[IronPython] Overriding __iter__ in dict subclass

[Dino Viehland]

This one's interesting.  I've got a fix for this for 2.0 on my machine - I've been looking at some other tweaks to dictionaries so we can cleanup our type system (funny how those two are related) and this fits in nicely with that.  So it should be in the next release.  Thanks for the report!

-----Original Message-----
From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Michael Foord
Sent: Tuesday, February 19, 2008 8:31 AM
To: Discussion of IronPython
Subject: [IronPython] Overriding __iter__ in dict subclass

Bug in IronPython 1 and 2.

IronPython 2.0 Alpha (2.0.0.800) on .NET 2.0.50727.832
Copyright (c) Microsoft Corporation. All rights reserved.
 >>> class X(dict):
...  __iter__ = lambda s: s.itervalues()
...
 >>> a = X([(1, 'a'), (2, 'b'), (3, 'c')])
 >>> for e in a:
...  print e
...
1
2
3
 >>>



IronPython 1.1
 >>> class X(dict):
...   __iter__ = lambda s: s.itervalues()
...
 >>> a = X([(1, 'a'), (2, 'b'), (3, 'c')])
 >>> for e in a:
...  print e
...
1
2
3
 >>>

CPython 2.4

Python 2.4.4 (#71, Oct 18 2006, 08:34:43) [MSC v.1310 32 bit (Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
 >>> class X(dict):
...  __iter__ = lambda s: s.itervalues()
...
 >>> a = X([(1, 'a'), (2, 'b'), (3, 'c')])
 >>>
 >>> for e in a:
...  print e
...
a
b
c
 >>>

--
Michael Foord
Senior Software Engineer, Resolver Systems Ltd.
michael.foord at resolversystems.com
+44 (0) 20 7253 6372

We're hiring! http://www.resolversystems.com/jobs/
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