Mailman 3 November 2007 - NumPy-Discussion

Re: [Numpy-discussion] numpy FFT memory accumulation
by Ray S 01 Nov '07

01 Nov '07

At 09:00 AM 11/1/2007, you wrote: I saw that Numeric did also (I still use Numeric for smaller array speed) but much more slowly. I will try to repeat with a small demo and post. It turns out to be some aspect of mixing numpy and Numeric; the attached *Stable.py files allocate memory that stays exactly the same mixedGrows.py grows by about 50kB/s while changing slightly, randomly; note that the array is assigned as numpy and operated on with Numeric functions. My main app also uses mmap/numpy to assign the arrays to shared memory for multiple processes, and does other operations as well, possibly accounting for the faster memory growth. I'll re-factor to an all-numpy solution and test. I used Numeric functions for the ~40% speed increase, but I don't have a compiled version of arrayfrombuffer() for Numeric http://www.canonical.org/~kragen/sw/arrayfrombuffer/ (compiler version woes) so, I must use numpy.frombuffer() with mmap to create the shared arrays... Ray

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Re: [Numpy-discussion] numpy FFT memory accumulation
by Ray S 01 Nov '07

01 Nov '07

At 09:00 AM 11/1/2007, Chuck wrote: In Python, collections.deque makes a pretty good circular buffer. Numpy will make an array out of it, which involves a copy, but it might be better than what you are doing now. hmmm, I'll think more about that - and the copy is only at program start, it seems the fft can always be fft(d[:-N]) >>> from collections import deque >>> import numpy as N >>> d = deque(N.zeros(10,)) >>> d.extend(N.ones(4,)) >>> d deque([0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0]) >>> [d.pop() for i in range(4)] [1.0, 1.0, 1.0, 1.0] >>> d deque([0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]) An additional complication is that I pass the numpy (or Numeric) array address to the ctypes library call so that the data is placed directly into the array from the call. I use the if/else end wrap logic to determine whether I need to do a split and copy if the new data wraps. Thanks, Ray

2 1

Problem with numpy on Leopard
by Brian Granger 01 Nov '07

01 Nov '07

Hi, It turns out that Leopard includes numpy. But it is an older version that won't detect the version string of gfortran correctly (thus preventing scipy from being installed). But, when I downloaded the numpy svn and did python setup.py python was still finding the older version of numpy. The problem is a trivial but unfortunate ordering of things in the default sys.path. Here is the message that I sent to the pythonmac-sig about this: ************************************************************************ I have been playing around with python on Leopard today. Overall, I am very pleased, but I just ran into a problem that will affect a large number of users. In Leopard, Apple includes a number of python packages in: ls /System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python CoreGraphics easy_install.pyc setuptools-0.6c7-py2.5.egg-info OpenSSL fetchmailconf.py site.py PyObjC fetchmailconf.pyc site.pyc PyObjC.pth fetchmailconf.pyo site.pyo PyRSS2Gen-1.0.0-py2.5.egg-info libsvn svn PyRSS2Gen.py macholib twisted PyRSS2Gen.pyc macholib-1.2.1.dev-py2.5.egg-info wx Twisted-2.4.0-py2.5.egg-info modulegraph wx-2.8-mac-unicode Twisted_Words-0.4.0-py2.5.egg-info modulegraph-0.7.2.dev-py2.5.egg-info wxPython Twisted_Xish-0.4.0-py2.5.egg-info numpy wxPython_common-2.8.4.0-py2.5.egg-info altgraph numpy-1.0.1-py2.5.egg-info wxaddons altgraph-0.6.8.dev-py2.5.egg-info pkg_resources.py wxaddons-2.8.4.0-py2.5.egg-info bdist_mpkg pkg_resources.pyc wxversion.py bdist_mpkg-0.4.3.dev-py2.5.egg-info py2app wxversion.pyc bonjour py2app-0.4.1.dev-py2.5.egg-info xattr bonjour_py-0.2-py2.5.egg-info pyOpenSSL-0.6-py2.5.egg-info xattr-0.5-py2.5.egg-info dateutil python_dateutil-1.2-py2.5.egg-info zope easy_install.py setuptools zope.interface-3.3.0-py2.5.egg-info At first I was very excited to see that Apple is including things like setuptools, numpy, twisted...... But then I saw that some of the versions are quite old. Naturally, I grabbed the latest numpy version from svn and did a python setup.py install. Everything built just fine, but when I did an import numpy, I got Apples version: >>> import numpy >>> print numpy.__file__ /System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python/numpy/__init__.pyc After looking at sys.path, it became clear what the problem is: Running python setup.py install on Leopard causes packages to be installed in the usual: /Library/Python/2.5/site-packages But, Apple put this directory _after_ /System/Library/Frameworks/Python.framework/Versions/2.5/Extras/lib/python in sys.path. This, even if a user installs a newer version of one of these packages, the builtin python will always use Apple's older version. Obviously, I can set PYTHONPATH to get /Library/Python/2.5/site-packages earlier in the sys.path list, but this is going to bite many people. Is this a bug that I should report to Apple, or is there a better work around? Also, this information needs to be posted somewhere so we don't see this question a billion times on various lists over the lifetime of Leopard. Cheers, Brian

