Yahoo! Blueprint for mobile sites

Posted by Patrice Neff Mon, 21 Dec 2009

The past few days I created a mobile site for Memonic. During this I made use of some of the newly found knowledge from the past Webtuesday which Adrian Kosmaczewski was kind enough to share. See also my notes about iPhone web development from that event.

The goal of this mobile site was to get a broad device coverage. As we’ll create an application for the iPhone, it was especially important to get a nice site for all the other devices. During his talk Adrian mentioned the Yahoo! Blueprint framework and I was sold quickly.

The basic architecture is relatively simple:

The really nice thing is that as a developer you don’t have to worry about any of the device detection, HTML generation, CSS fiddling, etc. That’s all handled in the “Yahoo server” box.

For our internal evaluation I gathered the following list of advantages and disadvantages:


  • Very broad device coverage
  • Fast development
  • Image compression done by Yahoo
  • Less code


  • Mobile frontend hosted by Yahoo without any SLA (but transparent to the users, we can still serve it using the domain)
  • No HTML (we have to convert HTML to XForms XML – that’s a problem for detail pages on Memonic)
  • No custom design (though to some extent that’s coming next year)
  • No integration in Google Analytics (but we probably can use Yahoo’s own statistics tool for the mobile part)
  • Currently no price plan

Based on that list we decided to go with Blueprint for the moment. The architecture means, that whenever we have to migrate away we can probably re-use our existing code and build something similar to Yahoo! Blueprint ourselves. That would actually be a really nice open source project.

For now: thank you Yahoo! for offering a wonderful service.

Modular Python with eggs

Posted by Patrice Neff Wed, 15 Apr 2009

I did a presentation at the March user group meeting about using Python eggs. I hear a lot of bitching about Python’s packaging. Guido even managed to talk at lengths about the problems with it at his PyCon keynote talk. Here I am boldly saying almost the opposite: Python packaging rocks! It’s very easy to have a great workflow both for development as well as deployment using Python eggs.

Some notes from the presentation which you can download as a PDF.

First, I love how easy it is to get started with Python eggs. You only need to create a file which at it’s simplest can even be just one line. At Nektoon we try to create as small components as possible and then package them using setuptools. We even split up our Pylons frontend using paste.urlmap (we are already a 10 frontend applications after three months).

We then deploy those eggs into our internal pypi server. Creating such a server is laughingly easy. A web server with directory listings enabled is enough.

The eggs are automatically generated and published to our pypi server by Hudson. Whenever we check in a change, the test suite runs in a clean virtualenv environment. This also makes sure we have declared all the dependencies correctly. If all tests run successfully, then the egg is built and published to our pypi.

As a last step we automatically deploy those eggs to our trunk instance of the Nektoon infrastructure.

All of this was very easy to build thanks to all of the existing work in the Python world. So let me thank all the responsible people for this. And who knows, maybe I’m just in the honeymoon phase as I’ve yet to see something comparably easy and powerful in all the other environments I have experience in.

Setting sail again

Posted by Patrice Neff Fri, 12 Dec 2008

Today is my last day at

I have been involved with that company since the beginning of 2005 with the initial prototypes. After my time in Peru I then started as a full-time employee in May 2006. That was a few days after the very first version of had gone live. So I spent close to four years involved with the project and of that two years and seven months as an employee.

Now it’s time to sail to fresh territory again. Beginning first of January I’ll be working on Nektoon – a startup I’m co-founding with some friends. I’m not disclosing too much about it’s purpose yet. Just this: your information will become very fluid soon… I’ll stay in Z├╝rich – we’re renting some spare rooms from Liip.

I want to thank all the people at for the past years. It’s been an exciting trip to build that site from zero. I got to know many outstanding people and have formed some great friendships while working there. Also I advanced a lot professionally as I was able to work with and learn from true masters in various fields. I’ll always be thankful for that privilege.