Python Version Testing Tool?

[Serge Orlov]

Michael Yanowitz wrote:
> Hello:
>
>    Is there a version testing tool available for Python
> such that I can check to see if my code will still run in
> versions 2.2, 2.3, 2.4.3, and 1.1 (for example) (or whatever)
> without having to install all these different versions on my
> computer?

Such tool will never be reliable, unless it duplicates all the work
that went into all python versions.