5 6

matrix problem: float to matrix power
by Alan G Isaac 01 Nov '07

01 Nov '07

>>> 1.0**numpy.array([1,2,3]) array([ 1., 1., 1.]) >>> 1.0**numpy.mat([1,2,3]) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: unsupported operand type(s) for ** or pow(): 'float' and 'matrix' Why the restriction for matrices? Same question for matrices conformable for broadcasting: why not produce the equivalent of the array result? Cheers, Alan Isaac

4 7

Re: [Numpy-discussion] numpy FFT memory accumulation
by Ray Schumacher 01 Nov '07

01 Nov '07

At 11:55 PM 10/31/2007, Travis wrote: >Ray S wrote: > > I am using > > fftRes = abs(fft.rfft(data_array[end-2**15:end])) > > >At first glance, I would say that I don't expect memory to be growing >here, so it looks like a problem with rfft that deserves looking into. I saw that Numeric did also (I still use Numeric for smaller array speed) but much more slowly. I will try to repeat with a small demo and post. >Does data_array keep growing? no, it is a 64k circular buffer Which reminds me, I've been wanting to try to build a Numeric circular buffer object; one that, when sliced or assigned to, auto-magically wraps as needed, exposing only an extra pointer attribute for the "end". I currently always do it with Python if-s and pointer vars for these products that only do "real time" data analysis. >From: "Anne Archibald" <peridot.faceted(a)gmail.com> >If the range is *really* small, you can try using a DFT - sometimes >that is fast enough, and gives you just the bins you're curious about. I've considered weave'ing a simple sine transform with specified range, but until I do and test I won't know if my own implementation is any faster than just the FFTPACK. >If the range is bigger than that, but still a small fraction of the >FFT size, you can do some tricks where you band-pass filter the data >... >There are also "zoom fft" and "chirp-z" techniques which are supposed >to give you only part of the FFT, but the wisdom is that unless you >want less than a few percent of the data points you're better just >FFTing and throwing lots of data away. I've tried zoom before; the issue was just that - 2 FFTs and a shift or convolution eats a lot of CPU cycles and falls behind the real time data. The range of interest in the Fourrier domain is small, 3kHz-7kHz. The sample rate is high for precise phase information. I've got some more testing to do, it seems. Thanks, Ray -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.15/1101 - Release Date: 10/31/2007 10:06 AM

2 1

how to get/set column
by dev new 01 Nov '07

01 Nov '07

is there a method for numpy arrays and matrices to get/set a particular column i know that a row can be fetched by mymat[1,:] etc can this be done for a column dn

