[Ironpython-users] Problem with embedding IronPython into Silverlight Application
Slide
slide.o.mix at gmail.com
Thu Apr 19 16:45:31 CEST 2012
No, that is correct, SL5 does include the FEATURE_ASSEMBLY_LOCATION
property in the build, so you should be getting that code when you
disassemble. Can you check if there is anything in the InnerException when
you catch it?
On Thu, Apr 19, 2012 at 7:28 AM, Mattias Ahlenius
<mattias at goodsolutions.se>wrote:
> Do I do something fundamentally wrong here... The below is what I get do a
> disasm on the SL5 assembly in the latest distribution (2.7.2.1)
>
> Greatful for any help I could get in the right direction.
>
> Best regards,
>
> Mattias
>
>
> 2012/4/18 Mattias Ahlenius <mattias at goodsolutions.se>
>
>>
>> I get the following when I make a disam in Reflector, the exception
>> (System.MethodAccessException) that I'm getting is not subclassing neither
>> SecurityException or ArgumentException which is catched and handled.
>>
>>
>> *private static string <http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://mscorlib:5.0.5.0:7cec85d7bea7798e/System.String> GetPrefix <http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://IronPython:2.7.1300.40:7f709c5b713576e1/IronPython.Modules.SysModule/GetPrefix():String>()
>> {
>> try
>> {
>> return Path <http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://mscorlib:5.0.5.0:7cec85d7bea7798e/System.IO.Path>.GetDirectoryName <http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://mscorlib:5.0.5.0:7cec85d7bea7798e/System.IO.Path/GetDirectoryName(String):String>(Assembly <http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://mscorlib:5.0.5.0:7cec85d7bea7798e/System.Reflection.Assembly>.GetExecutingAssembly <http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://mscorlib:5.0.5.0:7cec85d7bea7798e/System.Reflection.Assembly/GetExecutingAssembly():System.Reflection.Assembly>().Location <http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://mscorlib:4.0.0.0:b77a5c561934e089/System.Reflection.Assembly/property:Location:String>);
>> }
>> catch (SecurityException <http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://mscorlib:5.0.5.0:7cec85d7bea7798e/System.Security.SecurityException>)
>> {
>> return string <http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://mscorlib:5.0.5.0:7cec85d7bea7798e/System.String>.Empty <http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://mscorlib:5.0.5.0:7cec85d7bea7798e/System.String/Empty>;
>> }
>> catch (ArgumentException <http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://mscorlib:5.0.5.0:7cec85d7bea7798e/System.ArgumentException>)
>> {
>> return string <http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://mscorlib:5.0.5.0:7cec85d7bea7798e/System.String>.Empty <http://www.aisto.com/roeder/dotnet/Default.aspx?Target=code://mscorlib:5.0.5.0:7cec85d7bea7798e/System.String/Empty>;
>> }
>> }*
>>
>> **/Mattias
>> *
>> *
>>
>> 2012/4/18 Slide <slide.o.mix at gmail.com>
>>
>>> This really sounds like the assemblies you are referencing are not
>>> really the SL assemblies, can you open the assembly in ILSpy and decompile
>>> GetPrefix and see what you have?
>>>
>>> slide
>>>
>>>
>>> On Wed, Apr 18, 2012 at 1:44 PM, Mattias Ahlenius <
>>> mattias at goodsolutions.se> wrote:
>>>
>>>> Same exception even if I use the 2.7.2.1 bins: (I support you mean
>>>> 2.7.. and not 2.5..)
>>>>
>>>> Message: Failed to load language 'IronPython 2.7.2.1': The type
>>>> initializer for 'IronPython.Modules.SysModule' threw an exception.
>>>>
>>>> InnerException:
>>>>
>>>> "Attempt by security transparent method
>>>> 'IronPython.Modules.SysModule.GetPrefix()' to access security critical
>>>> method 'System.Reflection.Assembly.get_Location()' failed."
>>>>
>>>> /Mattias
>>>>
>>>> 2012/4/18 Slide <slide.o.mix at gmail.com>
>>>>
>>>>> Please make sure you have 2.5.2.1 and not just 2.5.2.
>>>>>
>>>>> On Wed, Apr 18, 2012 at 12:16 PM, Mattias Ahlenius
>>>>> <mattias at goodsolutions.se> wrote:
>>>>> > Thanks for your quick reply Keith,
>>>>> >
>>>>> > Tried you code and I still get the same Exception:
>>>>> >
>>>>> > "Attempt by security transparent method
>>>>> > 'IronPython.Modules.SysModule.GetPrefix()' to access security
>>>>> critical
>>>>> > method 'System.Reflection.Assembly.get_Location()' failed."
>>>>> >
>>>>> > /Mattias
>>>>> >
>>>>> >
>>>>> >
>>>>> > 2012/4/18 Keith Rome <rome at wintellect.com>
>>>>> >>
>>>>> >> Does this not work for you?
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> using IronPython.Hosting;
>>>>> >>
>>>>> >> // ...
