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django

A collection of 16 posts

Send JSON Graph Data from Django

Send JSON Graph Data from Django

I'm trying to write a Django application to deal with my finances. I've got a nice page listing various transactions, but I thought it'd be nice to have a graph too, to see where I actually am on the spot. To do this, I&

Build a Django Docker Image with Cx-Oracle

Build a Django Docker Image with Cx-Oracle

TL;DR: Don't use alpine images. There's a glibc issue. We added a cx-oracle dependency to one of our django apps. As the previous image was just an alpine basic (python) image we needed to put in place a process to build the new image. Initially,

DRF: What is 'source' in Fields?

DRF: What is 'source' in Fields?

For a couple of days I've been trying to de-serialise a JSON to a model. My problem is the model and the JSON have different fields, mainly to keep the model pythonic and independent of a specific JSON source. So... I've been trying to use the

Timestamp to DateTime Serializer Field for DRF

Timestamp to DateTime Serializer Field for DRF

I'm currently trying to deserialize JSON data to a Django model. This is quite straight forward for most numeric fields, but I have a `DateTime` field which is stored as a timestamp in the original JSON.

Save Pandas DataFrame as Django Model

Save Pandas DataFrame as Django Model

TL;DR: use bulk_upload coupled with a comprehension to speed up loading. Initially, I started to convert the data frame to a Model object row by row and save it. While easy, it's also arguably the slowest method to load records, because the save() call performs a

Load Templates with Pebble

Load Templates with Pebble

Pebble is a templating engine. It looks particularly familiar to me because I have been using Django. You have access to blocks, include/import features, loops etc. This post is a simple exercise in loading some templates. Prerequisites * I've been using Eclipse IDE, but you can use whatever

Change a django password manually

Change a django password manually

The other day I've been confronted with a strange situation: I forgot the admin password for a django application. I was playing with installing my own pypi repository, I've configured and deployed a test application and, after a couple of weeks, I forgot the password. I

Python classes to generate CSS

Python classes to generate CSS

A while ago I got fed up with CSS and its cumbersomeness. As my poison of choice is python, I was thinking it would be quite useful to have a bunch of classes capable of generating CSS automatically in python. One could have a base class, a set of properties,

Formless Step in FormWizard

Formless Step in FormWizard

Sometimes you'd need to show a purely informational page as part of a FormWizard. As far as I could see, there are two solutions to the problem: 1. If the info is something like a summary, you have it available in the "success" page (the one

Create Data Once in a FormWizard

Create Data Once in a FormWizard

At one of the sites I'm building I need to walk users through a registration process: 1. Select a supported tool 2. Generate an ID 3. Create a configuration based on the previous two steps To do this, I chose to use a FormWizard with three steps, one

Easy django applications with cookiecutter

Easy django applications with cookiecutter

Now I'm trying to create a bunch of django applications and I've got tired of creating everything from scratch. So, here are the steps I'm using to easy create a new django app: * Create a new virtual environment. This is vital. It allows you

Make pyflakes/pylint ignore unused imports

Make pyflakes/pylint ignore unused imports

Sometimes, you need to add an import without explicitly using it, just to have stuff defined. In such cases, both pyflakes and pylint generate messages, which can be annoying. For example django-appconf has a class-based configuration like so: # -*- coding: utf-8 -*- """ django appconf configuration

Speed-up easy-thumbnails on S3

Speed-up easy-thumbnails on S3

I was developing a small app as a playground and confidence builder, choosing django, heroku and S3 as resources. One of the packages used is easy-thumbnails. Behaviour I chose to use the easy-thumbnails app with S3, a possibility granted by the storages framework. At a glance, everything works OK; thumbnails

Improve S3Boto Django-Storages Performance with Custom Settings

Improve S3Boto Django-Storages Performance with Custom Settings

Django-storages is a great piece of software. It provides an uniform API for all kind of file storage backends, including Amazon's S3. I use it for storing assets (the /static/ and /media/) for my django app. However, particularly with the /static/ assets, I've noticed firebug/yslow

Deploy django application with private dependencies on dotcloud

Deploy django application with private dependencies on dotcloud

Update: This is an outdated entry. DotCloud went to cloudControl, which joined ExoScale These days I'm trying to deploy an application on a something quicker than my shared host (dreamhost.com). Not that there's anything wrong with this provider (this blog is on it), but the