* Eric Moore <[email protected]> [2014-12-30]: > On Monday, December 29, 2014, Valentin Haenel <[email protected]> wrote: > > > Hi, > > > > how do I access the kind of the data from cython, i.e. the single > > character string: > > > > 'b' boolean > > 'i' (signed) integer > > 'u' unsigned integer > > 'f' floating-point > > 'c' complex-floating point > > 'O' (Python) objects > > 'S', 'a' (byte-)string > > 'U' Unicode > > 'V' raw data (void) > > > > In regular Python I can do: > > > > In [7]: d = np.dtype('S') > > > > In [8]: d.kind > > Out[8]: 'S' > > > > Looking at the definition of dtype that comes with cython, I see: > > > > ctypedef class numpy.dtype [object PyArray_Descr]: > > # Use PyDataType_* macros when possible, however there are no macros > > # for accessing some of the fields, so some are defined. Please > > # ask on cython-dev if you need more. > > cdef int type_num > > cdef int itemsize "elsize" > > cdef char byteorder > > cdef object fields > > cdef tuple names > > > > I.e. no kind. > > > > Also, i looked for an appropriate PyDataType_* macro but couldn't find one. > > > > Perhaps there is something simple I could use? > > > > best, > > > > V- > > _______________________________________________ > > NumPy-Discussion mailing list > > [email protected] <javascript:;> > > http://mail.scipy.org/mailman/listinfo/numpy-discussion > > > >From C or cython I'd just use the typenum. Compare against the appropriate > macros, NPY_DOUBLE e.g.
That would be nice, but I am refactoring existing code and it is specifically asking for the kind character. V- _______________________________________________ NumPy-Discussion mailing list [email protected] http://mail.scipy.org/mailman/listinfo/numpy-discussion
