Issue1472

I am using Jython 2.5.1 rc 2 on java1.6.0_11 on Win XP.

If I use a very simple bit of code in a file called getfile.py:

print __file__


The following command trace demonstrates its behaviour:

C:\jython2.5.1rc2>jython getfile.py
getfile.py

C:\jython2.5.1rc2>jython getfile.py
getfile.py

C:\jython2.5.1rc2>jython
Jython 2.5.1rc1 (Release_2_5_1rc1:6736:6741, Sep 1 2009, 10:37:37)
[Java HotSpot(TM) Client VM (Sun Microsystems Inc.)] on java1.6.0_11
Type "help", "copyright", "credits" or "license" for more information.
>>> import getfile
getfile.py
>>> →

C:\jython2.5.1rc2>jython
Jython 2.5.1rc1 (Release_2_5_1rc1:6736:6741, Sep 1 2009, 10:37:37)
[Java HotSpot(TM) Client VM (Sun Microsystems Inc.)] on java1.6.0_11
Type "help", "copyright", "credits" or "license" for more information.
>>> import getfile
getfile$py.class
>>> →

OK, so this is default behavior?

I see the same happens in python:

C:\Python25>python getfile.py
getfile.py

C:\Python25>python getfile.py
getfile.py

C:\Python25>python
Python 2.5.4 (r254:67916, Dec 23 2008, 15:10:54) [MSC v.1310 32 bit
(Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import getfile
getfile.py
>>> ^Z


C:\Python25>python
Python 2.5.4 (r254:67916, Dec 23 2008, 15:10:54) [MSC v.1310 32 bit
(Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import getfile
getfile.pyc
>>>


What would be the workaround if the name of the compiled file is of no
use to you, only the original script?

This is the intended behavior as you've found with CPython. You always 
need to handle the extension when you're trying to determine the 
original .py script from __file__, e.g. see doctest's handling of it:

http://fisheye3.atlassian.com/browse/jython/trunk/jython/Lib/doctest.py?
r=5206#l967