On Tue, Oct 30, 2012 at 9:26 PM, Travis Oliphant <tra...@continuum.io>wrote:
> The NPY_CHAR is not a "real type". There are no type-coercion functions > attached to it nor ufuncs nor a full dtype object. However, it is used > to mimic old Numeric character arrays (especially for copying a string). > > It should have been deprecated before changing the ABI. I don't think it > was realized that it was part of the ABI (mostly for older codes that > depended on Numeric). I think it was just another oversight that > inserting type-codes changes this part of the ABI. > > The positive side is that It's a small part of the ABI and not many codes > should depend on it. At this point, I'm not sure what can be done, except > to document that NPY_CHAR has been deprecated in 1.7.0 and remove it in > 1.8.0 to avoid future ABI difficulties. > > The short answer, is that codes that use NPY_CHAR must be recompiled to be > compatible with 1.6.0. > > IIRC, it was proposed to remove it at one point, but the STScI folks wanted to keep it because their software depended on it. <snip> Chuck
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