[IronPython] Getting attribute of new-style bound methods overriding built-in types
Sanghyeon Seo
sanxiyn at gmail.com
Thu Jul 12 05:21:42 CEST 2007
That was mouthful. This is for 1.1. (Running the following code on
2.0a2/Mono dies inside System.Reflection.Emit. Ugh.)
class C(object):
def __str__(self):
return 'C'
obj = C()
getattr(obj.__str__, 'attribute', None)
Result:
TypeError: Cannot cast from source type to destination type.
This is InvalidCastException.
IronPython/Runtime/calls/Function.cs has this comment on line 906:
public sealed partial class Method (snip) {
//??? can I type this to Function
private object func;
Apparently you can't... The error is thrown when you cast func to
PythonFunction, I think.
--
Seo Sanghyeon
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