A nice way to keep app config in yaml format and load it into a attr accessible object

config.py

import yaml
from awesome_print.awesome_print import format as frmt
class AttrDict(object):
    def __init__(self, dct):
        self.dict = dct

    def __repr__(self):
        return repr(self.dict)

    def __str__(self):
        return frmt(self.dict)

    def __getattr__(self, attr):
    	print attr
        try:
            val = self.dict[attr]
            if isinstance(val, dict):
                val = AttrDict(val)
            return val
        except KeyError:
            raise AttributeError

with open("settings.yaml", "r") as f:
    settings = AttrDict(yaml.load(f))
    
# to use, from config import settings ; settings.secrets.twitter.key

This is an improved version of http://stackoverflow.com/a/11049696/1520364