Here is my simple code to make a window using pyqt4 , but after running the code gets compiled but not showing any window.
import sys
import time
from PyQt4.QtCore import *
from PyQt4.QtGui import *
app = QApplication(sys.argv)
window = QWidget()
window.show()
If there is some error in the code please correct me .
Related
import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QWebEngineView
app = QApplication(sys.argv)
window = QMainWindow()
view = QWebEngineView()
view.load(QUrl("http://www.google.com"))
window.setCentralWidget(view)
window.show()
sys.exit(app.exec_())
This is exactly the error I get in code like this:
Traceback (most recent call last):
File "C:\Users\eymen\Desktop\qtweb.py", line 2, in <module>
from PyQt5.QtWidgets import QApplication, QMainWindow, QWebEngineView
ImportError: cannot import name 'QWebEngineView' from 'PyQt5.QtWidgets' (C:\Users\eymen\AppData\Local\Programs\Python\Python311\Lib\site-packages\PyQt5\QtWidgets.pyd)
But my pyqt5 version is the most up-to-date and I don't see any errors. I thought it was related to the Python version but I couldn't get an idea. Python version: 3.11.1 alternative libraries do not satisfy my request.
import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QWebEngineView
app = QApplication(sys.argv)
window = QMainWindow()
view = QWebEngineView()
view.load(QUrl("http://www.google.com"))
window.setCentralWidget(view)
window.show()
sys.exit(app.exec_())
I tried this code but when it should show google.com in python window it gave error and said QWebEngineView library not supported
You need to use
from PyQt5.QtWebEngineWidgets import QWebEngineView
Code:
import sys
from PyQt5.QtWidgets import QApplication, QMainWindow
from PyQt5.QtWebEngineWidgets import QWebEngineView
from PyQt5.QtCore import QUrl
app = QApplication(sys.argv)
window = QMainWindow()
view = QWebEngineView()
view.load(QUrl("http://www.google.com"))
window.setCentralWidget(view)
window.show()
sys.exit(app.exec_())
I am trying to show splashscreen before loading the mainwindow but a transparent window is displayed instead of the intended image. The splashscreen is supposed to be displayed after import and instantiation loading of Dashboard, which takes a few seconds, but the image only shows when the splash screen is about to close. Below is my code:
from PyQt5 import QtWidgets
from PyQt5.QtCore import Qt, QThread
from PyQt5.QtGui import QPixmap
from modules.video_opening.map.map import Map
import sys
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
splash_pic = QPixmap('splash.png')
splash = QtWidgets.QSplashScreen(splash_pic, Qt.WindowStaysOnTopHint)
splash.setWindowFlags(Qt.WindowStaysOnTopHint | Qt.FramelessWindowHint)
splash.setEnabled(False)
splash.setMask(splash_pic.mask())
splash.showMessage("<h6>Loading...</h6>", Qt.AlignBottom | Qt.AlignRight, Qt.black)
splash.show()
app.processEvents()
from modules.dashboard import Dashboard
dashboard = Dashboard()
splash.finish(dashboard)
dashboard.show()
app.exec_()
Here's what's working for me at the moment: adding a loop of app.processEvents()
from PyQt5 import QtWidgets
from PyQt5.QtCore import Qt, QThread
from PyQt5.QtGui import QPixmap
from modules.video_opening.map.map import Map
import sys
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
splash_pic = QPixmap('splash.png')
splash = QtWidgets.QSplashScreen(splash_pic, Qt.WindowStaysOnTopHint)
splash.setWindowFlags(Qt.WindowStaysOnTopHint | Qt.FramelessWindowHint)
splash.setEnabled(False)
splash.setMask(splash_pic.mask())
splash.showMessage("<h6>Loading...</h6>", Qt.AlignBottom | Qt.AlignRight, Qt.black)
splash.show()
for i in range(10000):
app.processEvents()
from modules.dashboard import Dashboard
dashboard = Dashboard()
splash.finish(dashboard)
dashboard.show()
app.exec_()
When I run the code below, I should be able to see a new window that I created. However, when I run it, I can see the new window appearing for a split second and disappearing. What could be the problem?
import sys
from PyQt4 import QtGui
applicationDefinition = QtGui.QApplication(sys.argv)
windowFigure = QtGui.QWidget()
windowFigure.show()
import sys
from PyQt4 import QtGui
applicationDefinition = QtGui.QApplication(sys.argv)
windowFigure = QtGui.QWidget()
windowFigure.show()
applicationDefinition.exec_()
This code doesn't show anything on execution. Not even the main window.
How can I use QWebEngineView() in order to make a useful code.
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtWebEngineWidgets import *
import sys
class MainWindow(QMainWindow):
def __init__(self, *args, **kwargs):
super(MainWindow, self).__init__(*args, **kwargs)
self.setWindowTitle('Browser Lite')
self.setGeometry(5, 30, 1355, 730)
self.browser = QWebEngineView()
self.browser.load(QUrl('http://www.google.com'))
self.setCentralWidget(self.browser)
app = QApplication(sys.argv)
win = MainWindow()
win.show()
app.exec_()
If you mean you get a blank screen try adding the following
from OpenGL import GL # apt install python3-opengl ..will get blank screen and console spam "shader program is not linked"
For a full example you could take a look at the following simplebrowser/pyqt5
I am new to pyQt4. First I installed pyqt4 then installed QTDesigner. And tried to run the given program( From internet). The file is named as main.py
import sys
from PyQt4.QtGui import QApplication, QDialog
from ui_imagedialog import Ui_ImageDialog
app = QApplication(sys.argv)
window = QDialog()
ui = Ui_ImageDialog()
ui.setupUi(window)
window.show()
sys.exit(app.exec_())
run the program using terminal
python main.py
I got the following error
from ui_imagedialog import Ui_ImageDialog
ImportError: No module named ui_imagedialog
How to solve this??
You could try running this instead;
import sys
from PyQt4.QtGui import QApplication, QDialog
app = QApplication(sys.argv)
window = QDialog()
window.show()
sys.exit(app.exec_())
And if you are using PyQt5, use this;
import sys
from PyQt5.QtWidgets import QApplication, QDialog
app = QApplication(sys.argv)
window = QDialog()
window.show()
sys.exit(app.exec_())
This will produce an empty window.
From the documentation, the ui_imagedialog is an imaginary file.