On Mon, Mar 22, 2010 at 3:50 PM, Dag Sverre Seljebotn
<[email protected]> wrote:
> Haoyu Bai wrote:
>> Hi,
>>
>> I'm Haoyu Bai, a graduate student from National University of
>> Singapore. I'm quite interested in help Cython for improving Python
>> compatibility as a GSoC project. I have some experience of working
>> with Boost.Python and SWIG, and have use Python for several years, so
>> I'm familiar with Python internals and C-API. Also, I have used Cython
>> several times and pretty love its user-friendliness. Thanks your great
>> works! :)
>>
>> I have read the relevant CEPs, and from the posts on the mailing list
>> I see that the work on closure is almost finished, and the next thing
>> would be generator(coroutines). So could generator support be a good
>> GSoC project? I'd like to work on that because coroutines is a
>> powerful thing in Python and support of that in Cython would be
>> amazing.
>>
>> Another thing mentioned on the idea page is proper scoping. With the
>> approach described in the CEP page, this seems easier to do. However,
>>
>> I'm aware that the described approach is incomplete. I'll do some more
>> investigation about this. Anyway, I'm more interested in generator
>> support.
>>
>> I want to have a better understanding of Cython and have more concrete
>> idea of how these could be implemented. So where could be a good start
>> point?
>>
> I have to say this sounds very promising. The next step is to get in
> touch with possible mentors on this mailing list, in order to work
> towards an application (we usually match up possible mentors and
> students up-front to the selection process, because there's so few
> possible mentors). Basically you have to wait and see if anyone
> volunteers to be your primary mentor, should you be selected. I'm not
> sure how many is able to participate as GSoC mentors this year.
>
> Myself I think I might not be able to be a GSoC mentor at all this year
> because of finishing my MSc thesis.
>
> PS. The Python software foundation will give a strong priority to Python
> 3 related projects this year, that's something worth thinking about.
> E.g. one could target Cython's compatability with Python 3 specifically.
>
> Dag Sverre
Thanks for your advice, Dag. Your suggestion about Python 3 support
also lead to an interesting idea. That is, to make use of the Python 3
function annotation syntax to have a more convenient pure Python mode
in Cython.
For example, this:
cdef str foo(int x):
...
could be written as:
def foo(x:int) -> str:
...
or maybe more verbose:
def foo(x:cython.int) -> cython.str:
...
This could make the pure Python mode more easier and attractive.
There's also some minor improvement regarding Python 3 support could
be done in Cython. Such as support for "nonlocal" keyword, and float
division "1/2" (which evaluated as 0.5 in Python 3 but 0 in Cython).
These could be a project easier than generator support. But quite
useful and could attract more people to use Python 3.
Any comments?
Thanks!
--
Haoyu BAI
School of Computing,
National University of Singapore.
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