Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Message-ID: <3CD7CF1C.8060106@stsci.edu>
Date: Tue, 07 May 2002 08:57:00 -0400
From: Todd Miller <jmiller AT stsci DOT edu>
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.2.1) Gecko/20010901
X-Accept-Language: en-us
MIME-Version: 1.0
To: Jochen =?ISO-8859-1?Q?K=FCpper?= <jochen AT unc DOT edu>
CC: numpy-discussion AT lists DOT sourceforge DOT net, cygwin AT cygwin DOT com
Subject: Re: [Numpy-discussion] numarray on Cygwin
References: <lyr8koj439 DOT fsf AT bock DOT chem DOT unc DOT edu>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 8bit
Jochen K�pper wrote:
>I am trying to run numarray on Cygwin.
>(Where Numeric seems to work fine.)
>
>In order to compile it I had to change the use of round to rint, as
>Cygwin's C library (newlib) doesn't have round. The patch is
>attached.
>
>When I use it I don't get far, though:
>,----
>| > python
>| Python 2.2 (#1, Dec 31 2001, 15:21:18)
>| [GCC 2.95.3-5 (cygwin special)] on cygwin
>| Type "help", "copyright", "credits" or "license" for more information.
>| >>> import numarray as na
>| >>> x = na.array([1.0, 2.0])
>| >>> x
>| Traceback (most recent call last):
>| File "<stdin>", line 1, in ?
>| File "/usr/lib/python2.2/site-packages/numarray/numarray.py", line 591, in __repr__
>| MAX_LINE_WIDTH, PRECISION, SUPPRESS_SMALL, ', ', 1)
>| File "/usr/lib/python2.2/site-packages/numarray/arrayprint.py", line 86, in array2string
>| format, item_length = _floatFormat(data, precision, suppress_small)
>| File "/usr/lib/python2.2/site-packages/numarray/arrayprint.py", line 140, in _floatFormat
>| non_zero = numarray.abs(numarray.compress(numarray.not_equal(data, 0), data))
>| File "/usr/lib/python2.2/site-packages/numarray/ufunc.py", line 474, in __call__
>| cfunc, ufargs, scalar)
>| File "/usr/lib/python2.2/site-packages/numarray/ufunc.py", line 312, in _doit
>| apply(cfunc, ufargs)
>| TypeError: 'PyCObject' object is not callable
>| >>>
>`----
>If I print out the type of cfunc down in _doit, I get (the expected)
>,----
>| <type 'PyCObject'>
>`----
>
>Any ideas, probably some hints how to proceed?
>
Hi Jochen,
Trying to call a PyCObject is a symptom of an inconsistent installation.
Extension functions stopped being passed around as PyCObjects in
numarray-0.3. Instead, I created a new C-type called CFunc which binds
an "extension function implementation" to the correct generic wrapper.
An added benefit was that CFuncs are directly callable as python
functions, whereas PyCObjects were not.
The repr of a CFunc looks more like:
>>> import _ufuncInt32
>>> _ufuncInt32.functionDict[_ufuncInt32.functionDict.keys()[0]]
<cfunc 'rshift_Int32_reduce' at 4019ffec check-self:0 align:1 io:(1, 1)>
So, it appears that your c-extensions are not yet updated to CFuncs, but
your numarray python code is updated to CFuncs.
I suggest deleting your numarray installation and re-installing.
Todd
>
>Greetings,
>Jochen
>
>
>------------------------------------------------------------------------
>
>? Lib/ChangeLog
>? Lib/numinclude.py
>Index: Include/numarray/ChangeLog
>===================================================================
>RCS file: /cvsroot/numpy/numarray/Include/numarray/ChangeLog,v
>retrieving revision 1.1
>diff -u -r1.1 ChangeLog
>--- Include/numarray/ChangeLog 22 Apr 2002 20:33:16 -0000 1.1
>+++ Include/numarray/ChangeLog 6 May 2002 22:32:43 -0000
>@@ -1,8 +1,18 @@
>+2002-05-06 Jochen K�pper <jochen AT unc DOT edu>
>+
>+ * numcomplex.h (NUM_CROUND): Use rint instead of round. The latter is
>+ not available on all systems, namely Cygwin.
>+
> 2002-04-10 Jochen K�pper <jochen AT unc DOT edu>
>
> * ndarrayinfo.h: Change NDInfo->strides to NDInfo->stride for
> consistency. Adopt all sources accordingly.