2 1

strange problem compiling against ndarrayobject.h
by Vincent Schut 01 Nov '07

01 Nov '07

Hmm, it seems my original message did not come through? Not in gmane, at least... Well, here's again: Hi numpy and/or gdal guru's, I'm suddenly getting into trouble compiling gdal's python extension, when it includes ndarrayobject.h from numpy. First it complains about my python not being unicode, though I am sure it is unicode, and then it bails out with all kinds of errors (see snippet below). Numpy people, please read on even though this might seem a gdal problem, because it clearly is numpy related, see the snippet... I've tried everything I could think of, but to no avail. I hope one of you can give me a hint, because I'm kind of clueless, and even don't know in what direction I should search... Here is a paste from the output from building (python setup.py build) in the gdal/swig/python dir. make[2]: Entering directory `/usr/local/src/gdal/swig/python' python setup.py build numpy include /usr/lib64/python2.5/site-packages/numpy/core/include running build running build_py creating build creating build/lib.linux-x86_64-2.5 copying gdal.py -> build/lib.linux-x86_64-2.5 copying ogr.py -> build/lib.linux-x86_64-2.5 copying osr.py -> build/lib.linux-x86_64-2.5 copying gdalconst.py -> build/lib.linux-x86_64-2.5 creating build/lib.linux-x86_64-2.5/osgeo copying osgeo/gdalnumeric.py -> build/lib.linux-x86_64-2.5/osgeo copying osgeo/gdalconst.py -> build/lib.linux-x86_64-2.5/osgeo copying osgeo/__init__.py -> build/lib.linux-x86_64-2.5/osgeo copying osgeo/osr.py -> build/lib.linux-x86_64-2.5/osgeo copying osgeo/gdal_array.py -> build/lib.linux-x86_64-2.5/osgeo copying osgeo/gdal.py -> build/lib.linux-x86_64-2.5/osgeo copying osgeo/ogr.py -> build/lib.linux-x86_64-2.5/osgeo running build_ext building 'osgeo._gdal' extension C compiler: x86_64-pc-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -fPIC creating build/temp.linux-x86_64-2.5 creating build/temp.linux-x86_64-2.5/extensions compile options: '-I../../port -I../../gcore -I../../alg -I../../ogr -I/usr/lib64/python2.5/site-packages/numpy/core/include -I/usr/include/python2.5 -c' x86_64-pc-linux-gnu-gcc: extensions/gdal_wrap.cpp extensions/gdal_wrap.cpp: In function ‘PyObject* _wrap_MajorObject_SetMetadata__SWIG_0(PyObject*, PyObject*)’: extensions/gdal_wrap.cpp:4570: warning: deprecated conversion from string constant to ‘char*’ x86_64-pc-linux-gnu-g++ -pthread -shared build/temp.linux-x86_64-2.5/extensions/gdal_wrap.o -L../../.libs -L../.. -L/usr/lib64 -lgdal -lpython2.5 -o build/lib.linux-x86_64-2.5/osgeo/_gdal.so building 'osgeo._gdalconst' extension C compiler: x86_64-pc-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -fPIC compile options: '-I../../port -I../../gcore -I../../alg -I../../ogr -I/usr/lib64/python2.5/site-packages/numpy/core/include -I/usr/include/python2.5 -c' x86_64-pc-linux-gnu-gcc: extensions/gdalconst_wrap.c x86_64-pc-linux-gnu-gcc -pthread -shared build/temp.linux-x86_64-2.5/extensions/gdalconst_wrap.o -L../../.libs -L../.. -L/usr/lib64 -lgdal -lpython2.5 -o build/lib.linux-x86_64-2.5/osgeo/_gdalconst.so building 'osgeo._osr' extension C compiler: x86_64-pc-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -fPIC compile options: '-I../../port -I../../gcore -I../../alg -I../../ogr -I/usr/lib64/python2.5/site-packages/numpy/core/include -I/usr/include/python2.5 -c' x86_64-pc-linux-gnu-gcc: extensions/osr_wrap.cpp x86_64-pc-linux-gnu-g++ -pthread -shared build/temp.linux-x86_64-2.5/extensions/osr_wrap.o -L../../.libs -L../.. -L/usr/lib64 -lgdal -lpython2.5 -o build/lib.linux-x86_64-2.5/osgeo/_osr.so building 'osgeo._ogr' extension C compiler: x86_64-pc-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -fPIC compile options: '-I../../port -I../../gcore -I../../alg -I../../ogr -I/usr/lib64/python2.5/site-packages/numpy/core/include -I/usr/include/python2.5 -c' x86_64-pc-linux-gnu-gcc: extensions/ogr_wrap.cpp x86_64-pc-linux-gnu-g++ -pthread -shared build/temp.linux-x86_64-2.5/extensions/ogr_wrap.o -L../../.libs -L../.. -L/usr/lib64 -lgdal -lpython2.5 -o build/lib.linux-x86_64-2.5/osgeo/_ogr.so building 'osgeo._gdal_array' extension C compiler: x86_64-pc-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -fPIC compile options: '-I../../port -I../../gcore -I../../alg -I../../ogr -I/usr/lib64/python2.5/site-packages/numpy/core/include -I/usr/include/python2.5 -c' x86_64-pc-linux-gnu-gcc: extensions/_gdal_array.cpp In file included from /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/arrayobject.h:14, from extensions/gdal_array.h:10, from extensions/_gdal_array.cpp:33: /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:92:2: error: #error Must use Python with unicode enabled. In file included from /usr/include/python2.5/Python.h:62, from extensions/gdal_array.h:16, from extensions/_gdal_array.cpp:33: /usr/include/python2.5/pyport.h:105:1: warning: "PY_SSIZE_T_MAX" redefined In file included from /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/arrayobject.h:14, from extensions/gdal_array.h:10, from extensions/_gdal_array.cpp:33: /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:931:1: warning: this is the location of the previous definition In file included from /usr/include/python2.5/Python.h:62, from extensions/gdal_array.h:16, from extensions/_gdal_array.cpp:33: /usr/include/python2.5/pyport.h:107:1: warning: "PY_SSIZE_T_MIN" redefined In file included from /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/arrayobject.h:14, from extensions/gdal_array.h:10, from