How to build a QR Code Generator in Python

Hey amazing people, today we are gonna build a QR Code generator in Python.

How QR Code Generator works?

Our QR code generator takes some data as input. That data can be anything like a URL or some text. And then it creates a QR code from that input data. And in the final step, the QR Code is saved as an SVG file. Noe since you have a rough idea of how our QR generator is going to work, let's move on to the Project Setup section and make this magic happen.

Project Setup

Before we jump to coding, we need to install one module for our project. We are talking about pyqrcode module which doesn't come pre-installed with python and hence we have to install it manually.

We can install this by simply running pip install pyqrcode command from the terminal. So let's do that.

pip install pyqrcode

Here we go it's done! Now let's move on to the fun part, the coding part.

Let's Code

Alright so remember the first thing we always do is import required modules into our project. In our case, we need to make use of pyqrcode module which we just installed onto our system. So now let's import it.

import pyqrcode

Awesome! So next thing we need to do is to get some user input to create a QR Code.

data = input("Enter the text or link to generate QR code: ")

Here we are simply using an input() function to obtain user input and storing it in the data variable.

Now it's time we create the QR Code!

qr = pyqrcode.create(data)

Here we are simply using pyqrcode.create() function which is a part of our pyqrcode module. This function will take our user input as a parameter and will generate a QR code. That QR code will then be stored in the qr variable.

However, we cannot see that QR code yet. To see it, we have to export it into a file. That can be easily done using another function... Here's how:

qr.svg('qr_code.svg', scale = 8)

Here we are using svg('FILE_NAME', scale = 8) function were we have to provide the name of the QR code file to be generated and a scale parameter which by default will be 8.

And here we did it. Now go ahead and try this one out on your own.

Source Code

You can find the complete source code of this project here -

mindninjaX/Python-Projects-for-Beginners

Support

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