local variable 'a' referenced b

[Demian Brecht]

>
> One problem with short examples is they mask the reason for the code to
> be structured that way.
>
>
Couldn't agree more (I don't think I've ever written a nested function
outside a closure). I made the assumption that the OP wasn't asking about
closures based on his code samples. In hindsight, should have likely asked
for clarification first.
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