I need some test ethers for Rinkeby and found out that the faucet is not working (I also don’t like that you have to tweet to get the ethers): Then, I found https://www.rinkebyfaucet.com/, which gives 0.1 testing ether for each address per day:

Tailpages Developer Tutorial Tailpages (Tailwind + Github Pages) is a Jekyll website template based on TailwindCSS, which can be hosted by Github for free. You can visit the demo site at https://harrywang.me/tailpages/. Key features are: Minimalist design inspired by the indigo template Elegant typography via TailwindCSS Typography plugin and Inter…

Setup free-hosted beautiful website without coding My team started to use Tailwind CSS a few months ago and I want to learn a little bit more about it so that I don’t feel like a complete idiot in some technical discussions :). So, I started a small project to design…

Human-Machine Knowledge Transfer — OpenAI debuted its largest language model GPT3 with 175 billion parameters back in May and started to open the API to selected people last week — you can check out the MIT Technology Review article and a blog post by Arram Sabeti to see many interesting generated texts (lyrics, stories…

Systematic Web Scraping for Beginners — Part I, Part II, Part III, Part IV, Part V In this last part of this tutorial series, I am going to briefly cover a very important topic: dynamic scraping. The example code can be found in the following repo: harrywang/scrapy-selenium-demo This repo contains the code for Part V of my tutorial: A Minimalist End-to-End Scrapy Tutorial (…github.com In real web scraping projects, you often cannot directly crawl…

I often use and study open-source code from the Internet and run into the following situation: I found a nice code repo on Github, clone it to my local computer, and then have to spend a lot of time just trying to get the code up and running because I…

Github Pages allow you to host static markdown/web pages (HTML and JS) for free. You only need a few steps to have a website up and running. I will show you how to build such a website using a course website as an example: https://harrywang.github.io/misy331/. Step 1. Create an empty…

Systematic Web Scraping for Beginners — Part I, Part II, Part III, Part IV, Part V In the previous three parts, you have developed a spider that extracts quote information from http://quotes.toscrape.com and stores the data into a local SQLite database. In this part, I will show you how to deploy the spider to the cloud. …

Systematic Web Scraping for Beginners — Part I, Part II, Part III, Part IV, Part V In Part II, you have extracted all the required data from the website and stored them in Items. In Part III, I will introduce Item Pipelines to save the extracted data into a database using ORM (SQLAlchemy) and handle the…