extensions/_gdal_array.cpp:33: /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:932:1: warning: this is the location of the previous definition In file included from /usr/include/python2.5/Python.h:131, from extensions/gdal_array.h:16, from extensions/_gdal_array.cpp:33: /usr/include/python2.5/abstract.h:762:1: warning: "PyIndex_Check" redefined In file included from /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/arrayobject.h:14, from extensions/gdal_array.h:10, from extensions/_gdal_array.cpp:33: /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:937:1: warning: this is the location of the previous definition In file included from /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/arrayobject.h:14, from extensions/gdal_array.h:10, from extensions/_gdal_array.cpp:33: /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:919: error: ‘Py_intptr_t’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:920: error: ‘Py_uintptr_t’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1012: error: expected initializer before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1013: error: typedef ‘PyArray_SetItemFunc’ is initialized (use __typeof__ instead) /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1013: error: ‘PyObject’ was not declared in this scope /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1013: error: expected primary-expression before ‘,’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1013: error: expected primary-expression before ‘void’ /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1013: error: expected primary-expression before ‘void’ /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1015: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1015: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1016: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1026: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1026: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1028: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1028: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1029: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1031: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1041: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1043: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1044: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1044: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1046: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1050: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1052: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1053: error: ‘npy_intp’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1056: error: ISO C++ forbids declaration of ‘npy_intp’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1056: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1069: error: ISO C++ forbids declaration of ‘PyArray_GetItemFunc’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1069: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1070: error: ISO C++ forbids declaration of ‘PyArray_SetItemFunc’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1070: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1121: error: ISO C++ forbids declaration of ‘PyObject’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1121: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1171: error: ‘PyObject_HEAD’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1190: error: ISO C++ forbids declaration of ‘PyObject’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1190: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1194: error: ISO C++ forbids declaration of ‘PyObject’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1194: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1203: error: ISO C++ forbids declaration of ‘PyObject’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1203: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1213: error: ISO C++ forbids declaration of ‘PyObject_HEAD’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1214: error: expected ‘;’ before ‘char’ /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1216: error: ISO C++ forbids declaration of ‘npy_intp’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1216: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1217: error: ISO C++ forbids declaration of ‘npy_intp’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1217: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1219: error: ISO C++ forbids declaration of ‘PyObject’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1219: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1229: error: ISO C++ forbids declaration of ‘PyObject’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1229: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1238: error: ‘PyObject_HEAD’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1246: error: ‘PyObject_HEAD’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1249: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1253: error: ‘PyObject’ has not been declared /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1395: error: ISO C++ forbids declaration of ‘PyObject_HEAD’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1396: error: expected ‘;’ before ‘int’ /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1397: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1398: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1399: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1400: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1401: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1402: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1542: