On 06/09/2010 23:02, Curt Hagenlocher wrote:
In order for the virtual methods to be forwarded to Python, the C# class that's generated by NewTypeMaker has to "bake in" code for all the methods. You could probably write some Python-based checking code that examines a Python class C and makes sure that all of the interfaces it derives from and any abstract functions in its base class have Python implementations.
Thanks Curt. I suspected it was something like that. All the best, Michael
On Mon, Sep 6, 2010 at 10:27 AM, Michael Foord <fuzzy...@voidspace.org.uk <mailto:fuzzy...@voidspace.org.uk>> wrote:Hello all, A friend was asking some advice about implementing an IronPython extension system for a C# application. He wanted to use C# abstract classes so that he would get an error attempting to instantiate a plugin class if it didn't implement all the required methods. (The extensions subclass his abstract class.) He pulled the Python class out of an extension script as a PythonType and instantiated it with engine.Operations.Call(PythonClass) - however this doesn't throw the exception he expected. (He does get MissingMember exceptions trying to call methods that don't exist however.) Can this be made to work or is there a better way to do "interface checking" of Python classes subclassing .NET types? All the best, Michael Foord-- http://www.ironpythoninaction.com/http://www.voidspace.org.uk/blog READ CAREFULLY. By accepting and reading this email you agree, on behalf of your employer, to release me from all obligations and waivers arising from any and all NON-NEGOTIATED agreements, licenses, terms-of-service, shrinkwrap, clickwrap, browsewrap, confidentiality, non-disclosure, non-compete and acceptable use policies (”BOGUS AGREEMENTS”) that I have entered into with your employer, its partners, licensors, agents and assigns, in perpetuity, without prejudice to my ongoing rights and privileges. You further represent that you have the authority to release me from any BOGUS AGREEMENTS on behalf of your employer. _______________________________________________ Users mailing list Users@lists.ironpython.com <mailto:Users@lists.ironpython.com> http://lists.ironpython.com/listinfo.cgi/users-ironpython.com _______________________________________________ Users mailing list Users@lists.ironpython.com http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
-- http://www.ironpythoninaction.com/ http://www.voidspace.org.uk/blog READ CAREFULLY. By accepting and reading this email you agree, on behalf of your employer, to release me from all obligations and waivers arising from any and all NON-NEGOTIATED agreements, licenses, terms-of-service, shrinkwrap, clickwrap, browsewrap, confidentiality, non-disclosure, non-compete and acceptable use policies (”BOGUS AGREEMENTS”) that I have entered into with your employer, its partners, licensors, agents and assigns, in perpetuity, without prejudice to my ongoing rights and privileges. You further represent that you have the authority to release me from any BOGUS AGREEMENTS on behalf of your employer.
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