Introduction to Micro Web Framework Flask

Web Development in today’s time is very important for any business. Many big companies and startups rely on a great website to attract many customers.

Web Development for a Data Scientist is essential today because to a customer or user, demonstrating the code and showing the output in a terminal form wouldn’t make any sense if he is not from a programming background. This may lead to rejections.

To show the functionality of the machine learning or deep learning model, deploying it as a website or a web app makes sense as it is easy to show users the core functionality in a graphical form which tends to attract more users.

Web Development has become quite the way for a Data Scientist or any AI enthusiast to show his algorithm, a project that he has worked on. This is why most machine learning and deep learning engineers use some web development to deploy their models. But, how can a Data Scientist quickly deploy his/her AI model? Well, to answer that question we have something called Flask which helps us achieve it.

Let’s take a look at the contents that we will cover in this article.

Flask is a micro web framework written in Python. It is classified as a microframework because it does not require particular tools or libraries. It has no database abstraction layer, form validation, or any other components where pre-existing third-party libraries provide common functions. However, Flask supports extensions that can add application features as if they were implemented in Flask itself. Extensions exist for object-relational mappers, form validation, upload handling, various open authentication technologies, and several common framework-related tools.

Flask is very easy to learn and quick to implement. It is preferred by many Data Scientists as it is quick to implement and easy to show a demo of their models. As Flask is written in Python, Developers who are familiar with Python find it not difficult to learn Flask. Though Flask has no additional tools or libraries that a normal framework would have, it makes it easy to implement other services like databases.

Flask is a lightweight Web Server Gateway Interface Web Application (WSGI) framework. It gives the developer varieties of choice when developing web applications, it provides you with the necessary tools to build and deploy a web application. It does not enforce any dependencies or give a fixed project structure like other Python Web Frameworks like Django offers. This adds to the advantage side by making it useable by many developers. The website can be on anything, but still, it allows the developers the opportunity to use some extensions provided by the community that allows you to add more functionality to the web application.

Because of its simplicity, Flask is used in top tech companies like

As said above Flask is a lightweight Web Server Gateway Interface (WSGI) web application framework. It has minimal or no external libraries. It is used to create a simple website and then scale it up to complex applications. Below are some of the merits of using Flask.

You’ll need the following to run Flask.

Installing Flask is pretty easy. All you have to do is just type one command. That’s it.

First, install the virtualenv package using the pip command.

Go ahead and create your virtual environment using the following command.

Now activate your virtualenv and install the requirements.

For Linux based systems

For Windows,

After activation install Flask.

This should install all the necessary Flask modules. Implementation of Flask Before implementing Flask, we will just take a look at our project structure.

All we did was to create an app.py and then a folder called templates and inside templates we have index.html.

that’s it our app.py is done.

Now open our index.html and type some content that you want to display onto the webpage.

Now we are almost done. Just open your terminal and type

This should run the flask app and you should see something like this.

In this article, we have seen Flask and its importance in today’s world. We even saw some of the major companies that use Flask. A simple implementation on how to install Flask and use it is demonstrated.

Flask opens a huge set of possibilities and if you want to create awesome applications quickly, Flask is your go-to. They are perfect to deploy your AI models. Explore more about Flask. I am sure you will be amazed at how simple yet powerful it is. I hope this article was useful to you all. Will see you in my next article until then, as always code learn repeat☕

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