On Sun, Nov 12, 2017, at 12:12 PM, David Burns wrote: > I am not saying it should but if we have a requirement for python 3, > we are also going to have a requirement for py2 to both be available > for local development. Correct, and as far as I know that's the plan of record. As Greg said, we're not going to convert all the code in the tree to run under Python 3 immediately, and we will likely have some laggards that stay on Python 2 for a while. We do have folks working on making the in-tree Python code Python 3 compatible (thanks ahal for leading that effort!), so hopefully we could get to a point where Python 3 is used for most things but it's a fair amount of work. We'd simply like to have Python 3 available for some code that would benefit from its faster execution speed and things like asyncio. Greg floated the idea of doing moz.build evaluation in Python 3 last week, which seems like a great candidate. -Ted
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