error: ISO C++ forbids declaration of ‘PyObject_HEAD’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1543: error: expected ‘;’ before ‘int’ /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1544: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1545: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1547: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1596: error: ISO C++ forbids declaration of ‘PyObject_HEAD’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1600: error: expected ‘;’ before ‘int’ /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1602: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1604: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1606: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1622: error: ‘npy_intp’ does not name a type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1624: error: ISO C++ forbids declaration of ‘PyObject’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1624: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1799: error: ISO C++ forbids declaration of ‘npy_intp’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1799: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1800: error: ISO C++ forbids declaration of ‘npy_intp’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1800: error: expected ‘;’ before ‘*’ token /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1802: error: ISO C++ forbids declaration of ‘PyObject’ with no type /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1802: error: expected ‘;’ before ‘*’ token In file included from /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:1814, from /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/arrayobject.h:14, from extensions/gdal_array.h:10, from extensions/_gdal_array.cpp:33: /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/__multiarray_api.h: In function ‘int _import_array()’: /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/__multiarray_api.h:945: error: ‘PyObject’ was not declared in this scope /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/__multiarray_api.h:945: error: ‘numpy’ was not declared in this scope /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/__multiarray_api.h:945: error: ‘PyImport_ImportModule’ was not declared in this scope /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/__multiarray_api.h:946: error: ‘c_api’ was not declared in this scope /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/__multiarray_api.h:948: error: ‘PyObject_GetAttrString’ was not declared in this scope /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/__multiarray_api.h:949: error: ‘Py_DECREF’ was not declared in this scope /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/__multiarray_api.h:950: error: ‘PyCObject_Check’ was not declared in this scope /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/__multiarray_api.h:951: error: ‘PyCObject_AsVoidPtr’ was not declared in this scope /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/__multiarray_api.h:953: error: ‘Py_DECREF’ was not declared in this scope /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/__multiarray_api.h:958: error: ‘PyExc_RuntimeError’ was not declared in this scope /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/__multiarray_api.h:958: error: ‘PyErr_Format’ was not declared in this scope In file included from /usr/include/python2.5/Python.h:62, from extensions/gdal_array.h:16, from extensions/_gdal_array.cpp:33: /usr/include/python2.5/pyport.h: At global scope: /usr/include/python2.5/pyport.h:97: error: conflicting declaration ‘typedef ssize_t Py_ssize_t’ /usr/lib64/python2.5/site-packages/numpy/core/include/numpy/ndarrayobject.h:930: error: ‘Py_ssize_t’ has a previous declaration as ‘typedef int Py_ssize_t’ extensions/_gdal_array.cpp: In function ‘void init_gdal_array()’: extensions/_gdal_array.cpp:118: warning: deprecated conversion from string constant to ‘char*’ extensions/_gdal_array.cpp: In destructor ‘virtual NUMPYDataset::~NUMPYDataset()’: extensions/_gdal_array.cpp:162: error: ‘struct PyArrayObject’ has no member named ‘ob_refcnt’ extensions/_gdal_array.cpp: In static member function ‘static GDALDataset* NUMPYDataset::Open(GDALOpenInfo*)’: extensions/_gdal_array.cpp:382: error: ‘struct PyArrayObject’ has no member named ‘ob_refcnt’ extensions/_gdal_array.cpp:393: error: ‘struct PyArrayObject’ has no member named ‘dimensions’ extensions/_gdal_array.cpp:394: error: ‘struct PyArrayObject’ has no member named ‘strides’ extensions/_gdal_array.cpp:395: error: ‘struct PyArrayObject’ has no member named ‘dimensions’ extensions/_gdal_array.cpp:396: error: ‘struct PyArrayObject’ has no member named ‘strides’ extensions/_gdal_array.cpp:397: error: ‘struct PyArrayObject’ has no member named ‘dimensions’ extensions/_gdal_array.cpp:398: error: ‘struct PyArrayObject’ has no member named ‘strides’ extensions/_gdal_array.cpp:404: error: ‘struct PyArrayObject’ has no member named ‘dimensions’ extensions/_gdal_array.cpp:405: error: ‘struct PyArrayObject’ has no member named ‘strides’ extensions/_gdal_array.cpp:406: error: ‘struct PyArrayObject’ has no member named ‘dimensions’ extensions/_gdal_array.cpp:407: error: ‘struct PyArrayObject’ has no member named ‘strides’ extensions/_gdal_array.cpp:418: error: ‘struct PyArrayObject’ has no member named ‘data’ going on like this for some more, but I hope this suffices... TIA, Vincent.

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