Hosted by zabiyaka
Tue, 24 Aug 2010 21:50:00 in Tech stuff | permalink
paste python setuptools turbogears
It is often desirbale to decompose an application into several components. Perhaps one of the most common approaches is separating a model component that is responsible for data repesenataion and interaction with the database and then use it from other components. For instance, one of the other components can provide a sofisticated web-based UI to the model while another one implements a bare command-line interface.
In this situation each component is a subproject that is distributed as a
separate package, in the setuptools' sense. And view each component has its
corresponding directory in the project's VCS repository which contains a
everything that is typicaly necessary to build an .egg,
setup.py and whatever else the developer finds approprate.
A component, or subproject, usualy includes a number of modules which are
organized inside a Python package. While it is possible to name the components'
packages like yourappmodel, yourappweband
yourappcli, The Zen of Python says:
Namespaces are one honking great idea -- let's do more of those!
And applying to our example that means the packages should be named like yourapp.model, yourapp.web and yourapp.cli.
Here I'm going to show how I work with a project that uses setuptools' namespace packages.
As an example I will be using Posy, my current project that consists of three components: