[PyQt] SIP Error with a %MethodCode
Hi,
I have, in C++, a method wich return an array of double and I've set a
MethodCode in the .sip file to convert the array to a Python list of int.
The array in the C++ code:
-
double lr[256];
for (int i = 0 ; i 256 ; i++)
{
float val = cvRound(b_hist.atfloat(i));
lr[i] = val;
}
return *lr;
-
The .sip file:
-
%Module histogram
class Histogram {
%TypeHeaderCode
#include histogram.h
%End
public:
int loadImage(char*) ;
double getHistogram() ;
%MethodCode
PyObject *l ;
int size = 256 ;
// Create the Python list of the correct length.
if ((l = PyList_New(size)) == NULL)
return NULL;
// Go through each element in the C++ instance and convert it to a
// wrapped object.
for (int i = 0; i size; ++i)
{
// Add the wrapper to the list.
PyList_SET_ITEM(l, i, PyFloat_FromDouble(sipCpp - at(i)));
}
return l;
%End
};
---
The error when I execute make:
vincent@djoliba:~/oqapy-2/C++/exemples/2$ make
g++ -c -O2 -g -fPIC -Wall -W -DNDEBUG -I. -I/usr/include/python2.7 -o
siphistogramcmodule.o siphistogramcmodule.cpp
g++ -c -O2 -g -fPIC -Wall -W -DNDEBUG -I. -I/usr/include/python2.7 -o
siphistogramHistogram.o siphistogramHistogram.cpp
histogram.sip: In function ‘PyObject*
meth_Histogram_getHistogram(PyObject*, PyObject*)’:
histogram.sip:28:9: erreur: ‘class Histogram’ has no member named ‘at’
make: *** [siphistogramHistogram.o] Erreur 1
In this context, what represent 'sipCpp'? The returned value ?
Thanks
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Re: [PyQt] SIP Error with a %MethodCode
On Sun, 17 Mar 2013 10:10:00 +0100, Vincent Vande Vyvre
vincent.vandevy...@swing.be wrote:
Hi,
I have, in C++, a method wich return an array of double and I've set a
MethodCode in the .sip file to convert the array to a Python list of
int.
The array in the C++ code:
-
double lr[256];
for (int i = 0 ; i 256 ; i++)
{
float val = cvRound(b_hist.atfloat(i));
lr[i] = val;
}
return *lr;
-
The .sip file:
-
%Module histogram
class Histogram {
%TypeHeaderCode
#include histogram.h
%End
public:
int loadImage(char*) ;
double getHistogram() ;
%MethodCode
PyObject *l ;
int size = 256 ;
// Create the Python list of the correct length.
if ((l = PyList_New(size)) == NULL)
return NULL;
// Go through each element in the C++ instance and convert it to a
// wrapped object.
for (int i = 0; i size; ++i)
{
// Add the wrapper to the list.
PyList_SET_ITEM(l, i, PyFloat_FromDouble(sipCpp - at(i)));
}
return l;
%End
};
---
The error when I execute make:
vincent@djoliba:~/oqapy-2/C++/exemples/2$ make
g++ -c -O2 -g -fPIC -Wall -W -DNDEBUG -I. -I/usr/include/python2.7 -o
siphistogramcmodule.o siphistogramcmodule.cpp
g++ -c -O2 -g -fPIC -Wall -W -DNDEBUG -I. -I/usr/include/python2.7 -o
siphistogramHistogram.o siphistogramHistogram.cpp
histogram.sip: In function ‘PyObject*
meth_Histogram_getHistogram(PyObject*, PyObject*)’:
histogram.sip:28:9: erreur: ‘class Histogram’ has no member named ‘at’
make: *** [siphistogramHistogram.o] Erreur 1
In this context, what represent 'sipCpp'? The returned value ?
You code just implements a type convertor - %MethodCode does more than
that.
See...
http://pyqt.sourceforge.net/Docs/sip4/directives.html#directive-%MethodCode
sipCpp is this, the Histogram instance.
