On Wed, Jan 13, 2016, at 09:21, sjmsoft at gmail.com wrote: > This strikes me as very good advice. Thanks for being so far-sighted. > And let's hope that Python 4 has fewer incompatibilities (none would > good) than Python 3! Who says there's going to be a Python 4? I always assumed 3.9 would be followed by 3.10.