CODEWITHSUNDEEP
pythonpyqtpyqt5qtquickcontrolsqtquickcontrols2
Heinzi
Heinzi

Reputation: 6093

QtQuickControls 2.0 with PyQt5

I setup a virtualenv and installed pyqt5 (PyQt5-5.7-cp35-cp35m-manylinux1_x86_64.whl):

virtualenv -p /usr/bin/python3.5 .
source bin/activate
pip install pyqt5

I created a basic.qml file:

import QtQuick 2.7
import QtQuick.Controls 2.0

Rectangle {
    width: 300
    height: 100
    color: "red"
}

and tried to load it in my python code with:

import sys
from PyQt5.QtCore import QUrl
from PyQt5.QtWidgets import QApplication
from PyQt5.QtQuick import QQuickView

if __name__ == '__main__':
    myApp = QApplication(sys.argv)

    view = QQuickView()
    view.setSource(QUrl('basic.qml'))
    view.show()

    sys.exit(myApp.exec_())

It fails with

file:///[...]/main.qml:2:1: plugin cannot be loaded for module "QtQuick.Controls": Cannot load library /[virtualenv]/lib/python3.5/site-packages/PyQt5/Qt/qml/QtQuick/Controls.2/libqtquickcontrols2plugin.so: (libQt5QuickTemplates2.so.5: Can't open shared object file: File or directory not found) 
     import QtQuick.Controls 2.0 
     ^

Process finished with exit code 0

I checked. This file it complains about actually doesn't exist. But how can I install it? Does PyQt5 support QtQuickControls2 at all?

If I switch the import in basic.qml from import QtQuick.Controls 2.0 to import QtQuick.Controls 1.2, it works. But I want to use the new controls.

Upvotes: 1

Views: 2741

Answers (1)

jpnurmi
jpnurmi

Reputation: 5836

This looks like a bug in PyQt5. The package is missing both libQt5QuickTemplates2.so and libQt5QuickControls2.so.

Hoping that the Qt 5.7 build contained by the PyQt 5.7 package and the official Qt 5.7 build available at qt.io are built in a fully binary compatible way, one possibility could be to download and install Qt 5.7 from qt.io, and copy the missing libraries into your virtualenv. For example:

$ cp ~/Qt/5.7/gcc_64/lib/libQt5QuickTemplates2.* path/to/lib/python3.5/site-packages/PyQt5/Qt/lib
$ cp ~/Qt/5.7/gcc_64/lib/libQt5QuickControls2.* path/to/lib/python3.5/site-packages/PyQt5/Qt/lib

Upvotes: 1

Related Questions