For parameter passing like your #2, I have packaged them into a
dictionary and passed that around. It was easy enough, and worked well.
The only potential problem is in documenting the key/value pairs the
dictionary is supposed to contain. You had better make sure it's made
clear somewhere, preferable where it is consumed.
For "global" values, sure, put them in a module and import them as
needed. Just make sure that none of your code is going to mutate those
values, or you will end up with mass confusion. I suppose you could
make them be properties that have no setters, if you want to go to that
trouble.
On 11/14/2022 12:14 PM, Stephen Tucker wrote:
Hi,
I have two related issues I'd like comments on.
Issue 1 - Global Values
Some years ago, I had a situation where
(a) I could supply low-level functions that carry out tasks,
(b) I needed those functions to communicate with each other, but
(c) I had no access to the module that invoked my functions.
In order to achieve this, I hit on the idea that I also supply a module
that I describe as a "global values" module. This module …
(i) … defines the values that the functions use to communicate with each
other;
(ii) … is the subject of an import statement in each of my functions;
(iii) … initialises its values at the start of each run (since the import
only carries out an actual import once per session);
(iv) … acts as a repository for the values thereafter.
This solution works well.
Given that I am not particularly concerned about efficiency,
(1) Is this a reasonable way to achieve this goal?
(2) Do you know of any better ways?
Issue 2 - Passed Parameters
I am now facing another situation where I am wanting to pass 6 or 7
parameters down through several layers of logic (function A calling
function B calling ... ) and for results to be passed back.
Having had the idea described above, I am considering using it again to
save all the parameter-and-results passing.
I see nothing wrong with doing that, but I may well be missing something!
Comments, please!
Stephen Tucker.
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