Professional IronPython

Creating the Simple C# Extension
 
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If you’re looking at the class in the IronPython console, you might want to give it a quick try before 
you close up the console and move on to the next part of the example. Try this code and you’ll see 
an output of 15 from the 
__add__()
method.
Value1 = Calcs.Calcs(10)
Value2 = Calcs.Calcs(5)
print Value1.__add__(Value2)
fIgURE 16-3: 
The dir() function shows the content of the Calcs class.
Adding the IronPython Project
At this point, you have a C# extension (or module) to use with IronPython. Of course, you’ll want 
to test it. The easiest way to do this is to add the IronPython project directly to the current solution. 
The following steps describe how to perform this task.
1.
Right-click the solution entry in Solution Explorer and choose Add
➤➤➪➤➤
Existing Project from 
the context menu. You see the Add Existing Project dialog box shown in Figure 16-4.
fIgURE 16-4: 
Locate IPY.EXE and add it to your solution.
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CHAPTER 16
ExtEnding ironPython Using C#
2.
Locate 
IPY.EXE
on your hard drive and highlight it. Click Open. You see a new project entry 
added to the solution.
3.
Right-click the ipy entry in Solution Explorer and choose Set as Startup Project from the con-
text menu. This step ensures that choosing one of the startup options from the Debug menu 
starts the IronPython application.
4.
Right-click the ipy entry in Solution Explorer and choose Properties from the context menu. 
You’ll see the General tab of the ipy Properties window shown in Figure 16-5.