When I need classes?

[Rustom Mody]

On Wednesday, January 13, 2016 at 10:57:23 AM UTC+5:30, Steven D'Aprano wrote:
> On Wednesday 13 January 2016 14:36, Rustom Mody wrote:
> 
> > 1. Python the LANGUAGE, is rather even-handed in paradigm choice: Choose
> > OO, imperative, functional or whatever style pleases/suits you
> > 2. Python LIBRARIES however need to make committing choices.  Users of
> > those then need to align with these.
> 
> I don't think that second one is necessarily correct. Look at the random 
> module: it is based on an OOP design, with classes random.Random and 
> random.SystemRandom doing the real work. But most people don't use them 
> directly, they use the procedural interface random.random, random.choice, 
> random.seed etc.
> 

Yes one can have more or less degrees of freedom. Are infinite degrees possible?
I believe not.

eg My example of re is strictly not correct: can use strings instead of re objects
Can use findall instead of search/match and avoid groping around in opaque match
objects
So you may conclude that the re module allows these degrees of freedom
But you cant bold res all the way into the syntax of the language (eg perl/awk)

Anyway these are side points
My main point is that when you sit on top of heavy-duty many-layered libraries
(worse frameworks... OP seems to be trying Kivy) then you have to align with
the opinionatedness of all the layers down to python.

Of course that is modulo the leakiness of the abstractions.
eg mostly python programmers do not need to know the underlying C...

Mostly...
And then someone asks about id/is/performance...