You've defined getHistogram() as returning a double, but you say it
returns an array of doubles.
You haven't called Histogram::getHistogram().
You have included return statements which you must not do.
Phil
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[PyQt] empty container in QSettings: TypeError
Hi all,
When I store a list of strings (but happening to be empty) in
QSettings (using QString and QVariant api 2):
e.g.:
paths = []
QSettings().setValue('paths', paths)
Retrieving it yields a TypeError, instead of an empty list:
QSettings().value('paths', [], 'QString')
Traceback (most recent call last):
File stdin, line 1, in module
TypeError: unable to convert a QVariant of type 0 to a QMetaType of
type 10
What is the most elegant way to circumvent this? cathing the TypeError
and returning the empty list?
Best regards,
Wilbert
--
Wilbert Berendsen
(http://www.wilbertberendsen.nl)
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Re: [PyQt] Symbol not found: _sipQtConnect (Qt5 and PyQt 4.10 on OSX, 32 bit)
On 16/03/13 21:56, Phil Thompson wrote: On Sat, 16 Mar 2013 14:16:08 +1300, Glenn Ramsey g...@componic.co.nz wrote: On 15/03/13 22:07, Phil Thompson wrote: On Fri, 15 Mar 2013 15:51:00 +1300, Glenn Ramsey g...@componic.co.nz wrote: Hi, I have built a 32 bit version of PyQt on OSX (10.8.2) using Qt5, but it doesn't work: Make sure the qpy libraries are being built as you expect (ie. 32 bits rather than 64), ie. that your change to macx-clang-32 is being applied to everything. Phil Thanks Phil, that does appear to be the problem. QtCore is being built as 64 bit, everything else as 32 bit (this is in a freshly untarred dir): $find . -name '*.o' | xargs file ./pylupdate/fetchtr.o: Mach-O object i386 ./pylupdate/main.o: Mach-O object i386 ./pylupdate/merge.o: Mach-O object i386 ./pylupdate/metatranslator.o: Mach-O object i386 ./pylupdate/moc_translator.o: Mach-O object i386 ./pylupdate/numberh.o: Mach-O object i386 ./pylupdate/proparser.o: Mach-O object i386 ./pylupdate/sametexth.o: Mach-O object i386 ./pylupdate/simtexth.o: Mach-O object i386 ./pylupdate/translator.o: Mach-O object i386 ./pyrcc/main.o: Mach-O object i386 ./pyrcc/rcc.o: Mach-O object i386 ./qpy/QtCore/moc_qpycore_pyqtproxy.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_chimera.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_chimera_signature.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_chimera_storage.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_classinfo.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_init.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_misc.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_post_init.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtboundsignal.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtconfigure.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtmethodproxy.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtproperty.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtproxy.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtpyobject.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtsignal.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtslot.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qabstracteventdispatcher.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qmetaobject.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qmetaobject_helpers.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qobject_getattr.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qobject_helpers.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qpynullvariant.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qstring.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qstringlist.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qvariant.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qvariant_value.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_sip_helpers.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_types.o: Mach-O 64-bit object ./qpy/QtGui/moc_qpytextobject.o: Mach-O 64-bit object ./qpy/QtOpenGL/qpyopengl_attribute_array.o: Mach-O 64-bit object ./qpy/QtOpenGL/qpyopengl_uniform_value_array.o: Mach-O 64-bit object ./Qt/sipQtcmodule.o: Mach-O object i386 ./QtCore/sipQtCorecmodule.o: Mach-O object i386 8 What do I need to do to fix it? Glenn ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Symbol not found: _sipQtConnect (Qt5 and PyQt 4.10 on OSX, 32 bit)
