Python pattern for sharing configuration throughout application

Question

I have an application consisting of a base app that brings in several modules. The base app reads a parameter file into a configuration hash, and I want to share it across a

Answer 1

You could just:

import config

and have a global config module

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excerpts from my comments:

You can always add special rules for odd situations by just saying oddValue if isOddSituation() else config.normalValue.

If you want to have configuration modules be hierarchically subclassable (like my other answer describes), then you can represent a config as a class, or you can use the copy module and make a shallow copy and modify it, or you can use a "config dictionary", e.g.:

import config as baseConfig
config = dict(baseConfig, overriddenValue=etc)

It doesn't really matter too much which scope you're in.