Using Dictionary look-up

[kacmaz at my-deja.com]

This is kind of a follow-up to an earlier question I posted. Thankyou
for all who answered it....

I have written a simple dictionary look up where necessary values are
received from a single-item dictionary (later on I will open this up to
a larger number of items..!) (I saw a similar one in Mr Guido's site I
think!).....

The dictionary would be {'UserXXXX':'123123'}

----Configuration.py (start)----
...
UserName=UserXXXX
UserNumb="123123"
...
----Configuration.py (ends)----

----Main.py (start)----
...
from configuration import *
class Authenticator:
    def __init__(self):
        self.authenticate=Dict_lookup(UserName=function(UserNumb))

    def lookup_key (self,*args):
        return apply(self.authenticate.lookup_key,args)

class Dict_lookup:
    def __init__(self,**kw):
        self.dict=kw

    def lookup_key (self,sn):
        return self.dict[sn]
...
----Main.py (ends)----

But python gives me error when I run it like this as :
           Exceptions.KeyError : UserName

but still if I change the above line with :
    def __init__(self):
        self.authenticate=Dict_lookup(UserXXXX=function(UserNumb))

then it works fine...!!!

The general structure of the dict_lookup suits what I want to do but
why can't I call up UserName in this fashion?

thanks

HK


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