How to Generate QR Code in Python Using Segno

9 mins0
How to Generate QR Code in Python Using Segno

In this guide, we will learn how to generate QR code in Python using Segno. QR codes have become an essential tool for businesses, developers, and individuals to share information quickly and securely.

By using the Segno Python package, you can easily generate QR codes with different styles, formats, and outputs. This article will walk you through detailed steps and real-world examples of QR code generation with Segno, focusing on generating QR codes for Codewolfy .

Why Do We Need QR Code Generation?

QR codes provide a fast and reliable way to share data such as website links, contact details, product information, or payment details.

Instead of typing a long URL or text, a simple scan with a smartphone camera is enough to access information. This makes QR codes widely used in marketing, payments, events, and personal projects. That’s why QR code generation in Python is a powerful and practical solution.

Why Use Segno for QR Code Generation?

In this guide, we will use the Segno package to generate QR codes in Python. Segno is a lightweight and reliable library that allows you to create QR codes quickly without requiring any external dependencies.

It supports both standard QR codes and Micro QR codes, and provides multiple output formats such as PNG, SVG, PDF, and EPS. With its ease of use and flexibility, Segno is a perfect choice for developers who want to add QR code generation to their Python projects.

Advantages of Segno Package

The Segno Python package is one of the best tools for generating QR codes. Here are the key advantages:

  • Pure Python library with no external dependencies
  • Generates standards-compliant QR codes
  • Supports Micro QR Codes and standard QR Codes
  • Provides multiple output formats like PNG, SVG, PDF, and EPS
  • Lightweight, fast, and reliable for both small and large projects

How to Install Segno

Before we explore examples, you first need to install the Segno package. You can install it directly from PyPI using pip:

pip install segno

Once installed, you can import it into your Python project and start generating QR codes.

Generate a Basic QR Code

The simplest way to start is by generating a basic QR code. This is often used to encode a website link so that users can quickly access it without typing. For instance, if you want to share your website at an event, a basic QR code is the best choice.

import segno
qrcode = segno.make('https://codewolfy.com/')
qrcode.save('basic_qrcode.png')

This code generates a PNG file containing a QR code for the Codewolfy’s URL. When someone scans this QR code with their phone, they will be redirected directly to your website.

Generate a QR Code in SVG Format

PNG files are great for digital use, but sometimes you need a scalable version for printing banners, posters, or high-resolution designs. SVG format ensures that your QR code doesn’t lose quality no matter how much you scale it.

import segno
qrcode = segno.make('https://codewolfy.com/')
qrcode.save('qrcode.svg')

As per this example it will create QR code for given context and generate SVG file for it instead of traditional image.

Generate a QR Code with High Error Correction

Sometimes QR codes are printed on surfaces that may get scratched, folded, or partially covered. High error correction ensures that even if up to 30% of the QR code is damaged, it can still be scanned successfully.

import segno
qrcode = segno.make('https://codewolfy.com/', error='h')
qrcode.save('qrcode_high_error.png')

Here, the parameter error=’h’ creates a QR code with the highest error correction level. This is especially useful for outdoor posters, marketing campaign, packaging, or merchandise where the QR code might face wear and tear.

Generate a Micro QR Code

Micro QR codes are smaller versions of QR codes, designed for cases where space is limited, such as product labels or small business cards or product brochuers.

They store less data but are still efficient for short URLs or codes.

import segno
qrcode = segno.make_micro(‘https://codewolfy.com/’)
qrcode.save(‘micro_qrcode.png’)

It create compact size QR code using sengo in python.

Generate a Colored QR Code

Adding colors makes QR codes visually appealing and brand-friendly. Instead of sticking with the traditional black-and-white style, you can design QR codes that match your brand’s colors or for attracting user on social media platform where image matters more than content.

With help of Python’s Sengo library, we can easily create colored QR code like below example.

import segno
qrcode = segno.make('https://codewolfy.com/')
qrcode.save('colored_qrcode.png', dark='blue', light='yellow')

As per this example, we have created same content QR code but different colors. This creates a QR code with a blue foreground and yellow background. You can customize the colors to match your company’s logo or event theme.

Conclusion

Now you know how to generate QR code in Python using Segno. From simple PNGs to scalable SVGs, high error correction, Micro QR codes, and colored QR codes, Segno provides everything you need for modern QR code generation. Whether you are building a website, promoting a business, or working on personal projects, using Segno makes the process fast, flexible, and reliable.

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