[Python-Dev] Transformation with ``parser`` ast
brett at python.org
Mon Oct 13 21:33:40 CEST 2008
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On Mon, Oct 13, 2008 at 12:15 PM, Malthe Borch <mborch at gmail.com> wrote:
> The ``compiler.ast`` module makes parsing Python source-code and AST
> manipulation relatively painless and it's straight-forward to implement a
> transformer class.
> However, I find that the ``compiler.pycodegen`` module imposes a hard limit
> on the length of functions since it calculates jump points in a recursion.
> I'm using this module to compile an XML dynamic template into Python code
> (akin to "Mako") and functions may grow to a rather large size.
> Now it seems that the ``parser`` module, which parses source code into
> ``parser.st`` trees does not have the same limitations, however, I could not
> find a transformer class compatible with its tree structure.
> What's the recommended way of working with the AST tree from the ``parser``
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