Vadym Zakovinko

Vadym Zakovinko

Solution Architect @ Django Stars

“Simple is better than complex; the former is easier to extend and improve. That’s why achieving simplicity is the most important part of my job.”

Featured articles

5 posts by author

python celery cookbook cover
Everyone in the Python community has heard about Celery at least once, and maybe even already worked with it. Basically, it’s a handy tool that helps run postponed or dedicated code in a separate process or even on a separate computer or server. This saves time and effort on many levels. Table of Contents An Introduction to the Celery Python Guide Celery Basics Primary Python Celery Examples Celery For Advanced...
How to build your own blockchain for a financial product
Technologies are changing fast; people are not. – Jakob Nielsen Blockchain is a relatively new technology that many deem is used only for buying Bitcoins. They try to implement it in whatever sphere comes to mind, whether it is fashion, education or healthcare. I would say it is okay — too little time has passed to determine which area of human activity can benefit the most from applying this technology....
Debugging Python Applications with pdb
Debugging isn’t a new trick – most developers actively use it in their work. Of course, everyone has their own approach to debugging, but I’ve seen too many specialists try to spot bugs using basic things like print instead of actual debugging tools. Or even if they did use a debugging tool, they only used a small set of features and didn’t dig deeper into the wide range of opportunities...
How-to-Improve-Django-Performance.-Optimization-Tips-cover
I frequently face a recurring situation when developers receive a task to make a performance optimization on Django. Pretty often they are trying to make it in a wrong way. In this short article I want to shed some light on the common mistakes, and show you the way I'm searching for bottlenecks. Database optimization I saw how people start the optimization of database queries that take about 5% of...
Django-Classifier or What Have I Done-cover
From time to time you have to build some properties for an object and usually those are just a bunch of fields for a model. With django-classifier you may do that in another way. It allows you to create models at start, and set the properties needed from the admin panel at any time. Let me show you two demo projects. First one is the “user profile” I’ve built for...