>
>- * genapi.py (bodystring): Do not include emacs' Local Variables
>- section into gnerated files.
>+ * genapi.py (bodystring): Do not include emacs' Local Variables section
>+ into gnerated files.
>+
>
>+ * Local Variables:
>+ * mode: auto-fill
>+ * fill-column: 79
>+ * End:
>Index: Include/numarray/numcomplex.h
>===================================================================
>RCS file: /cvsroot/numpy/numarray/Include/numarray/numcomplex.h,v
>retrieving revision 1.5
>diff -u -r1.5 numcomplex.h
>--- Include/numarray/numcomplex.h 30 Apr 2002 17:29:43 -0000 1.5
>+++ Include/numarray/numcomplex.h 6 May 2002 22:32:43 -0000
>@@ -228,7 +228,7 @@
> #define NUM_CCEIL(p, s) (s).r = ceil((p).r); (s).i = ceil((p).i);
>
> #define NUM_CFABS(p, s) (s).r = fabs((p).r); (s).i = fabs((p).i);
>-#define NUM_CROUND(p, s) (s).r = round((p).r); (s).i = round((p).i);
>+#define NUM_CROUND(p, s) (s).r = rint((p).r); (s).i = rint((p).i);
> #define NUM_CHYPOT(p, q, s) { Complex64 t; \
> NUM_CSQR(p, s); NUM_CSQR(q, t); \
> NUM_CADD(s, t, s); \
>Index: Lib/codegenerator.py
>===================================================================
>RCS file: /cvsroot/numpy/numarray/Lib/codegenerator.py,v
>retrieving revision 1.22
>diff -u -r1.22 codegenerator.py
>--- Lib/codegenerator.py 3 May 2002 19:14:06 -0000 1.22
>+++ Lib/codegenerator.py 6 May 2002 22:32:44 -0000
>@@ -1593,7 +1593,7 @@
> ["minimum", 2, 1, (function_td, "ufminimum"), generic_operator_sigs, opt_minmax_decl],
>
> ["fabs", 1, 1, (function_td, "fabs"), generic_mathfunction_sigs, ""],
>-["around", 1, 1, (function_td, "round"), generic_mathfunction_sigs, ""],
>+["around", 1, 1, (function_td, "rint"), generic_mathfunction_sigs, ""],
> ["hypot", 2, 1, (function_td, "hypot"), generic_mathfunction_sigs, ""],
>
> # Complex ufuncs
>Index: Src/_ufuncBoolmodule.c
>===================================================================
>RCS file: /cvsroot/numpy/numarray/Src/_ufuncBoolmodule.c,v
>retrieving revision 1.8
>diff -u -r1.8 _ufuncBoolmodule.c
>--- Src/_ufuncBoolmodule.c 29 Apr 2002 21:39:50 -0000 1.8
>+++ Src/_ufuncBoolmodule.c 6 May 2002 22:32:45 -0000
>@@ -2365,7 +2365,7 @@
> Float32 *tout = (Float32 *) buffers[1];
>
> for (i=0; i<niter; i++, tin++, tout++) {
>- *tout = round(*tin);
>+ *tout = rint(*tin);
> }
> return 0;
> }
>Index: Src/_ufuncFloat32module.c
>===================================================================
>RCS file: /cvsroot/numpy/numarray/Src/_ufuncFloat32module.c,v
>retrieving revision 1.8
>diff -u -r1.8 _ufuncFloat32module.c
>--- Src/_ufuncFloat32module.c 29 Apr 2002 21:39:50 -0000 1.8
>+++ Src/_ufuncFloat32module.c 6 May 2002 22:32:45 -0000
>@@ -1773,7 +1773,7 @@
> Float32 *tout = (Float32 *) buffers[1];
>
> for (i=0; i<niter; i++, tin++, tout++) {
>- *tout = round(*tin);
>+ *tout = rint(*tin);
> }
> return 0;
> }
>Index: Src/_ufuncFloat64module.c
>===================================================================
>RCS file: /cvsroot/numpy/numarray/Src/_ufuncFloat64module.c,v
>retrieving revision 1.8
>diff -u -r1.8 _ufuncFloat64module.c
>--- Src/_ufuncFloat64module.c 29 Apr 2002 21:39:50 -0000 1.8
