Since modules aren't loaded from the file system the same way on SL, I think it shouldn't cause too much of an issue. You can rebuild IP with the change and see if it causes any other issues.
On Thu, Apr 19, 2012 at 3:34 PM, Keith Rome <r...@wintellect.com> wrote: > We were able to confirm that this problem affects our product as well. > It shows up in both Silverlight 4 and 5 builds. I didn’t see an issue > ticket created on CodePlex yet, so I created one.**** > > ** ** > > Is the best “fix” going to be to catch MethodAccessException and return an > empty string from GetPrefix()? I am not familiar with the importance of > that call.**** > > ** ** > > ** ** > > *Keith Rome* > > *Senior Consultant and Architect* > > MCPD-EAD, MCSD, MCDBA, MCTS-WPF, MCTS-TFS, MCTS-WSS**** > > Wintellect | 770.617.4016 | kr...@wintellect.com <r...@wintellect.com>**** > > www.wintellect.com**** > > ** ** > > *From:* Mattias Ahlenius [mailto:matt...@goodsolutions.se] > *Sent:* Thursday, April 19, 2012 2:16 PM > *To:* Slide > *Cc:* Keith Rome; ironpython-users@python.org > *Subject:* Re: [Ironpython-users] Problem with embedding IronPython into > Silverlight Application**** > > ** ** > > I've put together a small testproject, when I build it with target SL4 I > get the same error as with the IronPython bins, but it works fine when I > compile it to target SL5, I've attached a testproject as a .zip (just > rename it from sip)**** > > ** ** > > /Mattias**** > > 2012/4/19 Mattias Ahlenius <matt...@goodsolutions.se>**** > > I think the binaries under: lib\Sl5 is compiled with SL4 as target and not > with SL5, not sure but that may be the issue.**** > > ** ** > > /Mattias**** > > ** ** > > **** > > ** ** > > 2012/4/19 Slide <slide.o....@gmail.com>**** > > 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 < > matt...@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 <matt...@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....@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 < > matt...@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....@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 > <matt...@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 <r...@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 | kr...@wintellect.com > >> > >> www.wintellect.com > >> > >> > >> > >> From: ironpython-users-bounces+rome=wintellect....@python.org > >> [mailto:ironpython-users-bounces+rome=wintellect....@python.org] On > Behalf > >> Of Mattias Ahlenius > >> Sent: Wednesday, April 18, 2012 2:41 PM > >> To: ironpython-users@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@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**** > > > > **** > > ** ** > > -- **** > > 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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