best way of testing a program exists before using it?

[Tim Golden]

|     Tim> All that said, I think the only thing would be to 
| add a line to the
|     Tim> docs saying sthg like: This will always return False 
| for X_OK under
|     Tim> Win32. I'm happy to submit the patch, but is it worth it?
| 
| Yes, please do.  If people think it works the same on Unix 
| and Windows,
| they'll get burned and just have to reproduce your 
| investigative work to
| figure out what happened.

OK, I've never sent in a patch before (blushes for shame
as he thinks of all the years he's been using Python). Would
you mind pointing me towards some doc or post which tells
me where to look and what to do. Should I checkout svn and 
patch against that? Or what?

Thanks
TJG

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