Re: [PyQt] QtDBus: Calling a method with an Array of Strings signature with Python 3
On 05/12/11 21:31, Phil Thompson wrote:
On Mon, 05 Dec 2011 19:12:33 +, Chris Mayo
cjm...@users.sourceforge.net wrote:
Try this...
arg = QDBusArgument()
arg.beginArray(QMetaType.QString)
arg.add()
arg.endArray()
and pass arg to call().
Doesn't seem to work:
device_iface = QtDBus.QDBusInterface('org.freedesktop.UDisks',
'/org/freedesktop/UDisks/devices/sr0', 'org.freedesktop.UDisks.Device',
bus)
arg = QtDBus.QDBusArgument()
arg.beginArray(QMetaType.QString)
arg.add()
arg.endArray()
reply = device_iface.call(DriveEject, arg)
print(reply.errorMessage())
Returns:
Unknown option
because is not a valid option? According to...
http://hal.freedesktop.org/docs/udisks/Device.html#Device.DriveEject
unmount is the only valid option.
Phil
Indeed it does work as:
arg = QtDBus.QDBusArgument()
arg.beginArray(QMetaType.QString)
arg.add(unmount)
arg.endArray()
and so does:
arg = QtDBus.QDBusArgument()
arg.beginArray(QMetaType.QString)
arg.endArray()
Experimenting with other calls shows this is the way to create an empty
Array of Strings.
Chris
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Re: [PyQt] QtDBus: Calling a method with an Array of Strings signature with Python 3
Try this...
arg = QDBusArgument()
arg.beginArray(QMetaType.QString)
arg.add()
arg.endArray()
and pass arg to call().
Doesn't seem to work:
device_iface = QtDBus.QDBusInterface('org.freedesktop.UDisks',
'/org/freedesktop/UDisks/devices/sr0', 'org.freedesktop.UDisks.Device',
bus)
arg = QtDBus.QDBusArgument()
arg.beginArray(QMetaType.QString)
arg.add()
arg.endArray()
reply = device_iface.call(DriveEject, arg)
print(reply.errorMessage())
Returns:
Unknown option
PyQt-x11-gpl-snapshot-4.9-512e7813ed74
Chris
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Re: [PyQt] QtDBus: Unable to convert Array of Object Paths
On 04/12/11 05:34, Phil Thompson wrote: On Fri, 02 Dec 2011 17:37:50 +, Chris Mayo cjm...@users.sourceforge.net wrote: On 02/12/11 01:42, Phil Thompson wrote: On Thu, 01 Dec 2011 20:20:34 +, Chris Mayo cjm...@users.sourceforge.net wrote: Can't get ee8b9c7eb565 to compile: Generating the C++ source for the QtDBus module... sip: /var/tmp/portage/dev-python/PyQt4-4.9_pre20111201/work/PyQt-x11-gpl-snapshot-4.9-ee8b9c7eb565-2.7/sip/QtDBus/qdbusextratypes.sip:95: A class, exception, namespace or mapped type has already been defined with the same name Error: Unable to create the C++ code. This might have been due to a build problem. Try downloading the snapshot again (even though it has the same name). Phil After downloading again a lot of different errors, just the first few: Sorry about that - it isn't triggered the way I normally build. Current snapshot should be Ok. No luck with 65564eb2fcf4 either: x86_64-pc-linux-gnu-g++ -c -march=core2 -msse4.1 -ftree-vectorize -O2 -pipe -fPIC -Wall -W -D_REENTRANT -DNDEBUG -DSIP_PROTECTED_IS_PUBLIC -Dprotected=public -DQT_NO_DEBUG -DQT_CORE_LIB -I. -I/var/tmp/portage/dev-python/PyQt4-4.9_pre20111204/work/PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/qpy/QtDBus -I/usr/include/python2.7 -I/usr/mkspecs/linux-g++ -I/usr/include/qt4/QtDBus -I/usr/include/qt4/QtCore -I/usr/include/qt4 -o sipQtDBusQDBusObjectPath.o sipQtDBusQDBusObjectPath.cpp /var/tmp/portage/dev-python/PyQt4-4.9_pre20111204/work/PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/QtDBus/sipQtDBusQDBusVariant.cpp: In function ‘PyObject* meth_QDBusVariant_variant(PyObject*, PyObject*)’: /var/tmp/portage/dev-python/PyQt4-4.9_pre20111204/work/PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/QtDBus/sipQtDBusQDBusVariant.cpp:45:15: error: ‘QDBusVariant’ does not name a type /var/tmp/portage/dev-python/PyQt4-4.9_pre20111204/work/PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/QtDBus/sipQtDBusQDBusVariant.cpp:47:87: error: ‘sipCpp’ was not declared in this scope ... Chris ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] QtDBus: Unable to convert Array of Object Paths
