It might be a silly thing to do in practice, but is it possible to do something like:
from data import myvariables
class Example():
    def __init__(self):
        self.* = myvariables.*
instead of doing:
from data import myvariables
class Example():
    def __init__(self):
        self.variable1 = myvariables.variable1
        self.variable2 = myvariables.variable2
        ...
myvariables is just a file that contains a bunch of variables like variable1 = 1; variable2 = 'string', etc. 
