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The kernel 'base (Python 3.9.7)' died when using PyQt5

I am using Jupyter Notebook on Vscode and I'm new to PyQt5. When I run these lines of code, I got this Error message
I tried restarting the kernel and it only works once each time it but doesn't display the widget fully either. Here's a screenshot of the output
PS, I am using Anaconda 3 and Python 3 on Windows 10 16 GB RAM 64 bit
And here's my code:
import sys
from PyQt5.uic import loadUi
from PyQt5 import QtWidgets
from PyQt5.QtWidgets import QDialog, QWidget, QApplication, QLineEdit, QTableWidget, QStackedWidget
from PyQt5.QtCore import *
class welcomescreen(QDialog):
def __init__(self):
super(welcomescreen,self).__init__()
loadUi("welcome.ui", self)
# main
app = QApplication(sys.argv)
if app is None:
app = QtWidgets.QApplication(sys.argv)
acceuil=welcomescreen() #object from the class above
widget=QStackedWidget()
widget.addWidget(acceuil)
widget.setFixedHeight(850)
widget.setFixedWidth(1200)
widget.show()
try:
sys.exit(app.exec_())
except:
print("Exiting")

How to embed Tensorboard to Gui app in PyQt5

I tried to embed TensorBoard to my GUI app with PyQt5, but I got always the same issue: the app won't display the SVG graphs it; shows only the HTML.
I want to know if there is a module or function in PyQt5 that can show SVG images in webpage using their URL(s).
import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtWebEngineWidgets import QWebEngineView
from PyQt5.QtWidgets import QApplication, QWidget, QMainWindow
app = QApplication(sys.argv)
web = QWebEngineView()
web.load(QUrl("https://tensorboard.dev/experiment/EDZb7XgKSBKo6Gznh3i8hg/#scalars"))
web.show()
sys.exit(app.exec_())

Qt module alternative for PyQt6

I'm just migrating my application from PyQt5 to PyQt6. I understand that the Qt module has been removed in Qt6. I have stuff like 'Qt.AlignCenter', 'Qt.ToolButtonTextUnderIcon', 'Qt.LeftToolBarArea', which are no longer working. Is there any alternative for this functionality in Qt6?

The Qt module only exists in PyQt5 (not in Qt5) that allowed access to any class or element of any submodule, for example:
$ python
>>> from PyQt5 import Qt
>>> from PyQt5 import QtWidgets
>>> assert Qt.QWidget == QtWidgets.QWidget
That module is different from the Qt namespace that belongs to the QtCore module, so if you want to access Qt.AlignCenter then you must import Qt from QtCore:
import sys
from PyQt6.QtCore import Qt
from PyQt6.QtWidgets import QApplication, QLabel
def main():
app = QApplication(sys.argv)
w = QLabel()
w.resize(640, 498)
w.setAlignment(Qt.Alignment.AlignCenter)
w.setText("Qt is awesome!!!")
w.show()
app.exec()
if __name__ == "__main__":
main()
from PyQt6.QtCore import Qt
from PyQt6.QtGui import QIcon
from PyQt6.QtWidgets import QApplication, QMainWindow, QStyle, QToolBar
def main():
import sys
app = QApplication(sys.argv)
toolbar = QToolBar()
toolbar.setToolButtonStyle(Qt.ToolButtonStyle.ToolButtonTextUnderIcon)
icon = app.style().standardIcon(QStyle.StandardPixmap.SP_DesktopIcon)
toolbar.addAction(icon, "desktop")
w = QMainWindow()
w.addToolBar(Qt.ToolBarAreas.LeftToolBarArea, toolbar)
w.show()
sys.exit(app.exec())
if __name__ == "__main__":
main()

