[IronPython] Python in the Browser updates

Michael Foord fuzzyman at voidspace.org.uk
Tue Jun 17 23:51:41 CEST 2008

Hello all,

Sorry for the noise - but tomorrow I hope to package this for a release 
and if any of you get the chance to give me any feedback before then.


I think I have fixed all the basic usability issues (it is no longer 
possible to screw up the console so that it refuses further input for 
example). To *really* fix input I ought to move execution into its own 
thread so that we can interrupt infinite loops [1] - but that is a 
bigger change so I am resisting it for the moment.

The big change is that I have added some simple code snippets - as an 
example of how it could be used in tutorials or for teaching Python.

It is also easy to customize - the source code (200 lines of Python, 70 
lines of Javascript, 25 lines of C#) shows how to prepopulate the 
execution context and show the first few lines of code in the interpreter.

You can get the sourcecode from the repository of course:


All the best,

Michael Foord

[1] and then decide whether on windows a ctrl-c should send a keyboard 
interrupt or copy to the clipboard...
Michael Foord wrote:
> For those who are interested, I've updated "Python in the Browser".
> Both the repository:
> http://code.google.com/p/pythoninthebrowser/
> And the online demo:
> http://www.voidspace.org.uk/ironpython/silverlight-console/console.html
> There are a few minor but nice improvements:
> * The Javascript now works with IE 7!
> * The textarea scrolls as input is printed
> * The context window is disabled to prevent you pasting over the input 
> area - not sure if this is really an improvement though...
> * The input area is cleared on load - to stop browsers like Firefox 
> and Safari repopulating the textarea for us on browser refresh
> * Recursion limit is set
> I think it is basically in a useful state now... I might push out a 
> '0.1' release from the current SVN head.
> All the best,
> Michael Foord


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