import argparse fails, some setup/path issue?

I've written as minimal a python program using argparse as I can. Just three lines.

import argparse
if __name__ == "__main__":
    print "Hello World"

It gets the following error:

File "/Users/pfarrell/sandbox/dbms/extractor/src/extractor.py", line 2, in import argparse ImportError: No module named argparse

This is the first python program I've ever written, so I can easily believe that I've not properly setup some python library path, etc.

This is running on OS-X

python --version  
Python 2.7.1  
pfarrell@way:~/sandbox/dbms/extractor/src$ python -c "import argparse; print argparse"  
<module 'argparse' from '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/argparse.pyc'>

More testing (thanks to the comments)

running it explicitly in the shell works, but running it inside netbeans fails:

shell only

python extractor.py -h  
Hello World  
usage: extractor.py [-h]  

optional arguments:  
  -h, --help  show this help message and exit

Running it as a script shows a completely different path. Looks like the netbeans setup needs a tweak or two

./extractor.py  -h  
/Users/pfarrell/sandbox/dbms/extractor/src  
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip  
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7  
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin  
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac  
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib- scriptpackages  
/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python    
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk  
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old  
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload  
/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC  
/Library/Python/2.7/site-packages  
Hello World

executing inside netbeans

/Users/pfarrell/sandbox/dbms/extractor/src  
/Users/pfarrell/Library/Application Support/NetBeans/7.2.1/jython-2.5.1/Lib  
/Users/pfarrell/Library/Application Support/NetBeans/7.2.1/jython-2.5.1/Lib/site-packages  
/Users/pfarrell/sandbox/dbms/extractor/src  
__classpath__  
__pyclasspath__/  
Hello World

Thanks to all. The path had more than a few issues, as @sberry suggested. I found that netbeans defaults to jpython, which is an older 2.5 version. It also can use the standard python 2.7.1, and when I use that, all is happyness and joy

Thanks a bunch.