[Numpy-discussion] str/bytes object from arr.data?
Hi, Anybody knows a way to get a str object (bytes for Python = 2.6) out of a buffer object (i.e. the .data attribute of ndarrays) without copying data? I need this for avoid creating a new function that deals with buffer objects (instead of reusing the one for str/byte objects that I already have). So, a matter of laziness :-) Thanks, -- Francesc Alted ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] str/bytes object from arr.data?
As str objects are supposed to be immutable, I think anything official that makes a string from a numpy array is supposed to copy the data. But I think you can use ctypes to wrap a pointer and a length as a python string. Zach On Sep 27, 2010, at 8:28 AM, Francesc Alted wrote: Hi, Anybody knows a way to get a str object (bytes for Python = 2.6) out of a buffer object (i.e. the .data attribute of ndarrays) without copying data? I need this for avoid creating a new function that deals with buffer objects (instead of reusing the one for str/byte objects that I already have). So, a matter of laziness :-) Thanks, -- Francesc Alted ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
Re: [Numpy-discussion] str/bytes object from arr.data?
A Monday 27 September 2010 15:04:14 Zachary Pincus escrigué: As str objects are supposed to be immutable, I think anything official that makes a string from a numpy array is supposed to copy the data. But I think you can use ctypes to wrap a pointer and a length as a python string. Yeah, ctypes is very powerful indeed. Thanks! -- Francesc Alted ___ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
