From glc at well.com  Tue Jul 13 22:33:53 2004
From: glc at well.com (Greg Chapman)
Date: Tue Jul 13 22:34:02 2004
Subject: [Python.NET] Enhancement request: extend __iter__ support to
	IEnumerator
Message-ID: <e4g8f0554unrvpoq4r3geomp6oopo2vaf2@4ax.com>

In the current Python.Net, if you do something which results in an IEnumerator
reference, you cannot use it where Python expects an iterator.  E.g.:

>>> from CLR.System.IO import Directory
>>> files = Directory.GetFiles(".")
>>> list(files.GetEnumerator())
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
TypeError: iteration over non-sequence

Obviously, in the above case it makes more sense to use files directly for
iteration, but a couple of times I've run into methods which return
IEnumerators, and it is annoying not to be able to iterate over them.  It looks
like it would be fairly simple to change ClassBase.tp_iter to check if co.inst
can be cast to IEnumerator, and if so, use that enumerator to initialize the
iterator, e.g. (I haven't tried to compile this):

	[CallConvCdecl()]
	public static IntPtr tp_iter(IntPtr ob) {
	    CLRObject co = GetManagedObject(ob) as CLRObject;

	    if (co == null) {
		Exceptions.SetError(Exceptions.TypeError, "invalid object");
		return IntPtr.Zero;
	    }

	    IEnumerator enumerator;
	    IEnumerable e = co.inst as IEnumerable;

	    if (e != null)
		enumerator = e.GetEnumerator();
	    else {
		enumerator = co.inst as IEnumerator;
		if (enumerator == null) {
		    Exceptions.SetError(Exceptions.TypeError,
					"iteration over non-sequence"
					); 
		    return IntPtr.Zero;
		}
	    }

	    Iterator iter = new Iterator(enumerator);
	    return iter.pyHandle;
	}

---
Greg Chapman


From bvb at iname.com  Wed Jul 14 19:46:04 2004
From: bvb at iname.com (Bernard Vander Beken)
Date: Wed Jul 14 19:46:06 2004
Subject: [Python.NET] OT: Boo, an interesting language for Python/.NET users
Message-ID: <40F5715C.2000802@iname.com>

Hello,

While not really being Python on .NET, the Boo language is interesting 
for .NET and python users:

"Boo is a new object oriented statically typed programming language for 
the Common Language Infrastructure with a python inspired syntax and a 
special focus on language and compiler extensibility."

More info: http://boo.codehaus.org/

Best regards,

Bernard

From pythonmailing at web.de  Fri Jul 30 15:03:51 2004
From: pythonmailing at web.de (Marek Kubica)
Date: Sat Jul 31 10:33:00 2004
Subject: [Python.NET] IronPython Alpha released
Message-ID: <20040730150351.00003227@galileo>

Hi!

Probably you all know IronPython (been vapourware a long time)... now
you can find on IronPythons homepage, http://www.ironpython.com, an
alpha version of it (means version 0.6).

I've only tested it under Windows, with both .NET Framework 1.1 and Mono
1.0 and it seems to work. Well, untill no it is not as mature as
CPython, but I've got Windows.Forms running without errors.

greets,
Marek