Creating "virtual" module-namespace

[Carl Banks]

Simon wrote:
> Imagine... there is a:
> 
> a= "class nasenbaer:\n  def singt():\n    print "tralala"\n\n"
> 
> (the content of a is:
> class nasenbaer:
>        def singt():
>                print "tralala"
> 
> 
> )
> 
> now I want to exec a in a "special" way so that later I can call
> 
> exec a in ???????
> 
> grail=somthing.nasenbaer()
> grail.singt()
> 
> My try was 
> 
> b=globals()
> 
> exec a in b
> grail=b.nasenbaer()
> 
> but it failed...

It's because b is a dictionary.  b['nasenbaer']() would have worked,
I think, but I don't think it's what you wanted.


> what is the correct way?

I would do it this way.  I'm assuming "something" is an object (an
instance of some class) and you want to be able to call
something.nasenbaer().

    class whatever: pass
    something = whatever()

    exec a in globals(), something.__dict__
    grail = something.nasenbaer()



-- 
CARL BANKS