No luck with 65564eb2fcf4 either: x86_64-pc-linux-gnu-g++ -c -march=core2 -msse4.1 -ftree-vectorize -O2 -pipe -fPIC -Wall -W -D_REENTRANT -DNDEBUG -DSIP_PROTECTED_IS_PUBLIC -Dprotected=public -DQT_NO_DEBUG -DQT_CORE_LIB -I. -I/var/tmp/portage/dev-python/PyQt4-4.9_pre20111204/work/PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/qpy/QtDBus -I/usr/include/python2.7 -I/usr/mkspecs/linux-g++ -I/usr/include/qt4/QtDBus -I/usr/include/qt4/QtCore -I/usr/include/qt4 -o sipQtDBusQDBusObjectPath.o sipQtDBusQDBusObjectPath.cpp /var/tmp/portage/dev-python/PyQt4-4.9_pre20111204/work/PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/QtDBus/sipQtDBusQDBusVariant.cpp: In function ‘PyObject* meth_QDBusVariant_variant(PyObject*, PyObject*)’: /var/tmp/portage/dev-python/PyQt4-4.9_pre20111204/work/PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/QtDBus/sipQtDBusQDBusVariant.cpp:45:15: error: ‘QDBusVariant’ does not name a type /var/tmp/portage/dev-python/PyQt4-4.9_pre20111204/work/PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/QtDBus/sipQtDBusQDBusVariant.cpp:47:87: error: ‘sipCpp’ was not declared in this scope ... I can't reproduce this. This is with Qt v4.8.0rc but I don't think QDBusVariant or qdbusextratypes.h has changed recently. The only includes at the top of the generated PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/QtDBus/sipQtDBusQDBusVariant.cpp are: #include sipAPIQtDBus.h #line 241 /var/tmp/portage/dev-python/PyQt4-4.9_pre20111204/work/PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/sip/QtCore/qvariant.sip #include qvariant.h #line 35 /var/tmp/portage/dev-python/PyQt4-4.9_pre20111204/work/PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/QtDBus/sipQtDBusQDBusVariant.cpp If I manually add: #include qdbusextratypes.h make appears to complete. Chris ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] QtDBus: Unable to convert Array of Object Paths
The only includes at the top of the generated PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/QtDBus/sipQtDBusQDBusVariant.cpp are: #include sipAPIQtDBus.h #line 241 /var/tmp/portage/dev-python/PyQt4-4.9_pre20111204/work/PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/sip/QtCore/qvariant.sip #include qvariant.h #line 35 /var/tmp/portage/dev-python/PyQt4-4.9_pre20111204/work/PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4-2.7/QtDBus/sipQtDBusQDBusVariant.cpp If I manually add: #include qdbusextratypes.h make appears to complete. All my mistake. In trying to investigate the first compilation problem I was zapping out the #include qdbusextratypes.h in qdbusextratypes.sip and forget to remove it when trying out the newer snapshots. Sorry for wasting your time. I now have working arrays of object paths. Chris ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] QtDBus: Calling a method with an Array of Strings signature with Python 3
With Python 2 I can do (where /dev/sr0 is a cdrom):
bus = QtDBus.QDBusConnection.systemBus()
device_iface = QtDBus.QDBusInterface('org.freedesktop.UDisks',
'/org/freedesktop/UDisks/devices/sr0', 'org.freedesktop.UDisks.Device',
bus)
reply = device_iface.call(DriveEject, QStringList())
