Is a "real" C-Python possible?

[Diez B. Roggisch]

John Nagle schrieb:
> sturlamolden wrote:
>> On 10 Des, 23:49, a... at pythoncraft.com (Aahz) wrote:
>>
>>> "Premature optimization is the root of all evil in programming."
>>> --C.A.R. Hoare (often misattributed to Knuth, who was himself quoting
>>> Hoare)
> 
>    We're ten years into Python, and it's still a naive interpreter.
> It's time for a serious optimizing compiler.  Shed Skin is going
> in the right direction.  But for some reason, people seem to dislike the
> Shed Skin effort. Its author writes "Am I the only one seeing the potential
> of an implicitly statically typed Python-like-language that runs at
> practically the same speed as C++?"
> 
>    "For a set of 27 non-trivial test programs (at about 7,000 lines in 
> total; ... measurements show a typical speedup of 2-40 times over Psyco, 
> about 10 on average, and 2-220 times over CPython, about 35 on 
> average."  So that's
> what's possible.

No, it's not. Shedskin is interesting, but just a small subset of Python 
- and without completeness, performance is useless.

The PyPy approach is much more interesting - first create a 
full-featured Python itself, then create optimizing backends for it, 
also for just a language subset - RPython.

And if possible - which it is only in a very limited set of cases for 
not type-annotated code - identify parts that conform to RPython's 
constraints, and compile that JITly.

Diez