Currently, the AlignCenter and others can be found under AlignmentFlag enum:
from PyQt6.QtCore import Qt
from PyQt6.QtWidgets import QPushButton, QVBoxLayout
def create_widget():
layout = QVBoxLayout()
button = QPushButton('Cancel')
layout.setAlignment(Qt.AlignmentFlag.AlignCenter)
layout.addWidget(button)

make a layout widget to be floating ouside of mainwindow pyqt5

everyone.
I want to float a widget inside a layout of a main-window.
the widget is disappered from layout but not displayed on screen
As you can see from following code. I floated two labels 'lbl_title' and 'lbl_icon'
they seems to be floated but not displayed on screen.
Here comes my code.
If you loose commented line, then the lbl_icon and title is removed from layout but not are shown on my screen
from PyQt5.QtCore import QDir, Qt, QUrl
from PyQt5.QtMultimedia import QMediaContent, QMediaPlayer
from PyQt5.QtMultimediaWidgets import QVideoWidget
from PyQt5.QtWidgets import (QApplication, QFileDialog, QHBoxLayout, QLabel,
QPushButton, QSizePolicy, QSlider, QStyle, QVBoxLayout, QWidget)
from PyQt5.QtWidgets import QMainWindow,QWidget, QPushButton, QAction,QGridLayout
from PyQt5.QtGui import QIcon,QPixmap
import sys
from PyQt5.QtCore import *
class CommonLessonItem(QWidget):
def __init__(self,parent):
super(CommonLessonItem,self).__init__(parent)
self.lbl_title = QLabel(self)
self.lbl_description = QLabel(self)
self.lbl_icon = QLabel(self)
self.__initUI()
self.isChild = False
def __initUI(self):
#set layout
self.layout = QGridLayout(self)
self.layout.addWidget(self.lbl_title,0,0,1,19)
self.layout.addWidget(self.lbl_icon,0,19,1,1)
self.layout.addWidget(self.lbl_description,1,0,1,20)
self.lbl_icon.setWindowFlags(Qt.FramelessWindowHint|Qt.Window)
self.lbl_icon.move(100,100)
self.lbl_title.setWindowFlags(Qt.FramelessWindowHint|Qt.Window)
self.lbl_title.move(100,100)
#initialize info
self.setInfo("Title","Description",None)
self.setLayout(self.layout)
def setInfo(self,title,description,iconPath):
self.lbl_title.setText(title)
self.lbl_description.setText(description)
if(iconPath is not None):
self.lbl_icon.setPixmap(QPixmap(iconPath))
def moveEvent(self,event):
super().moveEvent(event)
if __name__ == "__main__":
app = QApplication(sys.argv)
mw = CommonLessonItem(None)
# mw.setSize(10,200)
mw.show()
sys.exit(app.exec_())
I need your help.

Whenever a widget becomes a top level window by setting the parent to None or, like in your case, setting the Window flag (but I wouldn't suggest that approach) show() must be called.
As explained in windowFlags:
Note: This function calls setParent() when changing the flags for a window, causing the widget to be hidden. You must call show() to make the widget visible again..
Add self.lbl_icon.show() and self.lbl_title.show() after changing their window state.

PyQt5 5.9 , setWindowIcon( QIcon(*WEB_LINK*) )

Hi, I have an issue with my PyQt5 setWindowIcon.
When I try to set my window icon from a local image, it works perfectly. But when I try to put a online link like:
setWindowIcon( QIcon("https://www.google.ge/images/branding/product/ico/googleg_lodp.ico") )
it does not work. What to do? Its 32x32 ico btw.
~Thanks

You have to use QNetworkAccessManager and manually download image from url. Then read bytes from response, create a QPixmap (beacuse it has loadFromData method) and initialize a QIcon from QPixmap.
And after that you will be able to set window icon.
import sys
from PyQt5.QtCore import QUrl
from PyQt5.QtGui import QIcon, QPixmap
from PyQt5.QtNetwork import QNetworkAccessManager, QNetworkRequest
from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QVBoxLayout
ICON_IMAGE_URL = "https://www.google.ge/images/branding/product/ico/googleg_lodp.ico"
class MainWindow(QWidget):
def __init__(self):
QWidget.__init__(self)
self.label = QLabel('Image loading demo')
self.vertical_layout = QVBoxLayout()
self.vertical_layout.addWidget(self.label)
self.setLayout(self.vertical_layout)
self.nam = QNetworkAccessManager()
self.nam.finished.connect(self.set_window_icon_from_response)
self.nam.get(QNetworkRequest(QUrl(ICON_IMAGE_URL)))
def set_window_icon_from_response(self, http_response):
pixmap = QPixmap()
pixmap.loadFromData(http_response.readAll())
icon = QIcon(pixmap)
self.setWindowIcon(icon)
if __name__ == '__main__':
app = QApplication(sys.argv)
window = MainWindow()
window.show()
sys.exit(app.exec_())