Message3814

We decided on:

o Nuking support for In/OutputStream in file() and PyFile(). groves 
originally did this, mostly because supporting this requires a really 
gross hack

o Going forward we want this functionality to live elsewhere, in 
FileUtil.wrap

o However since open is now a function in 2.5, supporting 
In/OutputStreams there isn't such a lame hack -- so I've added support 
for this there in r5606 -- albeit deprecated. Using open on streams will 
work on 2.5 but emit a DeprecationWarning to use FileUtil instead. We'll 
remove this in 2.6

So modjy should really move to FileUtil if sys.version_info >= (2, 5)