On 14/07/2014 23:32, Catherine M Moroney wrote:
Hello,
Pardon me for not using the proper Python language terms, but I hope
that people can still understand the question:
The problem: I'm writing a large Python program and I have a bunch of
parameters (whose values are static) that I want to make available to
the rest of the code with minimum overhead and duplicate processing.
I think that the simplest way would be to create a file called
"Params.py" and then simply have statements like a = 1, b = 2, etc.
in there (no classes, no methods, just a bunch of declarations). But,
some of these static parameters have to be calculated rather than simply
hard-coded.
I thought of creating a class called Params and having a bunch of
methods (decorated with @classmethod) that set/calculate the value of
all the parameters. Easy enough, but then I have to create a Params
object in every source file that uses these parameters, and that seems
wasteful.
The actual scope of the problem is very small, so memory/cpu time is not
an issue. I'm just looking for the most pythonic/elegant way of doing
this.
What is the recommended way of passing a bunch of static (hard-coded and
calculated) parameters to various parts of the code?
Thank you for any advice,
Catherine
Besides the answers you've already had, you might like to consider using
the enum module for some of your parameters. IIRC it's only available
in 3.4 but there's what I understand to be pretty much the same thing on
pypi.
--
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.
Mark Lawrence
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