Upgrading Qt5 to version 5.6.2 throws error

Question

I recently updated my ubuntu system and Qt5 library was updated to version 5.6.2 I had an existing ui file which was being used in my python file as :

class Window(QtWidgets.QMainWindow):
    def __init__(self):
        super(Window,self).__init__()
        print("into init")
        uic.loadUi('main.ui',self)
        print("loaded main.ui")
        self.pushButton_2.clicked.connect(lambda: self.reset())
        self.pushButton.clicked.connect(lambda: self.submit())      
        self.pushButton_3.clicked.connect(self.close)

But now uic.loadUi('main.ui',self) gives a segmentation fault.

I tried opening the ui file in designer and it opened with the following error

 Error while reparenting!
Designer: A class name mismatch occurred when creating a widget using the custom widget factory registered for widgets of class KDialog. It returned a widget of class QDialog.
QMetaProperty::read: Unable to handle unregistered datatype 'SelectionBehavior' for property 'QTabBar::selectionBehaviorOnRemove'
appmenu-qt: registerWindow 206 "&File"
appmenu-qt: registerWindow 206 "&Edit"
appmenu-qt: registerWindow 206 "F&orm"
appmenu-qt: registerWindow 206 "&View"
appmenu-qt: registerWindow 206 "&Settings"
appmenu-qt: registerWindow 206 "&Window"
appmenu-qt: registerWindow 206 "&Help"

NOTE : the ui file does open as it is supposed to but I am not able to load it from my python function and get a Segmentation Fault

@eyllanesc i did a apt-get update. any other specific thing i should do ? — fireball.1, Jun 09 '18 at 17:40
How have you installed PyQt5? Have you used apt-get for it or have you used pip ?, gives more detail, I also recommend reinstalling PyQt5, and if the problem persists report it as a bug to ubuntu. — eyllanesc, Jun 09 '18 at 17:44
On the other hand `sudo apt-get update` does not modify any package, it only updates the list of repositories so you should not have problems, another thing is `sudo apt-get upgrade` that does update the packages. — eyllanesc, Jun 09 '18 at 17:45
`sudo pip3 install pyqt5 --upgrade` returns Requirements already up-to-date — fireball.1, Jun 09 '18 at 18:00
remove it and reinstall it. Another option is to remove your PyQt5 and install it from the ubuntu repositories: `sudo apt-get install python-pyqt5` — eyllanesc, Jun 09 '18 at 18:02
`python-pyqt5 is already the newest version (5.5.1+dfsg-3ubuntu4). python-pyqt5 set to manually installed.` — fireball.1, Jun 09 '18 at 18:07
Use `sudo pip3 uninstall pyqt5 && sudo apt-get install python3-pyqt5` — eyllanesc, Jun 09 '18 at 18:17
@eyllanesc now my script doesn't execute at all and gives a segmentation fault. Perhaps in the `from PyQt5 import QtCore,QtGui,QtWidgets,uic` — fireball.1, Jun 09 '18 at 18:28

Upgrading Qt5 to version 5.6.2 throws error

0 Answers0