[Tutor] Quick Pythonic Style Tips

Abdur-Rahmaan Janhangeer arj.python at gmail.com
Sun Jul 23 23:58:36 EDT 2017


nice, just wanted some "styling" guide rather than technical guides

you know doing things the python style rather than the python way

Abdur-Rahmaan Janhangeer,
Mauritius
abdurrahmaanjanhangeer.wordpress.com

On 24 Jul 2017 05:09, "Steven D'Aprano" <steve at pearwood.info> wrote:

> On Sun, Jul 23, 2017 at 07:02:09PM +0400, Abdur-Rahmaan Janhangeer wrote:
>
> > assert(... is liked by some strongly typed programmers
>
> Not just strongly-typed programmers:
>
> http://import-that.dreamwidth.org/676.html
>
>
> > data encapsulation might be depressing to some migrating coders
>
> "Data encapsulation" does not mean "data hiding". Python has excellent
> data encapsulation:
>
> - packages encapsulate modules together;
>
> - modules encapsulate classes, functions and variables together;
>
> - classes encapsulate object state and behaviour together.
>
>
> Compared to languages like C++ and Java, Python's data HIDING is weak.
> Python has no private, public, protected, etc.
>
> But even in the strictest languages like C++ and Java, there is usually
> some way to "defeat" the compiler and get access to private data and
> break data hiding. For instance, in C++ you can often do something like
>
> #define private public
>
> and in Java you can use reflection. The creator of Python, Guido van
> Rossum, understands that sometimes there *are* good uses for breaking
> data hiding (usually for testing and debugging). Because Python is an
> interpreter where most features are done at runtime rather than compile
> time, implementing data hiding in Python would hurt performance, and
> there would be some way to break it anyway.
>
> So why bother?
>
> Instead, Python is "for consenting adults". Data hiding is very simple:
> the developer flags objects they want to keep private with a leading
> underscore:
>
> _private
>
> and that tells you that this is private and you shouldn't touch it. If
> you decide to ignore this and touch it anyway, then:
>
> - either you have a good reason, and that's okay;
>
> - or you are a "consenting adult", and if your code blows up,
>   well, that's your own fault and don't complain to us.
>
>
>
> --
> Steve
> _______________________________________________
> Tutor maillist  -  Tutor at python.org
> To unsubscribe or change subscription options:
> https://mail.python.org/mailman/listinfo/tutor
>


More information about the Tutor mailing list