Roy Tang

Programmer, engineer, scientist, critic, gamer, dreamer, and kid-at-heart.

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Aug 2019

Back when I was still learning Python in 2008, one of the first “fun” scripts I wrote was a text generator using Markov chains. I’d run it against all the chat logs I had with people at work and serve the results from a webserver on my computer. THe results were often amusing and sometimes hilarious. Since I’ve been going through my old scripts lately, I thought I’d update that script to Python 3 (read: add parentheses around print params and use pathlib) and run it against all the posts on this here site.

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Posted by at /  software development  python / Syndicated: / 0 / 162 words
Ever since I started learning Python back in 2008ish, I’ve been using it as my primary scripting language for various tasks such as processing log files, organizing my own file system, processing stuff on this blog, and so on. A lot of it is basically moving files around. In the days of Python 2, that involved a lot of imports of different libraries like os, shutil and glob. It can become a bit messy with so many imports, and I often can’t remember which import I need for a particular case and end up having to search for the documentation (or stackoverflow, let’s not kid ourselves here).

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Posted by at /  software development  devnotes  python / Syndicated: / 0 / 316 words

Feb 2019

A while back I started a Twitter trivia bot as a weekend project. That bot is still up and running on Twitter, you can check it out there! But today, I thought I’d write about the answer-checking mechanism used by the bot. It was a bit interesting to me because it was the first nontrivial use I had for Django’s unit testing framework. I’m not too keen on unit testing web functionality (something I still have to learn), but this seemed an appropriate first use of a unit test framework for several reasons:

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Oct 2018

Ten years ago this month, I started studying Django by trying to build my own blog application. I found the code lying around while I was going through some backups lately. It’s way out of date, it uses an early version of django. I thought of bringing it up to speed, but that didn’t seem practical. Instead, for archival purposes, I cleaned it up a bit and uploaded the code to a github repo.

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Mar 2017

I’ve been hesitant to try Python 3.x because it’s not backward compatible with Python 2.x which I’ve been using for scripting since forever. But recently I found out that since Python 3.3, they’ve included a launcher in the Windows version that supports having both versions installed. You can use the launcher to specify the Python version to use at the command line (it defaults to whichever version was installed first):

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Feb 2017

I had been meaning to try writing a Twitter bot for a while now. I figured a trivia bot would be pretty easy to implement, so I spent some time a couple of weekends to rig one together. It’s (mostly) working now, the bot is active as triviastorm on Twitter, with a supporting webapp deployed on http://trivia.roytang.net/. The bot tweets out a trivia question once every hour. It will then award points to the first five people who gave the correct answer.

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Jan 2017

So the other day I was reworking a Python script that I had been using for years on my home PC to manage and categorize some downloaded files for me. This time I wanted to add some smarter behavior to make it more able to figure out when to group files into folders without constantly needing manual intervention from me. To do this, I needed to persist some data between runs – so that the script remembers how it categorized previous files and is able to group similar files together.

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Roy Tang is a:

roytang.net is a personal site, an E/N site, and kind of a commonplace book; I post about a random assortment of topics that interest me including software development, Magic the Gathering, pop culture, gaming, and tech life. This site is perpetually under renovation.