[Numpy-discussion] [python] Re: Request for advice: project to get NumPy working in IronPython
Fri Oct 26 15:50:23 CDT 2007
Travis E. Oliphant wrote:
>>> An IronPython compatible version of NumPy would be great. Of course
>>> it could be done by using C# to write NumPy, but I'm not sure that this
>>> would really be any less work than creating a "glue" layer that allowed
>>> most (or all) C-Python extensions to work with IronPython.
> I'm curious about why all the discussion is about putting Python and its
> extensions on top of C# and very little discussion about just using
> C#-based tools as an extension from CPython.
> Python .NET is a great example of what I'm referring to.
> The C# language and the CLR does solve some problems, but it does not
> solve all the problems related to scientific computing that it could.
> In particular, I wish it's cross-platform visibility where higher. Mono
> is a great start, but there are a lot of C# libraries that just don't
> get made to work on Linux or Mac OS X.
> The task of moving scipy to sit on top of the CLR seems rather large
> without some automatic tool to allow calling CPython extensions from the
> CLR that works in a cross-platform way.
This is exactly what Resolver hopes to achieve in the long-run.
I already have a proof-of-concept hack that already allows you to use
CPython extensions from IronPython, using the Python.NET work:
I had matplotlib (using numpy and Tkinter) working - but it is only a
proof of concept. :-)
In the long run we would like to provide a mechanism that allows CPython
extensions to be used seamlessly from IronPython. We're starting with
Numpy (and not by reimplementing in C#) because we have customers who
want to use it.
On the CLR subject, the CLR is a great runtime. Advantages include a
powerful JIT, no GIL, an accepted (and widely used) technology in the
corporate world, and a native GUI library for Windows (better than any
I've seen for CPython).
> I don't really see the benefit that the CLR offers (unless all the hype
> is just so you can write code that runs in a browser --- in which case,
> are you really going to run matrix inversion on the CLR in a browser?)
> How does legacy code interact with the "magic" of the CLR?
> What are people's opinions about the value of NumPy and SciPy on the CLR?
> -Travis O.
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