>>> import __builtin__
>>> __builtin__.rubbish= 3
>>> rubbish
3

from mypackage.constants import *

class Config:
    """
    Borg singlton config object
    """
    __we_are_one = {}
    __myvalue = ""

    def __init__(self):
        #implement the borg patter (we are one)
        self.__dict__ = self.__we_are_one

    def myvalue(self, value=None):
        if value:
           self.__myvalue = value
        return self.__myvalue

conf = Config()
conf.myvalue("Hello")
conf2 = Config()
print conf2.myvalue()

import superglobal
superglobal.whatever = loacalWhatever
other = superglobal.other