But with Python 3 this won't work because of QStringList. If I modify it
with:
reply = device_iface.call(DriveEject, [, ])
print(reply.errorMessage())
I get:
Method DriveEject with signature av on interface
org.freedesktop.UDisks.Device doesn't exist
Chris
PyQt-x11-gpl-snapshot-4.9-65564eb2fcf4
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Re: [PyQt] QtDBus: Unable to convert Array of Object Paths
On 02/12/11 01:42, Phil Thompson wrote: On Thu, 01 Dec 2011 20:20:34 +, Chris Mayo cjm...@users.sourceforge.net wrote: Can't get ee8b9c7eb565 to compile: Generating the C++ source for the QtDBus module... sip: /var/tmp/portage/dev-python/PyQt4-4.9_pre20111201/work/PyQt-x11-gpl-snapshot-4.9-ee8b9c7eb565-2.7/sip/QtDBus/qdbusextratypes.sip:95: A class, exception, namespace or mapped type has already been defined with the same name Error: Unable to create the C++ code. This might have been due to a build problem. Try downloading the snapshot again (even though it has the same name). Phil After downloading again a lot of different errors, just the first few: x86_64-pc-linux-gnu-g++ -c -march=core2 -msse4.1 -ftree-vectorize -O2 -pipe -fPIC -Wall -W -D_REENTRANT -DNDEBUG -DSIP_PROTECTED_IS_PUBLIC -Dprotected=public -DQT_NO_DEBUG -DQT_CORE_LIB -I. -I/var/tmp/portage/dev-python/PyQt4-4.9_pre20111201/work/PyQt-x11-gpl-snapshot-4.9-ee8b9c7eb565-2.7/qpy/QtDBus -I/usr/include/python2.7 -I/usr/mkspecs/linux-g++ -I/usr/include/qt4/QtDBus -I/usr/include/qt4/QtCore -I/usr/include/qt4 -o sipQtDBusQDBusObjectPath.o sipQtDBusQDBusObjectPath.cpp /var/tmp/portage/dev-python/PyQt4-4.9_pre20111201/work/PyQt-x11-gpl-snapshot-4.9-ee8b9c7eb565-2.7/QtDBus/sipQtDBusQDBusVariant.cpp: In function ‘PyObject* meth_QDBusVariant_variant(PyObject*, PyObject*)’: /var/tmp/portage/dev-python/PyQt4-4.9_pre20111201/work/PyQt-x11-gpl-snapshot-4.9-ee8b9c7eb565-2.7/QtDBus/sipQtDBusQDBusVariant.cpp:45:15: error: ‘QDBusVariant’ does not name a type /var/tmp/portage/dev-python/PyQt4-4.9_pre20111201/work/PyQt-x11-gpl-snapshot-4.9-ee8b9c7eb565-2.7/QtDBus/sipQtDBusQDBusVariant.cpp:47:87: error: ‘sipCpp’ was not declared in this scope /var/tmp/portage/dev-python/PyQt4-4.9_pre20111201/work/PyQt-x11-gpl-snapshot-4.9-ee8b9c7eb565-2.7/QtDBus/sipQtDBusQDBusVariant.cpp: In function ‘PyObject* meth_QDBusVariant_setVariant(PyObject*, PyObject*)’: ... This is with sip-4.13.1-snapshot-98421b9cc511. Chris ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] QtDBus: Unable to convert Array of Object Paths
On 30/11/11 16:37, Phil Thompson wrote:
On Sun, 27 Nov 2011 12:58:27 +, Chris Mayo
cjm...@users.sourceforge.net wrote:
On 27/11/11 12:51, Phil Thompson wrote:
On Sun, 27 Nov 2011 12:47:09 +, Chris Mayo
cjm...@users.sourceforge.net wrote:
With PyQt-x11-gpl-snapshot-4.9-e8284ed41e49,
sip-4.13.1-snapshot-3b44dc2f0efd and:
bus = QtDBus.QDBusConnection.systemBus()
iface = QtDBus.QDBusInterface('org.freedesktop.UDisks',
'/org/freedesktop/UDisks', 'org.freedesktop.UDisks', bus)
print(iface.call('EnumerateDeviceFiles').arguments())
print(iface.call('EnumerateDevices').arguments())
the end of the output is:
:00:1f.2-scsi-5:0:0:0-part2', '/dev/fd0']]
Traceback (most recent call last):
File ./objectpath.py, line 10, inmodule
print(iface.call('EnumerateDevices').arguments())
TypeError: unable to convert a C++ 'QDBusArgument' instance to a
Python
object
EnumerateDeviceFiles returns an Array of Strings, but EnumerateDevices
returns an Array of Object Paths
http://hal.freedesktop.org/docs/udisks/UDisks.html#UDisks.EnumerateDevices
Python 3.2.2, Qt 4.7.4, udisks 1.0.4, dbus 1.4.16 on amd64 Linux
Can you send me a complete test case?
