jython newbee general question docu / os.fstat

[Mark Fink]

Hi there,

unfortunately I am new to Jython and my "Jython Essentials" book is
still in the mail. I looked into the Jython API Doc but could not find
the information.
I am porting a Python library to Jython and some parts are missing. My
question basically is where do I find information on what to use
instead. E.g. I could not find information on the os module. I do not
find the sys module docu either.
The concrete problem is I have something like os.fstat(infile.fileno())
which provokes:
IOError: fileno() is not supported in jpython.
If this question is already documented somewhere please point me to
this direction. I was not able to find it.

Best Regards,
Mark