Pipe operator in Elixir is great, you can compose your functions naturally. However, there are times when you want to pipe the input to the second argument. How would you do that? Desugar iex>…

With Ecto 2.0, there is support for Postgres schema or multiple databases for MySQL. What I am trying to do here is to use Postgres schema to achieve multi-tenancy, and of course using Ecto.…

In the previous post, I showed you how to implement basic Celery task that make use of @task decorator and some pattern on how to remove circular dependencies when calling the task from Flask view.…

Recently I had the need to create a homebrew external command to extend homebrew default behavior. My goal is to extend brew deps command by creating a new command brew deps-group. Executing the command will…

Finally had a chance to play around with Kaggle challenge, and bike sharing demand seems to be the easiest to tackle - no domain expertise required or atleast very minimal. This is going to be…

I was reading reading about convolution matrix which was brillianty explained by Colah. If you're looking for good blog to follow, you might want to add him into the list. One of the application of…

I've been toying with OpenCV lately and surprisingly it is pretty easy to implement face-tracking using OpenCV. However, OpenCV documentation is a bit lacking especially with its Python binding. Installing OpenCV In OSX (yes, I've…