How can I add attributes to methods and types defined in IronPython?

Question

Since IronPython doesn't support attributes I am wondering if there is another way to decorate IronPython classes with attributes, perhaps with reflection?

Srivatsn Narayanan · Accepted Answer · 2008-12-11 23:43:50Z

2

One, albeit ugly and sometimes impractical, workaround is to create a stub class in C# and decorate it with attributes and derive from that in IronPython.

answered Dec 11, 2008 at 23:43

Srivatsn Narayanan

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jcao219 · Accepted Answer · 2010-08-22 23:41:08Z

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I'm not sure if this is what you are looking for, but clrtype allows you to use attribute.

import clr
import clrtype
from System.Runtime.InteropServices import DllImportAttribute
import System

class PInvoke(object):

    __metaclass__ = clrtype.ClrClass
    DllImport = clrtype.attribute(DllImportAttribute)

    @staticmethod
    @DllImport("user32.dll")
    @clrtype.accepts(System.UInt32)
    @clrtype.returns(System.Boolean)
    def MessageBeep(beepType): raise RuntimeError("Something went wrong.")

PInvoke.MessageBeep(0)

I'm not sure if it works on classes though.

answered Aug 22, 2010 at 23:41

jcao219

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2 Comments

MarkusSchaber Over a year ago

In IryonPython 2.6.2 and 2.7 Beta 2, I don't find that clrtype module. Can you give me a hint where it is?

Dmitry Dronov Over a year ago

Can you help me please convert for example this: [DllImport("user32.dll")] static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, UIntPtr dwExtraInfo) To IronPython that i can understand how it work?

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