Python Pyqt5: How To Show An Error Message With Pyqt5
In normal Python (3.x) we always use showerror() from the tkinter module to display an error message but what should I do in PyQt5 to display exactly the same message type as well?
Solution 1:
Don't forget to call .exec_()
to display the error:
from PyQt5.QtWidgets importQMessageBoxmsg= QMessageBox()
msg.setIcon(QMessageBox.Critical)
msg.setText("Error")
msg.setInformativeText('More information')
msg.setWindowTitle("Error")
msg.exec_()
Solution 2:
Qt includes an error-message specific dialog classQErrorMessage
which you should use to ensure your dialog matches system standards. To show the dialog just create a dialog object, then call .showMessage()
. For example:
error_dialog=QtWidgets.QErrorMessage()error_dialog.showMessage('Ohno!')
Here is a minimal working example script:
import PyQt5
from PyQt5 importQtWidgetsapp= QtWidgets.QApplication([])
error_dialog = QtWidgets.QErrorMessage()
error_dialog.showMessage('Oh no!')
app.exec_()
Solution 3:
To show a message box, you can call this def:
from PyQt5.QtWidgets import QMessageBox, QWidget
MainClass(QWidget):
def__init__(self):
super().__init__()
defclickMethod(self):
QMessageBox.about(self, "Title", "Message")
Solution 4:
All above options didn't work for me using Komodo Edit 11.0. Just had returned "1" or if not implemented "-1073741819".
Usefull for me was: Vanloc's solution.
defmy_exception_hook(exctype, value, traceback):
# Print the error and tracebackprint(exctype, value, traceback)
# Call the normal Exception hook after
sys._excepthook(exctype, value, traceback)
sys.exit(1)
# Back up the reference to the exceptionhook
sys._excepthook = sys.excepthook
# Set the exception hook to our wrapping function
sys.excepthook = my_exception_hook
Solution 5:
The following should work:
msg = QMessageBox()
msg.setIcon(QMessageBox.Critical)
msg.setText("Error")
msg.setInformativeText(e)
msg.setWindowTitle("Error")
It is not the exact same message type (different GUI's) but fairly close.
e
is the expression for an Error in python3
Hope that helped, Narusan
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