Antoon Pardon wrote:
> I have the following little piece of code:
>
> class Cfg:pass
> #config = Cfg()
>
> def assign():
> setattr(config, 'Start' , [13, 26, 29, 34])
>
> def foo():
> config = Cfg()
> dct = {'config':config, 'assign':assign}
> exec "assign()" in dct
> print config.Start
>
> foo()
>
> When I execute this I get the following error:
>
> Traceback (most recent call last):
> File "mod1.py", line 13, in ?
> foo()
> File "mod1.py", line 10, in foo
> exec "assign()" in dct
> File "<string>", line 1, in ?
> File "mod1.py", line 5, in assign
> setattr(config, 'Start' , [13, 26, 29, 34])
> NameError: global name 'config' is not defined
>
> Now I don't understand this.
I thought you were an expert?
Python's lexically scoped, not dynamically scoped. Using a specific
global context for the statement "assign()" doesn't mean that code
called by that statement will suddenly get the same global context.
</F>
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