Re: [Qgis-user] qgis python plugins / bindings on windows
Richard, Using 0.9 trunk and QT4.2 on Linux and Win I don't seem to have the same issues that you are. I am building everything myself and here is the output: import PyQt4.QtGui (works fine) PyQt4.QtGui.QApplication.aboutQt() (About box appears) print PyQt4.QtGui.QApplication.instance() PyQt4.QtGui.QApplication object at 0xb3dafd6c Can you give some more details on what versions of things you are using (where you got the win binaries) and how they were built... A ++ Aaron Racicot - GIS Programmer 360.221.2441 - [EMAIL PROTECTED] ++ z - p u l l e y pobox 1614 langley wa 98260 www.reprojected.com ++ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Richard Duivenvoorde Sent: Tuesday, August 21, 2007 1:57 AM To: Martin Dobias Cc: [EMAIL PROTECTED] Subject: Re: [Qgis-user] qgis python plugins / bindings on windows It seems to me that there is no QApplication constructed/available yet? Python console in qgis is working: import PyQt4.QtGui PyQt4.QtGui.QApplication.beep() print iface qgis.gui.QgisInterface object at 0x0495E660 works, but calling PyQt4.QtGui.QApplication.aboutQt() makes qgis crash with message: QWidget: Must construct a QApplication before a QPaintDevice aksing for the instancepointer: print PyQt4.QtGui.QApplication.instance() None Who/What is responsible for constructing/initialising QApplication? Can there be a (configuration) reason that it's not there (yet)? TIA Richard Duivenvoorde ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user
Re: [Qgis-user] qgis python plugins / bindings on windows
Hi Aaron, I'm using a plain vanilla python 2.5 (Python 2.5 (r25:51908, Sep 19 2006, 09:52:17)) msi-install (in c:\Program Files\, could that be a problem?) I installed the binary QT4 (PyQt-Py2.5-gpl-4.3.0-b1.exe) from: http://www.riverbankcomputing.co.uk/pyqt/download.php And a qgis preview build qgis_setup0.9.0preview1.16.08.2007.exe from ... some link of the list I've also tried a build from Martin from the list http://www.mapserver.sk/~wonder/qgis/qgis-trunk-070619-grass.zip All with the same errors. What are the qgis- python- qt- related environment variables you have? And exactly what PATH-constructs do you use? From the thread about the QgsApplication.setPrefixPath() there are some incompatible lib/version issues? I hope this can be worked out/documented later. I will try a clean install later, or I've got a debian work station too, maby I've to switch to that and use stuff from: http://debian.gfoss.it Another option is building stuff myself, like you propose, do you think that's doable for a lightweight script person :-) Thanks, Richard Duivenvoorde Richard Duivenvoorde wrote: It seems to me that there is no QApplication constructed/available yet? Python console in qgis is working: import PyQt4.QtGui PyQt4.QtGui.QApplication.beep() print iface qgis.gui.QgisInterface object at 0x0495E660 works, but calling PyQt4.QtGui.QApplication.aboutQt() makes qgis crash with message: QWidget: Must construct a QApplication before a QPaintDevice aksing for the instancepointer: print PyQt4.QtGui.QApplication.instance() None Who/What is responsible for constructing/initialising QApplication? Can there be a (configuration) reason that it's not there (yet)? TIA Richard Duivenvoorde Richard Duivenvoorde wrote: I've installed the binary PyQt. And it seems that qgis is accepting this. One note: you have to install Python/PyQt BEFORE installing qgis (off course, but I didn't, gqis starts complaining then that 'couldn't load qgis bindings' :-0 ). First I donwloaded your to python ported 'copyright plugin' from http://blog.qgis.org/?q=node/59 I can see it in the 'Plugin Manager' as 'CopyrightLabel' and it's library name: 'python:copyright_plugin'. But tring to enable it by clicking the checkbox and clicking OK crashes qgis with the following message in the commandbox: QPixmap: Must construct a QApplication before a QPaintDevice ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user
[Qgis-user] qgis python plugins / bindings on windows