Thanks,
Phil
That was it! Nearly anyway, in full:
#!/usr/bin/python
from PyQt4 import QtDBus
bus = QtDBus.QDBusConnection.systemBus()
iface = QtDBus.QDBusInterface('org.freedesktop.UDisks',
'/org/freedesktop/UDisks', 'org.freedesktop.UDisks', bus)
print(iface.call('EnumerateDeviceFiles').arguments())
print(iface.call('EnumerateDevices').arguments())
Tonight's snapshot will fix this. However there needs to be some
discussion about the best way to (de)marshall arguments.
Can't get ee8b9c7eb565 to compile:
Generating the C++ source for the QtDBus module...
sip:
/var/tmp/portage/dev-python/PyQt4-4.9_pre20111201/work/PyQt-x11-gpl-snapshot-4.9-ee8b9c7eb565-2.7/sip/QtDBus/qdbusextratypes.sip:95:
A class, exception, namespace or mapped type has already been defined
with the same name
Error: Unable to create the C++ code.
I propose that marshalling of composite types uses QDBusArgument (as you
do in C++). However I propose that demarshalling is done automatically,
because...
1. It is Pythonic.
2. The QDBusArgument API will need changing in Python if it is to support
both marshalling and demarshalling.
There remains a question of how far to demarshall automatically. At the
moment your example will return a Python list of QDBusObjectPath instances.
As QDBusObjectPath is just a thin wrapper around QString should this be
removed and just the string returned? The same would apply to
QDBusSignature and QDBusVariant. Is it important to be able to distinguish
between a return value that is a simple string and one that is an object
path?
I'm no dbus expert but certainly I would use the QDBusObjectPath
instances just as plain strings. Looks like the only advantage is when
creating QDBusObjectPath it will do some checking for you.
As far as marshalling with QDBusArgument is concerned, I'm inclined to
ignore the shift operators and to implement explicit writeInt32(),
writeUInt32() etc methods - as happens with QDataStream.
Bit beyond me. N.B. if you're not following it there has been some
activity on
https://bugs.freedesktop.org/show_bug.cgi?id=26420
still a bit of a long shot in terms of dbus-python being resurrected for
Python 3 maybe but some discussion on types.
Thoughts?
Phil
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[PyQt] QtDBus: Unable to convert Array of Object Paths
With PyQt-x11-gpl-snapshot-4.9-e8284ed41e49,
sip-4.13.1-snapshot-3b44dc2f0efd and:
bus = QtDBus.QDBusConnection.systemBus()
iface = QtDBus.QDBusInterface('org.freedesktop.UDisks',
'/org/freedesktop/UDisks', 'org.freedesktop.UDisks', bus)
print(iface.call('EnumerateDeviceFiles').arguments())
print(iface.call('EnumerateDevices').arguments())
the end of the output is:
:00:1f.2-scsi-5:0:0:0-part2', '/dev/fd0']]
Traceback (most recent call last):
File ./objectpath.py, line 10, in module
print(iface.call('EnumerateDevices').arguments())
TypeError: unable to convert a C++ 'QDBusArgument' instance to a Python
object
EnumerateDeviceFiles returns an Array of Strings, but EnumerateDevices
returns an Array of Object Paths
http://hal.freedesktop.org/docs/udisks/UDisks.html#UDisks.EnumerateDevices
Python 3.2.2, Qt 4.7.4, udisks 1.0.4, dbus 1.4.16 on amd64 Linux
Chris
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Re: [PyQt] QtDBus: Unable to convert Array of Object Paths
On 27/11/11 12:51, Phil Thompson wrote:
On Sun, 27 Nov 2011 12:47:09 +, Chris Mayo
cjm...@users.sourceforge.net wrote:
With PyQt-x11-gpl-snapshot-4.9-e8284ed41e49,
sip-4.13.1-snapshot-3b44dc2f0efd and:
bus = QtDBus.QDBusConnection.systemBus()
iface = QtDBus.QDBusInterface('org.freedesktop.UDisks',
'/org/freedesktop/UDisks', 'org.freedesktop.UDisks', bus)
print(iface.call('EnumerateDeviceFiles').arguments())
print(iface.call('EnumerateDevices').arguments())
the end of the output is:
:00:1f.2-scsi-5:0:0:0-part2', '/dev/fd0']]
Traceback (most recent call last):
File ./objectpath.py, line 10, inmodule
print(iface.call('EnumerateDevices').arguments())
TypeError: unable to convert a C++ 'QDBusArgument' instance to a Python
object
EnumerateDeviceFiles returns an Array of Strings, but EnumerateDevices
returns an Array of Object Paths
http://hal.freedesktop.org/docs/udisks/UDisks.html#UDisks.EnumerateDevices
Python 3.2.2, Qt 4.7.4, udisks 1.0.4, dbus 1.4.16 on amd64 Linux
Can you send me a complete test case?