On Mon, 18 Mar 2013 08:17:18 +1300, Glenn Ramsey g...@componic.co.nz wrote: On 16/03/13 21:56, Phil Thompson wrote: On Sat, 16 Mar 2013 14:16:08 +1300, Glenn Ramsey g...@componic.co.nz wrote: On 15/03/13 22:07, Phil Thompson wrote: On Fri, 15 Mar 2013 15:51:00 +1300, Glenn Ramsey g...@componic.co.nz wrote: Hi, I have built a 32 bit version of PyQt on OSX (10.8.2) using Qt5, but it doesn't work: Make sure the qpy libraries are being built as you expect (ie. 32 bits rather than 64), ie. that your change to macx-clang-32 is being applied to everything. Phil Thanks Phil, that does appear to be the problem. QtCore is being built as 64 bit, everything else as 32 bit (this is in a freshly untarred dir): $find . -name '*.o' | xargs file ./pylupdate/fetchtr.o: Mach-O object i386 ./pylupdate/main.o: Mach-O object i386 ./pylupdate/merge.o: Mach-O object i386 ./pylupdate/metatranslator.o: Mach-O object i386 ./pylupdate/moc_translator.o: Mach-O object i386 ./pylupdate/numberh.o: Mach-O object i386 ./pylupdate/proparser.o: Mach-O object i386 ./pylupdate/sametexth.o: Mach-O object i386 ./pylupdate/simtexth.o: Mach-O object i386 ./pylupdate/translator.o: Mach-O object i386 ./pyrcc/main.o: Mach-O object i386 ./pyrcc/rcc.o: Mach-O object i386 ./qpy/QtCore/moc_qpycore_pyqtproxy.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_chimera.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_chimera_signature.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_chimera_storage.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_classinfo.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_init.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_misc.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_post_init.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtboundsignal.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtconfigure.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtmethodproxy.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtproperty.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtproxy.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtpyobject.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtsignal.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_pyqtslot.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qabstracteventdispatcher.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qmetaobject.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qmetaobject_helpers.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qobject_getattr.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qobject_helpers.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qpynullvariant.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qstring.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qstringlist.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qvariant.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_qvariant_value.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_sip_helpers.o: Mach-O 64-bit object ./qpy/QtCore/qpycore_types.o: Mach-O 64-bit object ./qpy/QtGui/moc_qpytextobject.o: Mach-O 64-bit object ./qpy/QtOpenGL/qpyopengl_attribute_array.o: Mach-O 64-bit object ./qpy/QtOpenGL/qpyopengl_uniform_value_array.o: Mach-O 64-bit object ./Qt/sipQtcmodule.o: Mach-O object i386 ./QtCore/sipQtCorecmodule.o: Mach-O object i386 8 What do I need to do to fix it? Glenn As we are talking hacks here anyway... Edit your installed sipconfig.py and change the value of 'platform' in _pkg_config to 'macx-clang-32'. Then back out all your related changes to PyQt's configure.py. In PyQt's new build system (4.10.1 hopefully) you will just be able to pass --spec macx-clang-32 to its configure.py. Phil ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Symbol not found: _sipQtConnect (Qt5 and PyQt 4.10 on OSX, 32 bit)
On 18/03/13 11:18, Phil Thompson wrote:
On Mon, 18 Mar 2013 08:17:18 +1300, Glenn Ramsey g...@componic.co.nz
wrote:
On 16/03/13 21:56, Phil Thompson wrote:
On Sat, 16 Mar 2013 14:16:08 +1300, Glenn Ramsey g...@componic.co.nz
wrote:
On 15/03/13 22:07, Phil Thompson wrote:
On Fri, 15 Mar 2013 15:51:00 +1300, Glenn Ramsey g...@componic.co.nz
wrote:
Hi,
I have built a 32 bit version of PyQt on OSX (10.8.2) using Qt5, but
it
doesn't
work:
Make sure the qpy libraries are being built as you expect (ie. 32 bits
rather than 64), ie. that your change to macx-clang-32 is being applied
to
everything.
Phil
Thanks Phil, that does appear to be the problem. QtCore is being built
as
64
bit, everything else as 32 bit (this is in a freshly untarred dir):
$find . -name '*.o' | xargs file
./pylupdate/fetchtr.o:
Mach-O object i386
./qpy/QtCore/moc_qpycore_pyqtproxy.o:
Mach-O 64-bit object
8
What do I need to do to fix it?