Hi List, after reading the python plugin wiki pages I became excited and wanted to try to build my first python plugin (using the 0.9.0 preview binary on windows). And failed because of some complexities (for me :-( ) I downloaded SIP and PyQt4.3, but failed to install them because I don't have '(c)make' installed etc etc. Because SIP and PyQT are not fully installed (python configure ok, but make not possible...), Qgis gives a warning about not being able to use the python bindings. My questions (hopefully this will be a quickstart the for all c-noobs like me): - will you need a c-build environment (including make) to make python plugins? Now or after the 'real' 0.9 release? - or is (will be) there another way to start hacking python plugins (eg. some huge qgis install including sip, python and pyqt or so??). - if c-make etc is needed, what is the easiest way to start on windows: mingw, eclipse, visual studio, cygwin? - how 'portable' will a python plugin be? If I develop a plugin on my debian box, can this plugin be used on 'vanilla qgis install' on windows also then (given the user installed python)? I fear that I underestemated the python story, but will try anyway. There are so much nice free arcview3 scripts available to 'port' to qgis, and python seems a ideal language for this. TIA Richard Duivenvoorde ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user
Re: [Qgis-user] qgis python plugins / bindings on windows
On 8/20/07, Richard Duivenvoorde [EMAIL PROTECTED] wrote: My questions (hopefully this will be a quickstart the for all c-noobs like me): - will you need a c-build environment (including make) to make python plugins? Now or after the 'real' 0.9 release? Hi Richard! When using binaries (i.e. you don't build qgis by yourself), you can avoid installation of the build environment. On PyQt download page, there's a binary package for windows with all stuff that you might need: http://www.riverbankcomputing.co.uk/pyqt/download.php So, in your case you would need to install only Python 2.5 and PyQt binary package. QGIS python bindings then should load correctly. I'll add a note about this on wiki... - or is (will be) there another way to start hacking python plugins (eg. some huge qgis install including sip, python and pyqt or so??). I hope this question is answered with the answer above. - if c-make etc is needed, what is the easiest way to start on windows: mingw, eclipse, visual studio, cygwin? MinGW is the best option here (and also only one officially supported) - cygwin or msvc might or might not work for you. Btw. Eclipse doesn't include a compiler by itself, but it can handle mingw and cygwin. - how 'portable' will a python plugin be? If I develop a plugin on my debian box, can this plugin be used on 'vanilla qgis install' on windows also then (given the user installed python)? If you won't use any OS-dependent python modules, it will be portable - everything will just work :) I fear that I underestemated the python story, but will try anyway. There are so much nice free arcview3 scripts available to 'port' to qgis, and python seems a ideal language for this. I hope that getting python bindings to work won't be a headache. If you encounter any problems, don't hesitate to contact us. Regards Martin ___ Qgis-user mailing list Qgis-user@lists.qgis.org http://lists.qgis.org/cgi-bin/mailman/listinfo/qgis-user
Re: [Qgis-user] qgis python plugins / bindings on windows
Hi Martin, Ok thanks, I'm running now. I've installed the binary PyQt. And it seems that qgis is accepting this. One note: you have to install Python/PyQt BEFORE installing qgis (off course, but I didn't, gqis starts complaining then that 'couldn't load qgis bindings' :-0 ). First I donwloaded your to python ported 'copyright plugin' from http://blog.qgis.org/?q=node/59 I can see it in the 'Plugin Manager' as 'CopyrightLabel' and it's library name: 'python:copyright_plugin'. But tring to enable it by clicking the checkbox and clicking OK crashes qgis with the following message in the commandbox: QPixmap: Must construct a QApplication before a QPaintDevice I thought it had something to do with the collision of the other copyrightlabel plugin, so