On Mon, Apr 7, 2014 at 1:11 PM, Benjamin Peterson <benja...@python.org> wrote: > > > We can populate that struct with array-specific alternatives for > > PySequence/PyMappingMethods and eliminate the need for dynamically > > created array types to allocate those. > > Why would we want to do that?
I assume "that" means "create array types dynamically." There are many reasons to do that in modern array implementations. See for example ctypes. A more practical reason however is that I believe PySequence/PyMappingMethods are cloned whenever a subclass of a sequence/mapping type is created. For better or worse, subclassing of numpy arrays is a popular sport these days.
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