On 12/11/2014 09:48 PM, Terry Reedy wrote: > A possible reason: one is developing an app expected to be released > fall 2015 after the 3.5 release and the app depends on something new > in 3.5. I must admit though that I cannot think of any such thing now > for 3.5. For 3.3 there was the new unicode, which was first committed > about a year before release. For 3.4, there was asyncio, but it was > not committed until beta1, and was hardly usable then. > > So it was a defensible position. Anyone who would check 3.5 could > just as well check 3.4 and have most of the same impact on the summary. The NumPy and SciPy developers who are implementing support for PEP 465 ('@' as a dedicated matrix multiplication operator) will likely want to test against a development version of 3.5 at some point. Using 3.5 isn't strictly required, though, since supporting the @ operator is mostly a matter of implementing the new __matmul__ methods and one can test those by calling them directly instead of using the new operator.
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