Simple Bare-Bones Data-as-Attributes Classes

d.py

# "heavy" approach (can be useful if you want to derive 
# and add simple behavior, e.g. validation etc.)
class Attributes:
    def __init__(self, **kwargs):
        # Alternatively:
        # self.__dict__.update(kwargs)
        for k, v in kwargs.items():
            setattr(self, k, v)

# or otherwise:
d = lambda: None
d.foo = "bar"
d.moo = "baaaaaaaaa"