Memes and Principles, Intent

This is a prelude to an upcoming post where I intend to speak about Atom Entries as some kind of "simplest thing that could possibly work" (for the specific purpose of representing manifests of resources ("resource" as the R in URI (and in RDF, of course) — i.e. the resources of the web, and the mind (perhaps even "the world", but I doubt it))).

The prelude is just some thoughts about a couple of principles.

First: the simplest thing that could possibly work. A phrase often quoted and often misapplied. This is common knowledge, and many clarify things by interpreting what "possibly work" means. I won't. I'd just like to rephrase it as "the simpler thing that actually works". It's useful since it both hints that there can be more complex/complicated things (see #3 and #4 in The Zen of Python) that don't actually work (for some arbitrary meaning of "work", admittedly), and (obviously) that there are simpler things that don't work at all (less or more simple than the one that works — this is the heart of the problem). I feel this phrasing avoids the confusion the original one often causes (it just seemed to be a simpler way of saying it that still works..). So, to repeat: just say "the simpler thing that actually works". It works.

Second: just a recap of an old joke of mine regarding the principle of DRY. I very much do prefer if programming practise adheres to that one. There's too much code that suffers from MOIST. Still, I advice you to avoid to DRY until SHRIVELLED. (Those sure are acronyms. Please do hover.) This is related to the first principle above, and I mainly mean that some practises, such as heavy use of metaprogramming, simply performs too much reduction to make the intent clear even to the appropriately trained eye. Mileage will vary, but as many others have already advised: don't be too clever. It will bite others, and you as well. (Ok; honestly, my main intent was probably just to make a pun out of a perfectly sane advice.)

I will probably repeat this.

[Side note: It's funny. Just this last week I've noticed I habitually misspell "intent" as "indent". I had to correct myself about three times while writing this. Obviously my prolonged use of Python has caused these two distinct words to conflate in my mind. I never indented that.]

OMG! Snakes on a Phone!

So, I got this new cell phone from work. A Nokia 6120 Classic, which has just the size and features I wanted (and more, I'm sure). I picked the white/silver model, to go with my kitchen supplies (in honour of the fact that with Series 60, you can basically install the Kitchen Sink if you so choose to).

Going further, I of course wanted to play Monkey Island and such on the amazing ScummVM. Well, admire the running of; actually playing through them might be a little straining.. Though great screen clarity makes it quite possible to discern the orange and pink on the red herring you steal from the Loom™ seagull outside the Scumm Bar kitchen, it's quite thumb-numbing to actually snatch it in time..

And then, surely, I couldn't wait to get to the real goodies: Python. Specifically, The Python for Series 60 distro by Nokia (open source). I knew it was quite capable, but seriously; it basically lets you p0wn your phone.

(Half a decade ago I had fun running Python on my old Psion Revo; but that didn't go much further than some file tinkering and exploration of new-style classes (metaprogramming and whatnot) during commuting. But this is different. The same. But different.)

You go ahead by following the instructions, basically downloading the PythonForS60_1_4_0_3rdEd.sis and PythonScriptShell_1_4_0_3rdEd.sis from sourceforge, wiring or beaming them to the phone and running them to install (py, then shell). I also got the PythonForS60_1_4_0_doc.pdf, and marvelled at its beauty. I mean, apart from greater parts of the Python Standard Library, a mere glance at the modules provided for S60 stuff gives you an impression of the power at hand:

graphics, e32db, messaging, inbox, location, sysinfo, camera, audio, telephone, calendar, contacts, keycapture, topwindow, gles, glcanvas

Now, I haven't gotten very far yet; mostly tinkered with urllib to download some stuff from the web (which just worked (after a nice confirmation dialogue from the phone to actually access the net)), rendering the obligatory mandelbrot and then peeking at the real deal by looking at the SMS inbox contents using the interactive console.

Or actually, using

$ screen /dev/tty.bt_console

from my OS X Terminal (iTerm really). Magically set up by simply following this excellent guide.

Perhaps screen scraping wasn't really what I thought of when wanting Python on the phone, but you can't deny it's cool to be able to (perhaps awaiting flatrate subscription to not drain my wallet in the process though).

Speaking of screens and webs again; damn that WebKit-based browser in the phone really worked! It actually ran the JavaScript-based SyntaxHighlighter, thus rendering the Oort Tutorial quite faithfully. I did not expect that (nor my rekindled desire for highly variable width web sites..).

[And speaking of Oort; I've added some somewhat nifty stuff (if I may say so) lately; accessible in the svn repo at google code for now. A release should be coming up. Pre- or post my planned split into core and web/publication stuff I haven't decided yet. There really is a working RDF-to-object mapper underneath the touted WSGI stuff (which is just a minimal layer).]

Now I should go on to do something productive (like shaving a yak).

Fvyyl Indeed

Oh. My. God. I had no idea.

From now on, I shall only do pynff-based OO. Or BB, as it were.

#!/usr/bin/env python
#-*- coding: rot13 -*-

qrs whfg_n_fvyyl_rknzcyr():
   cevag "Bu, ubj fvyyl guvf vf.".qrpbqr('rot13')

vs __anzr__ == '__main__':
   riny('just_a_silly_example')()

Yes, it runs fine. Try it. (Note: in Vim you can use g? on selected text. Just so you know.)

Alas, There is No Escape

I ought to resign my other programming language explorations and let my sanity be sapped by this: Lovecraft.

Now, should there not be an abundant amount of semicolons in that language? And of course endless oneliners with meaning conveyed through arcane convolutions of expression; going on and on like some overzealously nested functional language programming style where the meaning must not be divided into parts for the sake of avoiding stilted repetition and unrythmic stanzas of short bursts of statements — or am I wrong perhaps, ignorant of the truth behind the veils and not knowing what I say to thee?