<div dir="ltr">It takes courage to admit failures like this! I think this is a good call. It echoes the experiences with Unladen Swallow and Pyston. Despite what people may think, CPython really isn't slow, given the large set of constraints on the implementation.<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 17, 2017 at 1:10 PM, Victor Stinner <span dir="ltr"><<a href="mailto:victor.stinner@gmail.com" target="_blank">victor.stinner@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I rejected my own PEP 510 "Specialize functions with guards" that I<br>
wrote in January 2016:<br>
<br>
<a href="https://github.com/python/peps/commit/c99fb8bf5b5c16c170e1603a1c66a74e93a4ae84" rel="noreferrer" target="_blank">https://github.com/python/<wbr>peps/commit/<wbr>c99fb8bf5b5c16c170e1603a1c66a7<wbr>4e93a4ae84</a><br>
<br>
"This PEP was rejected by its author since the design didn't show any<br>
significant speedup, but also because of the lack of time to implement<br>
the most advanced and complex optimizations."<br>
<br>
I stopped working on my FAT Python project almost one year ago:<br>
<a href="https://faster-cpython.readthedocs.io/fat_python.html" rel="noreferrer" target="_blank">https://faster-cpython.<wbr>readthedocs.io/fat_python.html</a><br>
<br>
Victor<br>
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</blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">--Guido van Rossum (<a href="http://python.org/~guido" target="_blank">python.org/~guido</a>)</div>
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