converting old project to Python 3 was: Re: Why Python 3?

[Eric S. Johansson]

On 4/19/2014 12:04 AM, Ryan Hiebert wrote:
> If you are starting a new project, I'd highly encourage you to use 
> Python 3. It is a stable, well supported, and beautiful language, and 
> gives you the full power of the innovation that is current in the 
> Python world. Python 2 is still well supported (for a while to come), 
> but you won't have the same access to new features and ideas that you 
> would on Python 3.
>
> The only reason that I'd still be on Python 2 is if I absolutely had 
> to use a library that for some reason is not yet working on Python 3. 
> Even then, I'd work hard to try and write it in Python 3 style Python 
> 2, because I'd want to be on Python 3 as soon as possible.

The Python extensions to NaturallySpeaking are combination of C++ for a 
COM interface and Python for grammar management. 
http://qh.antenna.nl/unimacro/implementation_and_acceptance_of_natlink.pdf

How hard is it to convert from C++ extensions for 2.x to 3.x? are there 
any tools to help with the process?

Thanks for any insights.

--- eric