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[PyQt] error message - Printable Version

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error message - the_wolf_dz - Oct-23-2022

hi everybody
I have created an GUI with the QT designer and when i integrate it in the python IDE ( Pycharm or Visuel Studio)
I encounter the following error message " RuntimeError: You can't initialize an object twice!" and I can't understand what's the problem
please help me
the source code :
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.uic import loadUiType
from Custom_Widgets.Widgets import *
from PySide2.QtWidgets import *
import os
import sys
MainUi,_ =loadUiType('interface.ui')

class Main(QMainWindow, MainUi):
    def __init__(self,parent=None):
        super(Main, self).__init__(parent)
        QMainWindow.__init__(self)
        self.setupUi(self)
        loadJsonStyle(self, self.ui)

def main ():
    app=QApplication(sys.argv)
    window= Main()
    window.show()
    app.exec_()

if __name__ == "__main__":
    main()


RE: error message - Yoriz - Oct-23-2022

Why do you have PyQt5 and PySide2 imports of QtWidgets?
from PyQt5.QtGui import *
from PyQt5.QtWidgets import * # QtWidget is imported from PyQt5
from PyQt5.QtCore import *
from PyQt5.uic import loadUiType
from Custom_Widgets.Widgets import *
from PySide2.QtWidgets import * # QtWidget is imported from PySide2


RE: error message - the_wolf_dz - Oct-24-2022

(Oct-23-2022, 10:25 AM)Yoriz Wrote: Why do you have PyQt5 and PySide2 imports of QtWidgets?
from PyQt5.QtGui import *
from PyQt5.QtWidgets import * # QtWidget is imported from PyQt5
from PyQt5.QtCore import *
from PyQt5.uic import loadUiType
from Custom_Widgets.Widgets import *
from PySide2.QtWidgets import * # QtWidget is imported from PySide2
we have loadJsonStyle(self, self.ui)

RE: error message - the_wolf_dz - Oct-24-2022

hi
I have deleted the line 
from PySide2.QtWidgets import *
and add the line 
import json
and changed the line 
loadJsonStyle(self, self.ui)
with the line 
json.load('style.json')
but i have the error message 
Error:
 return loads(fp.read(),
AttributeError: 'str' object has no attribute 'read'


RE: error message - deanhystad - Oct-24-2022

json.load() expects a file pointer, not a file name.

https://docs.python.org/3/library/json.html

Not that it matters. You don't want to load a json file, you want to load a json file and apply the style object it creates. You really want to use loadJsonStyle() which is imported by:
from Custom_Widgets.Widgets import *
I was looking at the custom widgets project on pypl. All the examples I looked at use PySide2. Widgets.py and WidgetsWorker.py reference PySide2 or PySide6. I don't think you can use PyQt5. PyQt5 and PySide6 are very similar, so you can probably "port" this to Qt5, but if you are just starting out I suggest using PySide6.