Glenn
As we are talking hacks here anyway...
Edit your installed sipconfig.py and change the value of 'platform' in
_pkg_config to 'macx-clang-32'. Then back out all your related changes to
PyQt's configure.py.
In PyQt's new build system (4.10.1 hopefully) you will just be able to
pass --spec macx-clang-32 to its configure.py.
Phil
It is already set to that.
$ more
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/sipconfig.py
...
# These are installation specific values created when SIP was configured.
_pkg_config = {
'arch': 'i386',
'default_bin_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin',
'default_mod_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages',
'default_sip_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/share/sip',
'deployment_target': '',
'platform': 'macx-clang-32',
'py_conf_inc_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7',
'py_inc_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7',
'py_lib_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/config',
'py_version': 0x020703,
'sip_bin':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/sip',
'sip_config_args':'--arch i386 --platform macx-clang-32',
'sip_inc_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7',
'sip_mod_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages',
'sip_version':0x040e04,
'sip_version_str':'4.14.4',
'universal': ''
}
...
Glenn
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Re: [PyQt] Symbol not found: _sipQtConnect (Qt5 and PyQt 4.10 on OSX, 32 bit)
On Mon, 18 Mar 2013 13:36:51 +1300, Glenn Ramsey g...@componic.co.nz
wrote:
On 18/03/13 11:18, Phil Thompson wrote:
On Mon, 18 Mar 2013 08:17:18 +1300, Glenn Ramsey g...@componic.co.nz
wrote:
On 16/03/13 21:56, Phil Thompson wrote:
On Sat, 16 Mar 2013 14:16:08 +1300, Glenn Ramsey g...@componic.co.nz
wrote:
On 15/03/13 22:07, Phil Thompson wrote:
On Fri, 15 Mar 2013 15:51:00 +1300, Glenn Ramsey
g...@componic.co.nz
wrote:
Hi,
I have built a 32 bit version of PyQt on OSX (10.8.2) using Qt5,
but
it
doesn't
work:
Make sure the qpy libraries are being built as you expect (ie. 32
bits
rather than 64), ie. that your change to macx-clang-32 is being
applied
to
everything.
Phil
Thanks Phil, that does appear to be the problem. QtCore is being built
as
64
bit, everything else as 32 bit (this is in a freshly untarred dir):
$find . -name '*.o' | xargs file
./pylupdate/fetchtr.o:
Mach-O object i386
./qpy/QtCore/moc_qpycore_pyqtproxy.o:
Mach-O 64-bit object
8
What do I need to do to fix it?
Glenn
As we are talking hacks here anyway...
Edit your installed sipconfig.py and change the value of 'platform' in
_pkg_config to 'macx-clang-32'. Then back out all your related changes
to
PyQt's configure.py.
In PyQt's new build system (4.10.1 hopefully) you will just be able to
pass --spec macx-clang-32 to its configure.py.
Phil
It is already set to that.
$ more
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/sipconfig.py
...
# These are installation specific values created when SIP was
configured.
_pkg_config = {
'arch': 'i386',
'default_bin_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin',
'default_mod_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages',
'default_sip_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/share/sip',
'deployment_target': '',
'platform': 'macx-clang-32',
'py_conf_inc_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7',
'py_inc_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7',
'py_lib_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/config',
'py_version': 0x020703,
'sip_bin':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/sip',
'sip_config_args':'--arch i386 --platform macx-clang-32',
'sip_inc_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7',
'sip_mod_dir':
'/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages',
'sip_version':0x040e04,
'sip_version_str':'4.14.4',
'universal': ''
}
...
In your original report you stated that sip was built with just '--arch
i386'. '--platform macx-clang-32' is not supported and configure.py will
generate an error message if used, so I don't see how that configuration
could be created.
With a clean PyQt, set the QMAKESPEC environment variable to macx-clang-32
and then run configure.py. That works for me.
Phil
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