[Pythonmac-SIG] silly variable evaluation question

[Dante]

>  > I'm beating my head into the monitor trying to do the following:
>  >
>  > import Res
>  > foo = dir(Res)[0]
>  > print Res.foo.__doc__
>  >
>  > this throws an obvious error as foo isn't defined in Res. So how do I
>  > evaluate foo in context.<snip>
>
>I think you are trying to do something like the following:
>
>import Res
>for i in dir(Res):
>     try:
>         print i; print '\t',
>         exec( "print Res.%s.__doc__" % i )
>     except AttributeError:
>         # prevent things like strings from raising exceptions
>         print "no docstring"

That seems pretty extravagant, is that really the only way to do 
this? Where is the % behavior being exhibited in this documented? The 
python documentation appears to be lengthy but organized extremely 
poorly.

Dante