From: cl@isbd.net
Lawrence D’Oliveiro wrote:
> On Sat, 30 Aug 2025 09:02:46 +0100, Chris Green wrote:
>
> > Lawrence D’Oliveiro wrote:
> >>
> >> On Thu, 28 Aug 2025 19:05:55 +0100, Chris Green wrote:
> >>
> >>> The best I've found so far is the 'source':-
> >>> https://github.com/brgl/libgpiod/blob/master/bindings/
ython/README.md
> >>>
> >>> It has some Python examples but the coding style is very odd and
> >>> makes it difficult to follow what's going on IMHO.
> >>
> >> I had a look at one or two examples, but they didn’t look very
> >> “odd” to me. Any particular ones you are having trouble with?
> >
> > I worked it all out OK, I do write quite a lot of Python code. My
> > comment was rather that the style using 'with' and so on which makes
> > it rather diffcult to actually follow the sequence of calls required
> > to do simple things like 'set this line high' or 'read the state of
> > that line'.
>
> You don’t know about context managers? They’re a basic Python
> mechanism for ensuring proper cleanup. You consider it “odd” just
> because you hadn’t learned about that feature of Python?
Look, I'm a software engineer (Eur. Ing., FEANI) with well over 50
years of programming experience in all sorts of languages.
Yes, context managers are a 'good thing' but using them to help
**understand** how the basics of a package work is not, IMHO, a good
idea. First show how to do something **then** emphasise that you
must release resources and say that using a context manager is one
way of doing it.
Someone unfamiliar with Python and/or someone who is not an
experienced programmer is much more likely to be the audience for
these examples. The more professional/skilful people will probably
simply dive in to the API documentation.
--
Chris Green
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