I have always been fascinated with barcodes and QR codes. I theoretically knew how barcodes worked but I wanted to solidify my understanding by making one from scratch. In this article, I will take you on a guided tour of how barcodes work and how we can make one from scratch using Python. I will focus on Universal Product Code type A (UPC-A) for this tutorial.
Are you tired of spending tons of money for Mailchimp? Let me show you how to set up listmonk, a free and open-source newsletter and mailing list manager. We will be using docker-compose for orchestration and NGINX + certbot for automated SSL certificates. The final setup will cost you a little bit of effort and $0 in running costs as long as you don't send more than 50,000 emails.
I recently had to make a custom ebook stamping and delivery service for Practical Python Projects book. In this article, I will explain why and how I made this service using AWS lambda as the serverless platform. I will also show you how to use S3 for file hosting, SQS for message passing, SES for automated email delivery, and PyPDF2 + Reportlab + pdfrw for PDF stamping.
I am currently working on a React based app and had to implement prerendering for SEO purposes. In this post, I will show you complete steps for running the prerender.io service on your own server and serve it via NGINX. This will help you improve your app's SEO.
I recently had to implement JWT based auth in a React and Flask based web app. In this post, I will show you how to implement login functionality step by step and deploy the resulting web app using NGINX and Gunicorn. We will be using flask-praetorian for JWT token generation.
Have you ever wanted to post stories on Instagram in an automated fashion? In this article, I will show you how to use Python and the Instagram-API-python library to do exactly that. Fasten your seatbelts and let's get started!
If you are bummed to find out that your local PD and FD have moved to a digital or trunked mode then you aren't alone. In this post, I will show you how to use a cheap RTL-SDR dongle and the SDRTrunk software to snoop the trunked radio traffic in your area.
I just released the alpha version of my much anticipated Practical Python Projects book! It has been two years in the making and I am super excited about its release. In 320+ pages we will implement 12 different projects. I wish I had access to a similar book when I started learning Python.
Have you seen movies where people use a radio to track police? Maybe you have seen the movie Stranger Things and saw the main characters using a radio and an antenna for communication. In this tutorial, I show you how to use a similar portable Baofeng handheld transceiver to track the local police/fire department. It is a lot of fun!
Have you ever had to process some messy data? I recently worked on a project where I had to tame some messy data using Pandas in Python. In this short tutorial, I will teach you some data wrangling basics that will help you process most datasets you will ever encounter in the wild.
My Microsoft internship ended on 31st August. I had a wonderful time there and learned a lot of useful tips/lessons. In this article, I share 5 lessons that helped me the most. If you want to improve your internship/job experience make sure you read this.
I sat down with Justin Duke, an engineer at Stripe, and talked about tech, startups and time management. Justin runs two startups and manages two weekly newsletters (along with a plethora of other things). Come learn about how he does it all!
We all use JPEG images every day and almost every software supports JPEG but most of us don't know how the JPEG compression algorithm works under-the-hood. Come with me on an adventure where we uncover and understand the JPEG algorithm and then write some Python code to decode a JPEG image.
After using apktool for reverse-engineering android apps I learned about Frida. Ever wondered how you can use Frida to snoop around Android apps? Learn how to do that in this step-by-step tutorial where we take a look at the Nike Run Club app.
I had always wondered how Android apps are reverse engineered. If you have ever wondered the same then this article will guide you through the whole process. We will be unpacking, modifying, repacking, and installing an Android APK.
Have you ever found yourself unable to connect to a public WiFi just because your browser couldn't open the login page? Learn a simple trick which always works.
Learn about the potential Google Analytics alternatives that you can use to track useful metric without invading your user's privacy
Learn about some general scripting tips that will help you level up your scripting game. I learned them the hard-way but you don't have to.
I talk about the steps I took to migrate a Django 1.7 (Python 2.8) project to Docker, UWSGI and NGINX on a new server. The steps for new Django projects are also similar.
