Eduardo Zepeda's latests posts

If you have not yet decided to use Django and are investigating its features check out my post on the advantages and disadvantages of the Django web development framework .

The other day I was solving a kata in codewars , one of the steps of the problem needed a two-dimensional array, in more mundane words: an array of arrays. In Python it is super simple to create a two-dimensional array using the multiplication operator, as if it were numbers.

arr = [0]*5
#[0, 0, 0, 0, 0]

If you have no idea what I’m talking about, I have an excellent resource that can help you a lot: “Inmersion en Python”, totally free and in Spanish

You probably already know how to upload an image using a Django model, but what if we don’t want to upload one but multiple images in Django Framework?

Django installation

First we install Django using pipenv. We will also install Pillow since we will be dealing with images.

pip install django Pillow

Next we will create a new project and enter the newly created folder.

Why to use Python Framework like Django in a world where everything is Javascript? Is it really worth learning such framework in an ecosystem that insists on Frameworks written in Javascript? Well, I think so, and here are some of the reasons why you should use Django. And, in order not to lose objectivity, I will talk about the advantages as well as the disadvantages; you know that no solution is perfect.

Ngnix throttling allows us to limit the number of requests to a certain user. This is useful to prevent excessive requests from a user from keeping the system busy. On the other hand, it is also a way to deter brute force password attempts or even DDOS attacks.

If you are looking to optimize the performance of an application using Nginx I have a post where I give you some recommendations to improve nginx performance

Python 3.10 was announced and it comes with something that many developers were missing from other languages: the switch statement. Yes, that piece of code that evaluates an expression and compares it with multiple cases to decide what to execute. Python did not have it implemented and many developers resorted to certain tricks to imitate it.

I remind you that if you don’t know anything about Python I have a post where I talk about the book “Inmersion en Python” ; one of the best free books to learn Python from scratch.

After several weeks posting about Django I wrote a short post about React, about libraries, because man does not live by Python alone. These are some of the libraries that I consider most useful in React. For obvious reasons are excluded React-router, Redux and others too well known. As well as some React Frameworks such as Gatsby, Nextjs, Frontity and others.

If you want to learn React but don’t know Javascript read my post, where I talk about one of the best books to start with Javascript .

You want to use Django to relate one model to another using a foreign key, but the model you want to relate is a different one for each database entry. Django offers a solution to your problem, a Django generic foreign key called genericForeignKey and the ContentType model, which I talked about earlier.

The genericForeignkey field type is able to link to different types of models, allowing us to relate any other model to ours. Remember in the previous post I talked about ContentType? Well, now we will give it a practical application. If you want to review the previous post, visit my post where I talk about ContentType in Django

Did you know that Django keeps track of each of the models you create for your project in a model called ContentType? Read on to learn about it.

Sorry for taking so long to write! I’ve been busy moving the frontend of my blog to Frontity, a React framework for Wordpress, and also moving to a new apartment. Maybe I’ll talk a bit about Frontity in a future post. For now let’s get on with it.