[Cython] -dagss merge? + what next

[Stefan Behnel]

Hi,

Robert Bradshaw wrote:
> On Jul 29, 2008, at 12:56 PM, Dag Sverre Seljebotn wrote:
>>>> - shape(buf)
>>>> - buffer(buf), strides(buf), suboffsets(buf)
>>>> - ndim(buf)
> 
> OK, for some reason I was missing the fact that you were cimporting  
> them (I thought you were suggesting they be builtins like len). I  
> think it should somehow be clear that these operate on buffers,  
> either by placing them in cython.buffer or calling them buffer_shape,  
> etc. (I prefer the former).

+1, this looks perfectly fine to me:

  from cython.buffer cimport shape

or

  from cython cimport buffer
  buffer.shape(...)

Although

  from cython cimport buffer
  buffer.buffer(...)

looks a little funny. Maybe "buffer.plainbuffer()" is clearer - "buffer" isn't
the struct field name anyway.


>> - cython.unchecked_getitem(buf, i, j) and cython.unchecked_cast(...)
>> - with cython.noboundschecking: ...
>> - @cython.noboundschecking
>>    def f(): ...
>>
>> etc. Also it could be a primary vehicle (in a future far off) of  
>> making
>> Cython more namespace-compatible with Python:
>>
>> with cython.nogil:
> 
> Yeah, I like this general direction, though your first example is a  
> bit verbose.

It's pretty explicit, though. I don't think it would help readability if you
made it shorter. And if users really think they are smart enough, there's always

   from cython cimport unchecked_getitem as ugi

:)

Stefan