[Pyrex] A couple of questions about pyrex

[Robert Bradshaw]

On May 12, 2009, at 4:53 AM, Yingjie Lan wrote:

> Hi there,
>
> Just came to know pyrex, read the docs at pyrex homepage, and  
> thought about using it for my project, but have a couple of  
> unresolved questions. Help would be very much appreciated.
>
> 1) Does pyrex support writing iterator classes for collection  
> objects? If it does, how?

Yes, simply create a class with a __next__ method.

> 2) I found it not very intuitive to have exportable function  
> definition use the 'def' syntax, which mimics the python  
> counterpart, while the extension classes (cdef class) use something  
> different than the counterpart in python (class). Is there a  
> particular reason for this? Why not just use 'class MyClass' syntax  
> for pyrex to define an extension?

You can think of "cdef" as meaning "c definition." The reason to have  
both is because one can have normal (non-cdef) classes as well as  
extension types in the same file.

- Robert