Hi guys,

Another issue from our upgrade to IPy2:
class thing(list):
    def __init__(self, value):
        self.value = value

    def __mul__(self, other):
        return self.value * other
t1 = thing(3.0)
print t1 * 3.0

results in:

Traceback (most recent call last):
  File "testmat.py", line 12, in testmat.py
  File "Microsoft.Scripting.Core", line unknown, in New
  File "Microsoft.Scripting.Core", line unknown, in New
  File "Microsoft.Scripting.Core", line unknown, in ValidateArgumentTypes
ValueError: Expression of type 'System.Double' cannot be used for
constructor parameter of type 'System.Object'


This has the potential to cause us significant pain since a third-party
(pure python) library that we use relies on this behaving correctly.

We'll raise this as a bug on codeplex.

Thanks
Glenn & Tom
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