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From: Mark Lawrence <breamoreboy@yahoo.co.uk>
Subject: Re: Possibly Pythonic Tail Call Optimization (TCO/TRE)
Date: Wed, 15 Jul 2015 00:40:14 +0100
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Xref: csiph.com comp.lang.python:93836

On 13/07/2015 23:46, Terry Reedy wrote:
>
> Optimizing specific tail calls is tricker.  For one thing, calls to a
> recursion-replacement function, such as recur, add a stack frame that
> must also be popped. A CPython bytecode manimpuation solution was given
> years ago as a recipe on the ActiveState Python Cookbook site.  MacroPy
> at pypi.python.org "provides a mechanism for user-defined functions
> (macros) to perform transformations on the abstract syntax tree(AST) of
> Python code at module import time".  Among many included examples, it
> has a tco decorator.
>

A direct link https://github.com/lihaoyi/macropy#tail-call-optimization 
for anybody who is interested.

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence