Aha. I've answered my own question. One needs to set the output stream's
position to the beginning of the stream, i.e.:
public String handleInput(String inputLine)
{
// execute
python.ExecuteToConsole(inputLine + Environment.NewLine);
pythonOutputStream.Position = 0;
String returnValue = pythonReader.ReadToEnd();
return returnValue;
}
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jon Cooper
Sent: 23 January 2008 19:24
To: Discussion of IronPython
Subject: Re: [IronPython] WinForms UserComponent binding a IronPythonConsole
Thanks. I apologize for this followup, as it's not really a question about
IronPython, but on the off chance someone else has dealt with this issue I post
it here.
I've PythonEngine.SetStandardOutput to an instance of a MemoryStream, and then
created a StreamReader off of that MemoryStream.
When I execute Python code with ExecuteToConsole, I get output in my
MemoryStream (I can see it by looking in the buffer in the debugger), but my
StreamReader doesn't believe it has data from the MemoryStream
(StreamReader.EndOfStream = true, Peek() returns nothing, etc). Is this some
kind of flushing issue?
Any help would be fantastic. I'm nearly there!
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dino Viehland
Sent: 23 January 2008 17:29
To: Discussion of IronPython
Subject: Re: [IronPython] WinForms UserComponent binding a IronPythonConsole
Generally speaking you want to do 2 things:
1. Wire up std out / std err to a stream you can send to your window.
You can do this via
PythonEngine.SetStandardOutput/PythonEngine.SetStandardInput. You could also
wire up std-in but that'll be less important (it's only going to matter if
someone calls something like raw_input).
2. When you get input from the user call
PythonEngine.ExecuteToConsole("input")
Between those two you should have your console up and running. The IConsole
interface is actually just used by the command line implementation and isn't
part of the hosting APIs. That's why you're not finding it anywhere on the
engine - the linked blog came before IronPython 1.0.
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jon Cooper
Sent: Wednesday, January 23, 2008 5:02 AM
To: users@lists.ironpython.com
Subject: [IronPython] WinForms UserComponent binding a IronPythonConsole
Hello,
I've been enjoying using IronPython.
I'm now going to embed it in my C# WinForms application to provide a way for
users to perform simple ad-hoc scripting. Unfortunately this has been less easy
than I thought it would be!
I've built a subclass of TextBox that I can use to display and input the text
coming to/from my user. Now I just need to connect it to a PythonEngine.
In the article at
http://blogs.msdn.com/jmstall/archive/2005/09/01/Howto_embed_ironpython.aspx,
one gets the impression that a PythonEngine has a MyConsole property where one
can connect an IConsole. Perfect! Unfortunately, that's not the case on my 1.1
build.
Digging through the source I find that this stuff exists on IronPythonConsole,
but that class appears to be designed for use statically.
Before I go to the trouble of ripping apart IronPythonConsole and likely
reinventing the wheel, is there something I'm missing here?
Thanks,
jon
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