looping over a class attribute

[biner]

Hello,
  I would like to be able to make a loop over a given class
attributes. For example, with the following class definition :

>>> class x:
...     val1=1
...     val2=2
... 
>>> print x.val1
1
>>> print x.val2
2

I would like to be able to make a loop like this 
>>> dir(x)
['__doc__', '__module__', 'val1', 'val2']
>>> for i in dir(x) : print x.i

and get an output like typing

print x.__doc__
print x__module__
print x.var1
print x.var2

instead of 

Traceback (most recent call last):
  File "<stdin>", line 2, in ?
AttributeError: class x has no attribute 'i'

Is there a way to do this? Thanks in advance from a clueless newbie to
the wonderful world of Python and OO programming.

Sebastien.
biner.sebastien at ouranos.ca