Re: [Python.NET] Passing in null as the value for a nullable type.

5 Feb 2014

      Thanks.   At least on my system there is no such thing as System.Null

In c# at least, null is just a keyword in the language.

From: PythonDotNet [mailto:pythondotnet-bounces+jgill=tokiomillennium.com@python.org] On Behalf Of Tribble, Brett
Sent: Wednesday, February 05, 2014 1:45 PM
To: A list for users and developers of Python for .NET
Subject: Re: [Python.NET] Passing in null as the value for a nullable type.

I believe you want to import System and pass System.Null. I can't remember if I've done this, but I think so.

From: PythonDotNet [mailto:pythondotnet-bounces+btribble=ea.com@python.org] On Behalf Of John Gill
Sent: Wednesday, February 05, 2014 8:47 AM
To: pythondotnet@python.org
Subject: [Python.NET] Passing in null as the value for a nullable type.

I am sure there is a really simple answer to this one... but so far it is eluding me.

I have a class something like this:

public class Foo
{
  ...
    public int process_date(DateTime? mydate)
   {
      ...
   }
}

I want to call this from python using pythondotnet.

Calling it like this works fine:

     mydate = DateTime(0)
     Foo().process_date(mydate)

But if I try to pass in a null as the date as follows:

    Foo().process_date(None)

I get:

   TypeError: No method matches given arguments

Hoping there is something really obvious I am missing here.

John
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