Hello all,
Page one of the tutorial features a large picture of a lightbulb, next
to a statement of Philosophy:
"Django apps are 'pluggable': You can use an app in multiple
projects, and you can distribute apps, because they don't have to be
tied to a given Django installation."
The tutorial proceeds to import "mysite.polls.models" from various
files inside the /polls directory:
http://docs.djangoproject.com/en/dev/intro/tutorial02/#make-the-poll-app-modifiable-in-the-admin
http://docs.djangoproject.com/en/dev/intro/tutorial03/#write-views-that-actually-do-something
I think I'm stating the obvious: if your project is called "mysite"
and your app is called "polls", there should be no appearances of the
string "mysite" inside your /mysite/polls directory. That won't let
polls plug very well into "yoursite". I know changing your PythonPath
can get you to the point where you can say "import polls.models", but
this seems too foundational for the tutorial to gloss over.
>From my point of view, it's a further problem that "polls" appears
inside the app... over and over. Namespaces seem to have been
introduced to work around the inevitable problem of wanting to
instantiate an app twice. But I'd like to have differently-versioned
enlistments of the same app (in different directories) running at the
same time. Can namespaces help me, in a way that I don't have to
"import polls_alpha.models" in /polls_alpha and "import
polls_beta.models" in /polls_beta??
(I don't know much Python, but I wish there'd been some way to apply
the DRY principle to my app's name through "sys.modules[globals()
['__name__']]"...or some other magic).
What I'd really like to find are best-practices of how to scope
references at every level in the proejct. Right now I find myself in
constant puzzlement. Like, if your PythonPath is going to get you
access to polls.models from inside the mysite directory... why would
your mysite's settings.py refer to it as "mysite.polls.models" and not
just "polls.models"?
Thanks,
Brian
http://hostilefork.com
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