This is a good example, but I think that using Execute to load the
assembly by name is a dangerous approach. I'd strongly suggest loading
your assemblies using the following API - this is likely to be a
standard idiom for making the program's classes available to a script:
engine.LoadAssembly(typeof(Program).Assembly);
In fact, I'd go so far as to suggest the value of adding a variable to
the namespace before running the user's script, something like this:
engine.SetVariable("program", typeof(Program));
My two cents - Jim
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Corey Haines
Sent: Thursday, July 21, 2005 3:11 PM
To: Discussion of IronPython
Subject: Re: [IronPython] How to call IronPython Interpreter with C#
code?
Wow! Thanks, Martin. That actually helps me out quite a bit, as well.
I took a look at the console code to see how it does it, but this puts
it into a much more concise form.
I'd like to use ironpython as the scripting language for my system,
and this will make it much easier.
-Corey
On 7/21/05, Martin Maly <[EMAIL PROTECTED]> wrote:
> You can call IronPython through the IronPython.Hosting.PythonEngine
> object.
> Here's a trivial example:
>
> using IronPython.Hosting;
> class Program {
> static void Main(string[] args) {
> PythonEngine engine = new PythonEngine();
> Console.WriteLine( engine.Evaluate("2 + 2") );
> }
> }
>
> To get this to compile, add reference to IronPython.dll
>
> The other interesting methods on PythonEngine are:
>
> public void AddToPath(string dirName); ... adds path to
> sys.path
> public void Execute(string text);
> public object Evaluate(string expr);
> public void ExecuteFile(string fileName);
> public int RunFileInNewModule(string fileName);
>
>
> Here is another example, little more interesting, I think. The program
> (running as Embed.exe) will
> execute the Python statement, which in turn will load the Embed's type
> information and modify the static field.
>
> using System;
> using IronPython.Hosting;
>
> namespace Embed {
> public class Program {
> public static int Value = 0;
>
> static void Main(string[] args) {
> PythonEngine engine = new PythonEngine();
>
> engine.Execute(
> "import sys \n" +
> "sys.LoadAssemblyByName(\"Embed\") \n"+
> "import Embed \n" +
> "Embed.Program.Value = 20 \n");
>
> Console.WriteLine(Value);
> }
> }
> }
>
> And the last example that goes even further and uses SetVariable
method:
>
> using System;
> using IronPython.Hosting;
> using System.Windows.Forms;
>
> namespace Embed {
> public class Program {
> static void Main(string[] args) {
> PythonEngine engine = new PythonEngine();
>
> Form form = new Form();
> engine.SetVariable("form", form);
>
> engine.Execute(
> "import sys \n"
> +
> "sys.LoadAssemblyByName('System.Windows.Forms') \n"
> +
> "from System.Windows.Forms import Button \n"
> +
> "def on_exit(*args): \n"
> +
> " Application.Exit() \n"
> +
> "b = Button(Text='Exit') \n"
> +
> "b.Click += on_exit \n"
> +
> "form.Controls.Add(b) \n"
> +
> "form.Show()
> \n");
>
> Application.Run();
> }
> }
> }
>
> I hope this helps.
>
> Martin
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf
Of
> shhgs
> Sent: Wednesday, July 20, 2005 4:18 PM
> To: users-ironpython.com@lists.ironpython.com
> Subject: [IronPython] How to call IronPython Interpreter with C# code?
>
> Can somebody tell me how to call IronPython Interpreter with C# code,
so
> that I can embed Python into the .NET application.
>
> Thank you!
> _______________________________________________
> users-ironpython.com mailing list
> users-ironpython.com@lists.ironpython.com
> http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
>
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