Creating variables from dicts

Bruno Desthuilliers bruno.42.desthuilliers at websiteburo.invalid
Wed Feb 24 12:48:13 CET 2010

Luis M. González a écrit :
> Alright, this is what the docs say about locals:
> "Note
> The built-in functions globals() and locals() return the current
> global and local dictionary, respectively, which may be useful to pass
> around for use as the second and third argument to exec().
> Note
> The default locals act as described for function locals() below:
> modifications to the default locals dictionary should not be
> attempted. Pass an explicit locals dictionary if you need to see
> effects of the code on locals after function exec() returns."
> I wonder why updating locals(), not from within a function, works (at
> least in my interactive session).

Because at the top level, locals and globals are the same thing.

> And what about the trick of updating globals? Is it legal?

It's legal, but it's (usually) a very bad idea - at the top-level, it 
harms readability, and from within a function it's doubly bad 
(readibility + "globals are evil").

Now as usual with GoldenRules(tm), it's meant to be broken - once you do 
know why you shouldn't _usually_ do it.

  for the very same reasons global

> If not, is
> there any "legal" way to do what the OP needs?
> Luis

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