[IronPython] [Newbie] Problem with Getting Started code

Michael M Mason michael at shamirlens.co.uk
Mon Mar 1 15:27:31 CET 2010

I've been trying the Getting Started example code (from
http://ironpython.net/browser/gettingstarted.html) but I get
an error message. The message is:-

  TypeError: unsupported operand type(s) for +: 'NoneType' and

and the code that causes it is this (marked line appears to be
the cause of the error):-

    <input id="button" type="button" value="Junk 2 - Say Hello!" />
    <script type="text/python">
    def button_onclick(s, e):
        window.Alert("Hello from Python!")
--> document.button.onclick += button_onclick

Can anyone explain what the correct code would be?


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