datapythonista blog

pandas 3.0 has just been released.

Introduction Comma-separated values (CSV) are an extremely popular format to store tabular data because of their simplicity and how easy is to write them.

Introduction At the time of writing this post, we are in the process of releasing pandas 2.0.

The problem We want to find out which are the top #5 American airports with the largest average (mean) delay on domestic flights.

This week we organized a round table with people involved in the management of data projects.

Some context This post is mainly a technical post on what's the status of the pandas documentation.

Some exciting news.

Last week took place in Bilbao, Spain, EuroSciPy 2019.

Leo Breiman was a distinguished statistician at UC Berkeley, known among other things for his major contributions to CART (decision trees), and ensemble techniques, mainly bootstrap aggregation.

Today I've got my new Dell XPS (with Ubuntu preinstalled), and this is the procedure to set it up, and get my perfect working environment.

While git is surely one of my favorite tools, and increases my productivity in a sometimes unbelivable way (like when working on 3 or 5 features at the same time), some times there are operations that can be a bit tricky.

It's been a while since I wanted to move my blog out of blogger.

The past 10th of March took place #pandasSprint.

Just as a quick disclaimer, this post is about my personal experience and opinions at NIPS 2017, and I'm not an AI researcher, I work as a data scientist in the industry.

Contributing to open source is one of the most rewarding experiences one can find.

This is a post about my experience at PyData London 2017.

This last weekend I went to my third PyData, the one in London, and it's been such a great experience.

What do I do after installing Fedora 23 MATE-Compiz?

This is a short note about how I set up my "data scientist" environment.

Installing Google Earth in Fedora is trickier than it should.

Here there is a blog post on how to install Skype on Fedora 21 by quickly creating an RPM package.

I think LATEX is simply amazing by itself.

For some reason, brother printers (at least mine) do not take into account the settings specified for the printer in the regular way (Gnome settings in my case).

While there are some cool things in Gnome 3, I think mostly everyone will agree that there are many design mistakes.

While I love Postgres, I get some problems every time I want to do the simple operation of creating a database with an associated user if it's been a while since the last time I did it.

After all these days at EuroPython, there is a thought that keep me thinking.

While it's been a long time since the first stable version Python 3 was released, it's not yet available on several operating systems.

Today I discovered Joel test, a test to evaluate software companies.

This is a simple guide on how to do simple branching operations in Mercurial.

First step is to let Google host your JavaScript library of choice for you.

Python debugger (pdb) doesn't work on App Engine SDK as usual.

Today I've been researching on Linux and Debian booting.

Just few hours ago, Django's new localization system has been commited to trunk.

Here you have my proposal for Google Summer of Code 2009.

Until now, if you had to develop an online store in django, you had two options, use satchmo, or write your own code.

Some times it can be useful to serve our site content with little differences depending on the visitor operating system.

Those days there is some activity in the django model translation area, specially for the two new projects that joined django-multilingual and transdb to achieve this: django-transmeta and django-modeltranslation.

Here you've a simple function to avoid a python script to be executed more than once at the same time: def use_lock(func, lockfile): if not os.path.exists(lockfile): with open(lockfile, 'w') as f: f.write(str(os.getpid())) func() os.remove(lockfile) return

Some time ago I needed to add an IP field to my model with more records (some hundred thousands).

django-transmeta is a new project that provides django field translations in a simpler way than existing ones like django-multilingual and transdb.

Modern browsers escape urls automatically before sending them to the server, but what happens if your application serves http requests to clients that doesn't escape urls?

Today I find a solution for one of the most common problems I had with CSS, vertical centering.

I had to compare two XML strings for some unit tests, and if you want to do it without considering the indentation, or the newlines, it is a little bit tricky.

Some time ago I purchased a Brother multifunctional priner/scanner/fax, the MFC-235C.

Everything is changing on Django those days, and many people contacted me because StdImage stopped working with trunk.

Few days ago a new search engine was published, and many media covered the it.

Some time ago, I wrote a post in this blog about the essential Firefox extensions for developers.

In this article you'll find some tips, that could be useful for avoiding problems or extra work when translating your Django application. 1.

On July 13th, DjangoCon 2008 was announced, and the illusion and nervousness started for many djangonauts.

Here you have what, from my point of view, is the status of django i18n.