Archives 2011

Finally got a few minutes to poke a toe into the world of Android development.  Started the installation of the Android SDK for Ubuntu (Oneiric).  Eclipse won't start.  Segfault just after telling it where the workspace should be.  Apparently no one has ever changed the default working directory in the first dialog they ever see ...

Shiny new Android dev environment.  Start reading through the documentation (yeah, a bit retro), okay, Intents seem rocking... oh, the intro just sort of dumps you off in the middle of nowhere... well, let's look at the familiar stuff; OpenGL should rock with everything being modern and shiny.

GLES 1.1 only on 2.1! (Which is ...

My (2 year old) son likes screaming at the OLPC "Measure" application, so I'd like to have something like that for all of our computers (i.e. something that displays audio as a simple view that lets you see your own voice).  SilleScope is the result.  At the moment it only has an ALSA source (i.e. ...

D'Arcy asked if I could port basicproperty, basictypes, wxoo, etceteras to Python3.  Not really high on the priority list, but why not dash it off; add 2to3, see happy Python3-ers.  Will log any issues as they arise here...

Python3.2 testing virtualenv can't install anything (not even pip).  Seems that the distribute and distutils code are ...

Mike Bayer mentioned in comments yesterday that one can configure SQLAlchemy to use one session with multiple database connections, so I decided to play with it tonight.  This is in the context of a TurboGears 2.1 app with SQLAlchemy 0.5.8, btw.

Documentation for how to setup the mapping isn't particularly helpful about best practice for ...

Set out to make an app use two different databases today; one for a high-write-volume set, the other for low-volume mostly-read set.  It's a TurboGears 2.0 application using SQLAlchemy.  I'd half-way hoped for "tell these tables they're in that db" and then have the ORM figure out all the magic of which session to use ...

Some things it occurs to me that I'd like to see in a new Python profiler:

• High resolution, accurate, captured data (obviously)
• Trace every line executed (yes, every line)
• Trace every call operation, i.e. CALL #32 of function #45 took 0.0003s and have a record of CALL #32 which details what *it* called, its timing, ...

Searching for links to some of my presentations from PyCon (particularly the audio/video).  Lots of links to no-longer-existing pages at PyCon.org.  There's an unofficial mirror that at least covers back to 2009, but most of the older stuff seems to have black-holed.

Globalsub is a mechanism to allow you easily replace an object throughout your interpreter.  This is normally done to make it easier to test.  You can stub out objects which have side effects for most of your tests and just test those functions in carefully isolated environments.  It comes from the Mocker codebase originally, but ...

After the hiccups of a few days ago where suspend/resume didn't work for a day or so, my laptop seems to have settled into a happy place.  Suspend/resume is now working, and I haven't had any hard-hangs where the machine becomes unresponsive (which was why I upgraded to the backported KDE 4.7.1).  Which is to ...