications on different operating systems including Windows, Linux and Mac. Node.js facilitates scalable and fast development activities thanks to the clean source code and the large ecosystem of open-source libraries. Node.js is ideal for developing applications for both client-side and server-side and the robust ecosystem of Node.js facilitates development of high-performance apps with scalability.

Python is an open-source app development program that offers very highly productive libraries. Python ensures an easier but more efficient development service. Python was developed with the objective of providing a programming language that will ensure maximum readability, scalability and speed. The object-oriented programming language of Python makes it the ideal option for creation of dynamic web apps. Python is very convenient to use and it supports various programming standards. Those who prefer an object-oriented, general purpose programming language may opt for Python. The vast libraries and multiple packages offered by Python make the tasks of developing dynamic web, mobile and desktop apps easier.

Node.js is identified as the sixth most popular development language and not less than 80% of businessmen go for Node.js for developing web applications. While Node.js helps to increase the performance of apps by 50% it helps reduce development costs by 58%.

Python is the third most preferred programming language for app development and is used for developing apps related to AI and others.

Node.js VS Python

1. Speed and Performance

When speed and performance of Node.js and Python are compared, we come to know that Node.js is faster and offers better performance. Node.js has massive storage and processing is very fast. Node.js is capable of processing multiple requests quickly and simultaneously and can speed up code execution. With Node.js one can code outside the web browser with the help of TCP sockets.

 In comparison, Python is slower since it uses single flow of code. Python fails to provide instant recall of data from server.

2. Scalability

Easy scalability is an outstanding feature of Node.js. The asynchronous architecture of Node.js enables it to facilitate multithreading. The app can be scaled just by adding a few modules. Both vertical and horizontal scaling is possible with Node.js. Those who use Node.js can opt for either strongly typed TypeScript or weakly typed JavaScript.

In the case of Python, multithreading is impossible. Though the imported libraries of Python help to increase scalability, it is not a match for Node.js.

3. Universality

Node.js provides inherent cross-platform functionality. Node.js is used as the backend technology for mobile apps since the two major mobile operating systems - Android and iOS - do not offer Python as official programming language. Being a JavaScript tool, Node.js allows front-end and back-end development with same programming language. The same desktop app can be used on Windows, Linux and Mac operating systems. Node.js can be used for web app, mobile app, Cloud and IoT.

Python also can be used for both front-end and back-end development. Python enables cross-platform usage also. Linux and Mac are pre-configured with Python and in the case of Windows, the Python Interpreter is to be installed. While Python is not good for mobile app development, it is ideal for IoT and Natural Language Processing.

4. Architecture

Node.js is the best option for web games and chatbots since it is event-driven. It makes the development process faster. The amazing speed and ability to process multi-requests simultaneously make it one among the most favorite backend development technology.

Python is not event-driven. It can be made event-driven by using modules such as CPython. Being synchronous, Python is slow and hence not ideal for chatbots.

5. Libraries

Both Node.js and Python have no dearth of libraries and as a result the users are assured of plenty of alternatives. It is practically impossible to say which one is superior to the other in this aspect.

Node.js supports an NPM package manager which is one among the biggest package repositories with more than 3,50,000 repositories. Python supports a PIP package manager.

6. Community

The Python community came into existence in the year 1991 and Node.js was introduced only after 18 years. So, when compared to the Python community, Node.js community is very small. Hence it is easier for the Python users to get quick assistance online in case of technical problems during the project.

7. Usability

When compared to Python, Node.js is more efficient in data streaming. Hence it is the best option for data-intensive projects and also for those who need transmission of real-time information. Node.js is widely used in chatbots, content management systems, E-Commerce stores, Games and 3D Graphics since in all such projects a lot of client-side functionalities are required.

The concise code and functionalities made Python a popular development language. Though Python is slow when compared to Node.js, its abilities for troubleshooting and massive documentation made it a popular language. Engineering students and science graduates prefer Python for their projects since Python has a very large community of developers. Python is widely used in science and engineering, DevOps and Testing Automation, Big Data and technical projects of Governments.

