NumPy-Discussion

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numpy-discussion@python.org

January 2015

48 participants
53 discussions

numpy developers
by Charles R Harris 02 Jan '15

02 Jan '15

Hi All, I've invited Alex Griffing onto the team to be a numpy developer. He has been contributing fixes and reviews for a while and it is time to give him more opportunity to contribute. I think he will do well. Chuck

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Re: [Numpy-discussion] numpy.fromiter in numpypy
by Matti Picus 02 Jan '15

02 Jan '15

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Access dtype kind from cython
by Valentin Haenel 01 Jan '15

01 Jan '15

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-

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