[IronPython] How to call a specific base class constructor?

Dino Viehland dinov at exchange.microsoft.com
Fri Sep 22 22:02:14 CEST 2006

The constructor is actually __new__, __init__ is merely an initializer which runs after constructor - which has no real analog in the .NET world.  Therefore you'll want to override __new__ and pass in the values to the base __new__ that you want to use to construct the object with.

From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Ruxo Zheng
Sent: Wednesday, September 20, 2006 12:39 PM
To: users at lists.ironpython.com
Subject: [IronPython] How to call a specific base class constructor?

I'm customizing .NET ArrayList class like this:

from System.Collections import ArrayList

class MyArrayList(ArrayList):
    def __init__(self):
       ArrayList.__init__(self, 256)

test = MyArrayList()
test.Capacity  // return 0

It seems like default constructor is always called.   Did I incorrectly call the base class' constructor?

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