>>>>> >>
>>>>> >> _python = Python.CreateEngine();
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> I believe that should handle the simple/typical scenarios, unless
>>>>> you need
>>>>> >> to alter the environment (such as plugging in a custom Host/PAL).
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> If you need to customize the environment, then this should work:
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> var options = new Dictionary<string, object>();
>>>>> >>
>>>>> >> ScriptRuntimeSetup setup = Python.CreateRuntimeSetup(options);
>>>>> >>
>>>>> >> _runtime = new ScriptRuntime(setup);
>>>>> >>
>>>>> >> _python = Python.GetEngine(_runtime);
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> This code should work exactly the same on desktop CLR and
>>>>> Silverlight.
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> Keith Rome
>>>>> >>
>>>>> >> Senior Consultant and Architect
>>>>> >>
>>>>> >> MCPD-EAD, MCSD, MCDBA, MCTS-WPF, MCTS-TFS, MCTS-WSS
>>>>> >>
>>>>> >> Wintellect | 770.617.4016 | krome at wintellect.com
>>>>> >>
>>>>> >> www.wintellect.com
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> From: ironpython-users-bounces+rome=wintellect.com at python.org
>>>>> >> [mailto:ironpython-users-bounces+rome=wintellect.com at python.org]
>>>>> On Behalf
>>>>> >> Of Mattias Ahlenius
>>>>> >> Sent: Wednesday, April 18, 2012 2:41 PM
>>>>> >> To: ironpython-users at python.org
>>>>> >> Subject: [Ironpython-users] Problem with embedding IronPython into
>>>>> >> Silverlight Application
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> Hi,
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> I'm new to scripting and would like to add support for IronPython
>>>>> to our
>>>>> >> Silverlight application, I have tried to find an answer on the net
>>>>> but could
>>>>> >> not find anyone else facing the same problem. The app is an out of
>>>>> browser
>>>>> >> application.
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> I've added the latest release (2.7.2) from nuget, checked that the
>>>>> >> binaries being used is from the SL5
>>>>> libs-catalog: IronPython.2.7.2\lib\Sl5
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> The code I use to create the scripting engine is the following:
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> ..
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> _runtime = new ScriptRuntime(DynamicEngine.CreateRuntimeSetup(true));
>>>>> >>
>>>>> >> _python = _runtime.GetEngine("py");
>>>>> >>
>>>>> >> ..
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> When GetEngine is executed I'll the following secutiry exception:
>>>>> >>
>>>>> >> "{System.MethodAccessException: Attempt by security transparent
>>>>> method
>>>>> >> 'IronPython.Modules.SysModule.GetPrefix()' to access security
>>>>> critical
>>>>> >> method 'System.Reflection.Assembly.get_Location()' failed.
>>>>> >>
>>>>> >> at IronPython.Modules.SysModule.GetPrefix()
>>>>> >>
>>>>> >> at IronPython.Modules.SysModule..cctor()}"
>>>>> >>
>>>>> >> When checking the code at GitHub for the method: GetPrefix()
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> There are code checking a compiler-constant that seems to be if you
>>>>> >> running in "silverlight" (don't have diskaccess to the libs), but
>>>>> the code
>>>>> >> seems to be executed anyway, which makes me wonder if I still
>>>>> doesn't use
>>>>> >> the correct libs for Silverlight.
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> Would really appreciate if someone could point me in the right
>>>>> direction.
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> Have a nice day!
>>>>> >>
>>>>> >> --
>>>>> >>
>>>>> >> Best regards,
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> Mattias Ahlenius
>>>>> >>
>>>>> >> 031 - 788 19 25
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> Good Solutions AB
>>>>> >>
>>>>> >> http://www.goodsolutions.se
>>>>> >>
>>>>> >>
>>>>> >
>>>>> >
>>>>> >
>>>>> >
>>>>> > --
>>>>> >
>>>>> > Med vänlig hälsning,
>>>>> >
>>>>> > Mattias Ahlenius
>>>>> > 031 - 788 19 25
>>>>> >
>>>>> > Good Solutions AB
>>>>> > http://www.goodsolutions.se
>>>>> >
>>>>> >
>>>>> > _______________________________________________
>>>>> > Ironpython-users mailing list
>>>>> > Ironpython-users at python.org
>>>>> > http://mail.python.org/mailman/listinfo/ironpython-users
>>>>> >
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Website: http://earl-of-code.com
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> Med vänlig hälsning,
>>>>
>>>> Mattias Ahlenius
>>>> 031 - 788 19 25
>>>>
>>>> Good Solutions AB
>>>> http://www.goodsolutions.se
>>>>
>>>>
>>>
>>>
>>> --
>>> Website: http://earl-of-code.com
>>>
>>
>>
>>
>> --
>>
>> Med vänlig hälsning,
>>
>> Mattias Ahlenius
>> 031 - 788 19 25
>>
>> Good Solutions AB
>> http://www.goodsolutions.se
>>
>>
>
>
> --
>
> Med vänlig hälsning,
>
> Mattias Ahlenius
> 031 - 788 19 25
>
> Good Solutions AB
> http://www.goodsolutions.se
>
>
--
Website: http://earl-of-code.com
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