[Pythonmac-SIG] silly variable evaluation question

[savageb]

> 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. In tcl I'd just throw some brackets around
> that puppy and problem solved but I appear to be missing something
> crucial here.
> 
> Dante

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"