thought to try out the 'minimal python plugin' from: http://wiki.qgis.org/qgiswiki/DevelopingPluginsWithPython first. using the ../qgis/python/plugins/testplug as building dir I'm able to build everything like you describe in the wiki, but trying to load it makes my qgis(preview) crash with the same error: C:\programs\QGIS090previewqgis Loaded C:/programs/QGIS090preview/plugins/libcopyrightlabelplugin.dll Loaded C:/programs/QGIS090preview/plugins/libdelimitedtextplugin.dll Loaded C:/programs/QGIS090preview/plugins/libdelimitedtextprovider.dll Loaded C:/programs/QGIS090preview/plugins/libgeorefplugin.dll Loaded C:/programs/QGIS090preview/plugins/libgpsimporterplugin.dll Loaded C:/programs/QGIS090preview/plugins/libgrassplugin.dll Loaded C:/programs/QGIS090preview/plugins/libgrassprovider.dll Loaded C:/programs/QGIS090preview/plugins/libgridmakerplugin.dll Loaded C:/programs/QGIS090preview/plugins/libnortharrowplugin.dll Loaded C:/programs/QGIS090preview/plugins/libogrprovider.dll Loaded C:/programs/QGIS090preview/plugins/libpggeoprocessingplugin.dll Loaded C:/programs/QGIS090preview/plugins/libpostgresprovider.dll Loaded C:/programs/QGIS090preview/plugins/libscalebarplugin.dll Loaded C:/programs/QGIS090preview/plugins/libspitplugin.dll Loaded C:/programs/QGIS090preview/plugins/libwfsplugin.dll Loaded C:/programs/QGIS090preview/plugins/libwmsprovider.dll module 'copyright_plugin' from 'C:/programs/QGIS090preview/python/plugins\copyright_plugin\__init__.pyc' module 'testplug' from 'C:/programs/QGIS090preview/python/plugins\testplug\__init__.pyc' module 'copyright_plugin' from 'C:/programs/QGIS090preview/python/plugins\copyright_plugin\__init__.pyc' module 'testplug' from 'C:/programs/QGIS090preview/python/plugins\testplug\__init__.pyc' module 'copyright_plugin' from 'C:/programs/QGIS090preview/python/plugins\copyright_plugin\__init__.pyc' module 'testplug' from 'C:/programs/QGIS090preview/python/plugins\testplug\__init__.pyc' module 'testplug' from 'C:/programs/QGIS090preview/python/plugins\testplug\__init__.pyc' QPixmap: Must construct a QApplication before a QPaintDevice Am I doing something wrong? Missing resources (I took the icon.xpm from the copyrightplugin to build the resources.py)? Missing environment variables (seems to me nothing is needed?) Grtz Richard Duivenvoorde Martin Dobias wrote: On 8/20/07, Richard Duivenvoorde [EMAIL PROTECTED] wrote: My questions (hopefully this will be a quickstart the for all c-noobs like me): - will you need a c-build environment (including make) to make python plugins? Now or after the 'real' 0.9 release? Hi Richard! When using binaries (i.e. you don't build qgis by yourself), you can avoid installation of the build environment. On PyQt download page, there's a binary package for windows with all stuff that you might need: http://www.riverbankcomputing.co.uk/pyqt/download.php So, in your case you would need to install only Python 2.5 and PyQt binary package. QGIS python bindings then should load correctly. I'll add a note about this on wiki... - or is (will be) there another way to start hacking python plugins (eg. some huge qgis install including sip, python and pyqt or so??). I hope this question is answered with the answer above. - if c-make etc is needed, what is the easiest way to start on windows: mingw, eclipse, visual studio, cygwin? MinGW is the best option here (and also only one officially supported) - cygwin or msvc might or might not work for you. Btw. Eclipse doesn't include a compiler by itself, but it can handle mingw and cygwin. - how 'portable' will a python plugin be? If I develop a plugin on my debian box, can this plugin be used on 'vanilla qgis install' on windows also then (given the user installed python)? If you won't use any OS-dependent python modules, it will be portable - everything will just work :) I fear that I underestemated the python story, but will try anyway. There are so much nice free arcview3 scripts available to 'port' to qgis, and python seems a ideal language for this. I hope that getting python bindings to work won't be a headache. If you encounter any problems,
