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Creating your own local proxies

By LeafStorm filed in Utilities

Sometimes, you don't want to prefix whatever you are sharing in your thread local with g. for some reason. To solve this problem, you can create your own local-type proxy objects with:

from werkzeug.local import LocalProxy

whatever = LocalProxy(lambda: g.whatever)

Of course, this can be used for other things besides just g.

from werkzeug.local import LocalProxy

method = LocalProxy(lambda: request.method)

Now that Werkzeug 0.6.1 is out, it's really more of an AnythingProxy than just a LocalProxy.

This snippet by LeafStorm can be used freely for anything you like. Consider it public domain.

Comments

Use case by LeafStorm on 2010-05-07 @ 22:23
I discovered this neat little trick after I had written a bunch of code that saved directly to session. After I decided to use an external session store (actually CouchDB), I didn't want to rewrite it all, so I created a LocalProxy named session and switched the import.