[pypy-dev] New __builtin__

[Scott Fenton]

On Mon, Jan 27, 2003 at 01:17:31AM +0100, holger krekel wrote:
> i tested your code with the Python-2.2.2 test_builtin.py
> (found in Python-2.2.2/Lib/test, has some dependencies). 
> 
> 1) your code does not import cleanly (some typos here
>    and there)
> 
> 2) the tests fail right at 'abs', the first builtin
>    because you don't throw a TypeError if the argument
>    is not a number.  
> 
> I take it that you didn't seriously intend your code 
> to be used as is.  

<sarcasm>Them thar's fightin' words, pardner</sarcasm>

> 
> Nevertheless, it would be nice to have a python 
> implementation of the builtin module that passes 
> its CPython's tests.  Also the docstrings should be
> copied from Python-2.3.  This can be done automatically 
> by writing a script and iterating over 
> vars(__import__('__builtin__')) and using the inspect 
> module.  I hopefully can do this soon and check it into
> the upcoming repository.  Or somebody else does it before
> me.  
> 

Don't worry. I'll take care of it. I just wanted to get
a rough sketch out first

> Note, that you cannot automize extraction 
> of signatures of the builtin callables in all cases.  
> C-implemented builtins don't have signature-introspection 
> methods but often have a conventional (and quite parseable)
> description in the first line of the docstring, e.g.
> 
>     >>> print abs.__doc__
>     abs(number) -> number
> 

Or you do what I do and copy and paste them.

> cheers,
> 
>     holger

more cheers,
-Scott

-- 
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r++)c-']'||(d>1||(r=*p?*s:(--s,r)),!d||d--),c-'['||d++||(*++s=r),d||(*p+=c==
'+',*p-=c=='-',p+=c=='>',p-=c=='<',c-'.'||write(1,p,1),c-','||read(2,p,1));}