__getattr__ for globals?
aleax at aleax.it
Fri Apr 18 23:40:52 CEST 2003
Kevin Smith wrote:
> Is there a way to get the same type of effect of the __getattr__ method
> on class instances with global variables? I want to be able to look up
> the value of global variables from an external source if they don't
> exist in the current set of globals.
Module objects don't offer this functionality -- when you access a
global X in module Y (whether by syntax Y.X from elsewhere, or by
just X from code inside Y), you get a direct access to Y.__dict__['X'],
period. And you cannot rebind Y.__dict__ , either.
So why don't you use a class instance to hold your "globals"
"whatever you wish"
glob = Globals
and use glob.X, glob.Y and so on rather than the corresponding
barenames. This way you get to do whatever you wish AND your
code arguably gets more readable too...
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