Re: [Jython-users] javaos and stat trouble

[<bc...@wo...>]

[Robert W. Bill]

>Freezing servlet applications have resulted in difficulty with
>the javaos module.  The simple scenario is I need to use
>os.stat(file), but all frozen applications return the error:
>	
>    AttributeError: class 'org.python.modules.os' has no attribute 'stat'
>
>When using jythonc, i've tried:
>
>    jythonc -a -j app.jar jyDispatch.py
>    jythonc -a -j app.jar jyDispatch.py javaos os re string others...
>    jythonc -c -j app.jar jyDispatch.py javaos etc....
>    jythonc -a -A c:\jython-2.0\lib\javaos -j app.jar jyDispatch.py os
>
>All result in the above AttributeError.
>
>I've assumed stat requires os + javaos- does it?  

Yes.

>How do I freeze an application so that I can use it? 

When I just tried to freeze this little module I got an NPE:

  import os
  print os.stat

This is an unintended sideeffect on a hack I added to satisfy site.py's
use of the os module. It occur when sys.prefix is None which typically
happens for frozen applications.

Changing the module to:

  import sys
  sys.prefix = "."

  import os
  print os.stat

and it runs as expected. I compiled the module with the simple:

  jythonc.bat -j app.jar -a app.py

I'm not 100% sure this is the situation you are seeing, but please give
it a try.

regards,
finn