Global variables for python applications

[James Mills]

On Mon, May 17, 2010 at 11:57 AM, John Nagle <nagle at animats.com> wrote:
>   For one thing, it's fine to share constants across threads, while
> sharing globals is generally undesirable.  Also, more compile-time
> arithmetic becomes possible.
>
>   Python does have a few built-in named unassignable constants:
> "True", "None", "__debug__", etc.  "Ellipsis" is supposed to be a
> constant, too, but in fact you can assign to it, at least through Python
> 3.1.
>
>   I think there's some religious objection to constants in Python, but
> it predated threading.

To be honest, classes work just fine for defining constants.
(Though in my own code I use ALL UPPER CASE variables as it the style).

--James