8. Big companies using Node.js/Python

Netflix, PayPal, Amazon and LinkedIn are using Node.js.

Google, Pixar, Facebook, Spotify, Nasa and Reddit are using Python.

9. Error Handling

Both Node.js and Python are equally good in error handling. Node.js is known for its multithreading support whereas Python offers a variety of options for debugging and troubleshooting.

10. Extensibility

Node.js and Python are at par with regard to extensibility. Both these platforms offer a number of options for services and frameworks. Node.js works with the latest frameworks like Log.io, Jasmine and Babel. Python offers innovative frameworks such as Flask, Jango and Sublime Text.

11. Supported Platforms

Cross-platform compatibility of Node.js is indeed amazing and also it supports numerous platforms. Node.js runs smoothly on different platforms such as Android, Windows, Mac and Linux. Node.js facilitates development of different applications including IoT solutions, hybrid applications and cloud-based applications.

Python is not as flexible as Node.js and is mainly used for developing web and desktop applications.

12. Learning Curve and Syntax

Users who are familiar with JavaScript can easily get along with the Node.js environment. However, new developers may need some time to conceptualize the event-driven programming concept which makes Node.js scalable and high performing. Python is known for its easy syntax. When compared to Node.js, the length of the code is relatively less in Python. It is quite easy and simple to write code in Python.

Obvious differences between Node.js and Python

Node.js                                                                                                Python

Less readable                                                                                       Highly readable

Ideal for memory-intensive projects                                                   Ideal for large project development

JavaScript Interpreter                                                                          PyPy Interpreter

High performance                                                                                Limited performance

Best for real-time app development                                                    Best for complex software development related to AI and scientific computation

Can be used for frontend and backend development                           Used for developing app in less code

Pros and Cons of Node.js at a glance

Pros

Package manager of Node.js enables app developers to work simultaneously on multiple modules by providing free components.

Node.js provides access to the entire stack of JavaScript and resources.

Users get best front-end and back-end support for scalable development.

Node.js is fast and cost-efficient since it allows front-end and back-end development with no compromise on quality.

Node.js framework performs amazingly.

Node.js is highly suitable for memory-intensive projects.

Node.js is the best option for real-time app development.

Cons

The main disadvantage of Node.js is back-end incompatibility due to repeated API switch. It affects the changes in codes.

The asynchronous Node.js leads to the problem of "Callback Hell". It affects code quality and will be hard to solve and maintain.

Node.js is not capable of executing CPU-bound tasks. The system will slow down leading to inordinate delay.

Pros and Cons of Python at a glance

Pros

Python saves development time substantially and thereby facilitates fast developing of apps.

Great readability and very fast code interpretation by Python enable the user to easily fast-forward the development process.

Python is highly flexible and compatible. App developers can easily integrate other languages, tools and platforms whenever they need.

Python offers huge library support for developing different types of apps including games, web and machine-learning.

Python libraries are easy-to-use.

Cons

Conclusion

The app developers must consider the advantages and disadvantages of both Node.js and Python before making their choice. Both the platforms are suitable for back-end development. Node.js will be the better option for developing online chat apps, single-page apps, IoT-based apps, web apps, video streaming websites and other I/O - intensive web applications. Python is a dynamic, multi-purpose programming language for scripting and is object-oriented. Python is the best pick for developing robust business apps. The usability of both Node.js and Python exclusively depends on the type of your project. Just as Python is amazing for web and desktop applications, Node.js is highly suitable for front-end and back-end applications and more. The great usability of Node.js makes it a top back-end technology. Both Node.js and Python are excellent platforms for their specified uses. Those who have memory and data-intensive projects that require less code can opt for Node.js. Those with large projects with a lot of calculations and integrations can opt for Python which provides clean code and syntax. Node.js is written in C, C++ and JS and runs on V8 JavaScript runtime engine. Python runs on Google's App Engine.

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