>+++ Src/_ufuncFloat64module.c 6 May 2002 22:32:45 -0000
>@@ -1773,7 +1773,7 @@
> Float64 *tout = (Float64 *) buffers[1];
>
> for (i=0; i<niter; i++, tin++, tout++) {
>- *tout = round(*tin);
>+ *tout = rint(*tin);
> }
> return 0;
> }
>Index: Src/_ufuncInt16module.c
>===================================================================
>RCS file: /cvsroot/numpy/numarray/Src/_ufuncInt16module.c,v
>retrieving revision 1.8
>diff -u -r1.8 _ufuncInt16module.c
>--- Src/_ufuncInt16module.c 29 Apr 2002 21:39:51 -0000 1.8
>+++ Src/_ufuncInt16module.c 6 May 2002 22:32:45 -0000
>@@ -2254,7 +2254,7 @@
> Float32 *tout = (Float32 *) buffers[1];
>
> for (i=0; i<niter; i++, tin++, tout++) {
>- *tout = round(*tin);
>+ *tout = rint(*tin);
> }
> return 0;
> }
>Index: Src/_ufuncInt32module.c
>===================================================================
>RCS file: /cvsroot/numpy/numarray/Src/_ufuncInt32module.c,v
>retrieving revision 1.8
>diff -u -r1.8 _ufuncInt32module.c
>--- Src/_ufuncInt32module.c 29 Apr 2002 21:39:51 -0000 1.8
>+++ Src/_ufuncInt32module.c 6 May 2002 22:32:45 -0000
>@@ -2254,7 +2254,7 @@
> Float32 *tout = (Float32 *) buffers[1];
>
> for (i=0; i<niter; i++, tin++, tout++) {
>- *tout = round(*tin);
>+ *tout = rint(*tin);
> }
> return 0;
> }
>Index: Src/_ufuncInt8module.c
>===================================================================
>RCS file: /cvsroot/numpy/numarray/Src/_ufuncInt8module.c,v
>retrieving revision 1.8
>diff -u -r1.8 _ufuncInt8module.c
>--- Src/_ufuncInt8module.c 29 Apr 2002 21:39:51 -0000 1.8
>+++ Src/_ufuncInt8module.c 6 May 2002 22:32:45 -0000
>@@ -2254,7 +2254,7 @@
> Float32 *tout = (Float32 *) buffers[1];
>
> for (i=0; i<niter; i++, tin++, tout++) {
>- *tout = round(*tin);
>+ *tout = rint(*tin);
> }
> return 0;
> }
>Index: Src/_ufuncUInt16module.c
>===================================================================
>RCS file: /cvsroot/numpy/numarray/Src/_ufuncUInt16module.c,v
>retrieving revision 1.8
>diff -u -r1.8 _ufuncUInt16module.c
>--- Src/_ufuncUInt16module.c 29 Apr 2002 21:39:51 -0000 1.8
>+++ Src/_ufuncUInt16module.c 6 May 2002 22:32:45 -0000
>@@ -2249,7 +2249,7 @@
> Float32 *tout = (Float32 *) buffers[1];
>
> for (i=0; i<niter; i++, tin++, tout++) {
>- *tout = round(*tin);
>+ *tout = rint(*tin);
> }
> return 0;
> }
>Index: Src/_ufuncUInt8module.c
>===================================================================
>RCS file: /cvsroot/numpy/numarray/Src/_ufuncUInt8module.c,v
>retrieving revision 1.8
>diff -u -r1.8 _ufuncUInt8module.c
>--- Src/_ufuncUInt8module.c 29 Apr 2002 21:39:51 -0000 1.8
>+++ Src/_ufuncUInt8module.c 6 May 2002 22:32:45 -0000
>@@ -2249,7 +2249,7 @@
> Float32 *tout = (Float32 *) buffers[1];
>
> for (i=0; i<niter; i++, tin++, tout++) {
>- *tout = round(*tin);
>+ *tout = rint(*tin);
> }
> return 0;
> }
>
> numarray.diff
>
> Content-Type:
>
> text/x-patch
> Content-Encoding:
>
> quoted-printable
>
>
--
Todd Miller jmiller AT stsci DOT edu
STSCI / SSG (410) 338 4576
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Bug reporting: http://cygwin.com/bugs.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/