qt - Pyqt5 & QML2 deploy on debian/mint (dev - ubuntu) -

i have pyqt5 application uses qml2 frontend. while migrating developer's (my) machine (mint qiana, debian sid) stucks on importing qtquick.dialogs 1.1.

error can reproduced on fresh docker containers running debian-sid image.

my test python script:

from pyqt5 import qtwidgets, qtwidgets, qtcore, uic pyqt5.qtcore import pyqtproperty, qcoreapplication, qobject, qurl pyqt5.qtqml import qmlregistertype, qqmlcomponent, qqmlengine   class commonqmlwindow():      def __init__(self, qml_file_name):         self._engine = qqmlengine()         component = qqmlcomponent(self._engine)          # stuck here (line below - component.loadurl)         component.loadurl(qurl(qml_file_name))         self.qml_window = component.create()          if self.qml_window none:             error in component.errors():                 print(error.tostring())              exit(1)  ui import commonqmlwindow 

loading:

from pyqt5 import qtwidgets, qtwidgets, qtcore, uic pyqt5.qtcore import pyqtproperty, qcoreapplication, qobject, qurl pyqt5.qtqml import qmlregistertype, qqmlcomponent, qqmlengine   class mainwindow(commonqmlwindow.commonqmlwindow):     def __init__(self, parent=none):          commonqmlwindow.commonqmlwindow.__init__(self, 'ui/test.qml') 

qml file:

import qtquick 2.0 import qtquick.dialogs 1.1 import qtgraphicaleffects 1.0 import qtquick.controls 1.1 import qtquick.controls.styles 1.2  import "." controls import "../uihelpers.js" uihelpers   textfield {     id: rootitem      property bool pickdirectory: false     property alias pickertitle: picker.title     property alias pickerselectmask: picker.namefilters     property alias selectedurl: picker.fileurl       readonly: true      filedialog {         id: picker          selectfolder: rootitem.pickdirectory ? true : false     } } 

main.py:

app = qtwidgets.qapplication(sys.argv) main_window = mainwindow.mainwindow() app.exec() 

all packages installed (for qml2, python3, pyqt5 , qt5) works this.

this behavior happens on linux mint qiana, debian sid. when comment import statment (//import qtquick.dialogs 1.1) works need filedialog..

versions:

qt version: 5.3.2

pyqt version: 5.3.2

python version: 3.4.2

upd: works on mac os x yosemite not on debian.

here no known reason of behavior @ moment. i've created bugreport , found kinda workaround-solution of problem. problem can avoided using qqmlapplicationengine instead of qqmlengine create qml components. seems qqmlengine buggy because these 2 classes same work.

from pyqt5 import qtqml engine = qtqml.qqmlapplicationengine() engine.load(qtcore.qurl('test.qml')) sys.exit(app.exec()) 

also i've done attempts reproduce error c++ code seems behavior bad of pyqt5's implementation because works fine c++ backend.

unfortunately can't see bug-tracker of pyqt project may unfixed long time unless developers see answer.