[Python-Dev] Using defaultdict as globals/locals for eval()

[Neil Schemenauer]

Martin v. Loewis wrote:
> Geert Jansen <geertj@boskant.nl> writes:
> > Or altenately, is there a way I can find out which variables are
> > used inside a compiled code block so I can initialize non-specified
> > variables? I have a vague memory that the nested scopes feature has
> > to determine at compile time which variables are being used in a
> > code block.
> 
> Sure: you can parse the code, build an AST tuple (or list), and
> traverse that.

You might want to look at the ptl_compile module in Quixote for some
ideas.  The AST from the 'compiler' package is much nicer than the parse
tree from the 'parser' module.

  Neil