Thanks,
Phil
That was it! Nearly anyway, in full:
#!/usr/bin/python
from PyQt4 import QtDBus
bus = QtDBus.QDBusConnection.systemBus()
iface = QtDBus.QDBusInterface('org.freedesktop.UDisks',
'/org/freedesktop/UDisks', 'org.freedesktop.UDisks', bus)
print(iface.call('EnumerateDeviceFiles').arguments())
print(iface.call('EnumerateDevices').arguments())
Chris
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Re: [PyQt] QSqlTableModel.submitAll() problems with milliseconds and PostgreSQL time field
Chris Mayo wrote:
If I create a PostgreSQL database 'test' and execute the following:
CREATE TABLE timetest ( t time );
INSERT INTO timetest VALUES ('0:0:0');
The output is:
00:00:00.000
00:12:34.500
00:12:34.000
The database doesn't get the 500 milliseconds.
Even worse if I execute on the database:
UPDATE timetest SET t = '0:11:22.33';
and then run the Python above I get:
00:11:22.330
00:12:34.500
00:11:22.330
the value from the model doesn't make it into the database at all if the
time field already has milliseconds.
I have hacked some C++ together and still get the same result. So it
looks like a Qt problem and will try Nokia.
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[PyQt] QSqlTableModel.submitAll() problems with milliseconds and PostgreSQL time field
If I create a PostgreSQL database 'test' and execute the following:
CREATE TABLE timetest ( t time );
INSERT INTO timetest VALUES ('0:0:0');
run the following Python:
from PyQt4.QtCore import *
from PyQt4.QtSql import *
db = QSqlDatabase.addDatabase(QPSQL)
db.setHostName(localhost)
db.setDatabaseName(test)
db.setUserName(postgres)
db.open()
timetestModel = QSqlTableModel()
timetestModel.setEditStrategy(QSqlTableModel.OnManualSubmit)
timetestModel.setTable(timetest)
timetestModel.select()
print \
timetestModel.record(0).field(t).value().toTime().toString(HH:mm:ss.zzz)
a = QTime(0,12,34,500)
timetestModel.setData(timetestModel.index(0,
timetestModel.fieldIndex(t)), a)
print \
timetestModel.record(0).field(t).value().toTime().toString(HH:mm:ss.zzz)
if not timetestModel.submitAll():
raise Exception, timetestModel.lastError().text()
print \
timetestModel.record(0).field(t).value().toTime().toString(HH:mm:ss.zzz)
The output is:
00:00:00.000
00:12:34.500
00:12:34.000
The database doesn't get the 500 milliseconds.
Even worse if I execute on the database:
UPDATE timetest SET t = '0:11:22.33';
and then run the Python above I get:
00:11:22.330
00:12:34.500
00:11:22.330
the value from the model doesn't make it into the database at all if the
time field already has milliseconds.
Any thoughts?
Chris
Linux amd64, Qt 4.5.2, PyQt4 4.5.4, Sip 4.8.2, PostgreSQL 8.3.7
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