gui/gui_mainLayout.py
def display_error_message(self):
        """
        This function displays an error message when a wrong value is typed.
        """
        self.ui.error_label.setScaledContents(True)  # Warning image shown.
        self.ui.error_text_label.show()  # Warning message shown.
        self.ui.error_text_label.setStyleSheet('color: red')
def display_error_message(self):
        """
        This function displays an error message when a wrong value is typed.
        """
        self.ui.error_label.setScaledContents(True)  # Warning image shown.
        self.ui.error_text_label.show()  # Warning message shown.
        self.ui.error_text_label.setStyleSheet('color: red')
This function displays an error message when a wrong value is typed.