Could Python supplant Java?

[d2002xx]

> > Yes .. which the File object does not. So you need to wrap it in a
> > FileLike object.
> 
> If you had kept reading, I talk about this.  And mention
> "signatures" as a statically typed solution to this problem.  The
> compiler creates wrapper classes when needed for any object with the
> specified methods.

"signatures"! I ever saw it appear in gcc 2.96 as a C++ extension, but
removed in 3.x... so disappointed. Does it currently exist in any
programming languages?