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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>“</span>List<IronPython.NewTypes.System.Object_1$2> isn't
even type-safe for Python classes because IronPython maintains a cache of
generated types and will reuse a type it has previously generated for any new
class you define that's compatible with a previously-defined class.”<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>This has always been a lingering thought in the back of my
head – I’ve been wondering how long it’d be until it came up.<o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
users-bounces@lists.ironpython.com [mailto:users-bounces@lists.ironpython.com] <b>On
Behalf Of </b>Curt Hagenlocher<br>
<b>Sent:</b> Friday, May 02, 2008 10:17 PM<br>
<b>To:</b> Discussion of IronPython<br>
<b>Subject:</b> Re: [IronPython] List<Python Class><o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Well in the example I gave, the type of class foo would genrally
be something like IronPython.NewTypes.System.Object_1$2. There's
not going to be any "native" CLR code to which you can pass a
List<IronPython.NewTypes.System.Object_1$2>, and if you're passing the
data to other Python code, you may as well do it as a Python list or
tuple. It's the "dynamic" thing to do :).<o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal>List<IronPython.NewTypes.System.Object_1$2> isn't even
type-safe for Python classes because IronPython maintains a cache of generated
types and will reuse a type it has previously generated for any new class you
define that's compatible with a previously-defined class.<o:p></o:p></p>
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<p class=MsoNormal><br>
<o:p></o:p></p>
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<p class=MsoNormal>On Fri, May 2, 2008 at 9:58 PM, Matthew Barnard <<a
href="mailto:m.stephen.barnard@gmail.com">m.stephen.barnard@gmail.com</a>>
wrote:<o:p></o:p></p>
<p class=MsoNormal>Thanks Curt, in C# I use generics (list & dict)
containing class instances quite often. Is there a caveat to the dynamic typing
that I'm missing? <o:p></o:p></p>
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<br>
<o:p></o:p></p>
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<p class=MsoNormal>On Fri, May 2, 2008 at 7:52 PM, Curt Hagenlocher <<a
href="mailto:curt@hagenlocher.org" target="_blank">curt@hagenlocher.org</a>>
wrote:<o:p></o:p></p>
<div>
<p class=MsoNormal>This will get you a CLR type directly from your class
object:<o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal><span style='font-family:"Courier New"'>class foo(object):</span><o:p></o:p></p>
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<p class=MsoNormal><span style='font-family:"Courier New"'>
pass</span><o:p></o:p></p>
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<p class=MsoNormal><span style='font-family:"Courier New"'>theType =
clr.GetClrType(foo)</span><o:p></o:p></p>
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<p class=MsoNormal> <o:p></o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'>What use do you have for
creating a generic with the resulting (dynamically-generated) type?<o:p></o:p></p>
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<p class=MsoNormal>On Fri, May 2, 2008 at 6:30 PM, Matthew Barnard <<a
href="mailto:m.stephen.barnard@gmail.com" target="_blank">m.stephen.barnard@gmail.com</a>>
wrote:<o:p></o:p></p>
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margin-left:4.8pt;margin-right:0in'>
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<p class=MsoNormal style='margin-bottom:12.0pt'>Is the following the only way
to create a generic containing a python class?<br>
<br>
<br>
from System.Collections.Generic import List<br>
from System import Type<br>
<br>
class Foo:<br>
>>class stuff<<<br>
<br>
l = List[Type.GetType(Foo())]()<br>
<br>
<br>
I assume this is the nature of dynamic typing, but is there a way to get the
type from the classobj, and not an instance?<o:p></o:p></p>
</div>
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<o:p></o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><span style='color:#888888'>-- <br>
___________________________<br>
Matthew Barnard<br>
602 540 0652 </span><br>
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