I recently moved pythontips.com from Wordpress to Hugo. I talk about the rationale for doing so and what benefits (if any) I have observed after this migration.
If you are thinking about migrating from WordPress to Hugo (or any other static site generator) you can learn from my experience. I talk about the steps I took. You will be able to preserve the comments and SEO.
I have been working quite a lot with Docker for my current project. If attach & exec have been giving you some trouble then this post will teach you the difference b/w both. You will also learn about when to use what.
A friend recently received an email from a Hacker demanding $2000 in Bitcoin. In this article you will learn how the hackers get the emails and passwords of unsuspecting users and whether you should actually send them $2000 or not.
Have you ever been curious about how Software engineering within SpaceX works? I did some research and compiled my notes in this article. There are also some insightful comments from the readers at the bottom.
Whenever I set up a new server I make sure I set up passwordless SSH login. It makes it easy to get into a box without typing in the password every single time. Learn about how you can do something similar for your servers.
I recently started doing digital portraits a bit more seriously. Look at a portrait of Benedict Cumberbatch that I made in ProCreate using a borrowed iPad.
Do you know what generative algorithms are? I talk about how I used generative algorithms and Processing to make portraits for my advanced studio projects class.
Have you used Processing before? It allows you to create sketches using programming. Take a look at some looping GIFs I made using Processing. I will share some resources that you can use to make your own perfectly looping GIFs.
My blog uses Staticman for comments and recently got a lot of fake comments. I used the GitHub API to filter out and mass-delete comments. Learn about how you can do something similar.
I wrote this article when I was looking for new internship opportunities. I got one with the Azure Cloud Networking team at Microsoft.
Take a look at the final project I made using Arduino, Raspberry Pi & a couple of sensors for a digital studio class. I have also written some in-process articles about this project in the past.
In summer 2019, I interned at a communication startup called ASAPP in NYC. I talk about my experience and what I learned during my time there.
I came across this teaser on Reddit. It took me some time to figure out the solution. Look at the question and see if you can figure it out on your own before looking at my detailed writeup.
We all like receiving email notifications whenever someone replies to our comments. Learn about how to setup email notifications for Staticman comments using Mailgun.
No blog is complete without comments. There are a lot of options out there which allow you to add comments to your static blog. In this article, I talk about how to setup Staticman for your Hugo blog. Process is similar for other static site generators.
Someone recently reached out and asked me how to setup a dev environment for SciPy. Read this article to find out how.
I have been working with Golang quite a lot. This is my first time working with it professionally. I share some methods for checking key existance in maps in Golang.
Oftentimes people complain about Python being slow without realizing that there are simple solutions to their problems. Learn about how to leverage multiprocessing in Python and speed up some of your scripts by 10x or more.
I wasn't aware about the different solutions for running Python in the browser so I invited Shaun from Anvil to give us a run-down of what is available out there.
I am moving to New York for the summer and, therefore, I am looking for a single in the city. If you have any leads please send them my way!
I have been using Nike Run Club for years. I liked using it but was super unhappy with the fact that I wasn't officially allowed to export my data. I went ahead and reversed their API. Learn about how you too can extract your data from NRC.
Tileserver-gl is an amazing project that allows you to make custom styles for maps. Learn about how to make beautiful styled map posters using tileserver-gl. The best part? It is completely open source!
I spent the full summer writing Bash cronjobs for a research project. I had to learn far too many things the hard way. I am hoping that this article will help you spend less time stumbling around and more time producing useful results.
Third part of my three part series about Arduinos and sensors. Learn how to conenct an LCD with Arduino and how to display data on it.
Second part from my three part series about Arduinos and sensors. Learn about how to connect temperature and photo sensors with Arduino and extract useful data from them.
First part from my three part series about Arduinos and sensors. Learn about how to connect the Yl-69 soil sensor with Arduino and get useful data from it.