[IronPython] Accessing assembly names from Silverlight

Michael Foord fuzzyman at voidspace.org.uk
Mon Apr 26 22:41:47 CEST 2010

On 26/04/2010 21:40, Dino Viehland wrote:
> Michael wrote:
>> Hello all,
>> The following code dies in Silverlight:
>> import clr
>> clr.AddReference("System.Xml")
>> "System.Xml" in [assembly.GetName().Name for assembly in clr.References]
>> SystemError: Security transparent method
>> System.Reflection.Assebly.GetName() cannot access
>> Microsoft.Scripting.Actions... using reflection.
>> This is making it less useful to port the IronPython dotnet integration
>> tutorial to Try Python. :-)
>> Repeated calls throw a slightly different error in the end (still a
>> system error - but a different message).
> This is actually just a limitation inside of Silverlight.  For some reason
> Assembly.GetName() is a security critical method and cannot be called.  It
> also fails in a simple C# Hello world app with:
> Attempt by security transparent method 'SilverlightApplication1.MainPage..ctor()' to access security critical method 'System.Reflection.Assembly.GetName()' failed.
> I have no clue why this limitation exists (maybe some information disclosure
> issue?)  but I think you could do:
> AssemblyName(assembly.FullName).Name

Ok - thanks. I'll switch the example to do that instead. I created an 
issue for this, so you could add this as a comment and close it.

All the best,


> instead.
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