Professional IronPython

FIgURE 2-3: 
Modify the properties to match your project requirements.
FIgURE 2-2: 
IPY.EXE
becomes the focal point
for a new solution.
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CHAPTER 2
Understanding the ironPython Basics
Command line switches are case sensitive. Using the wrong case can result in 
unexpected behavior. For example, if you use the 
-s
 command line switch in 
place of the 
-S
 command line switch, you’ll obtain an unexpected result from 
the IronPython interpreter. In this case, the interpreter won’t add the user site 
directory to sys.path.
5.
Select the Arguments field. Type 
-D
 NameOfProject
, where 
NameOfProject
is a Python 
(.py) file. For example, the example project uses MyFirst.py, so you’d type 
-D MyFirst.py
. 
Remember that the 
-D
command line switch turns on debugging. You can find other com-
mand line arguments listed in the “Understanding the IPY.EXE Command Line Syntax” 
section of Chapter 1. Include any other command line switches you want to use in the 
Arguments field.
The .py file extension is case sensitive. You must use lowercase for the file 
extension. For example, IronPython will import a module named MyStuff.py, 
but it won’t import a module named MyStuff.PY. Extensions aren’t normally 
case sensitive, so this IronPython oddity could cause difficult-to-find errors.
6.
Select the Working Directory field. Visual Studio will default to using the \Program Files\
IronPython 2.6 directory — a directory that you’re unlikely to use to hold your source code 
files. Change the Working Directory to match your source code directory. Click the ellipses 
to locate the directory on your hard drive using the Browse for Folder dialog box.