Hi,

On August 22, 2017, SCons project announced the release of an alpha build of SCons 3 that supports Python 2.7, 3.5 and 3.6. As noted in #7105, an upgrade to SCons is all we need at this point before working on Python 3 upgrade feasibility research. Now that SCons 3 alpha is here, I think the stage is almost set to start working on Python 3 upgrade research. But before the research can commence, I suggest upgrading to SCons 3.0.0 before commencing this work, which also gives us some time to play with this version by building current NVDA source code files.

Thanks.