QPushButton exit my application when clicked
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When i click on the QPushButtons i have created it closes my application. Below is my code, I would be glad if i get a helping hand. Thanks .
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton
import sysimport sqlite3
from PyQt5.uic import loadUiType
ui,_ = loadUiType('Conf_Reg_Manager.ui')
class MainApp(QMainWindow, ui):
def init(self, parent=None):
QMainWindow.init(self)
super(MainApp,self).init(parent)
self.setupUi(self)
self.Handle_UI_Changes()
self.Handle_Buttons()############################################################################ ############### FUNCTIONS FOR UI CHANGES AND BUTTONS EFFECT ################ def Handle_UI_Changes(self): self.Hide_Themes() self.tabWidget.tabBar().setVisible(False) def Handle_Buttons(self): self.pushButton_4.clicked.connect(self.Show_Themes) self.pushButton_20.clicked.connect(self.Hide_Themes) self.pushButton_6.clicked.connect(self.Open_Daily_Operations_Tab) self.pushButton_23.clicked.connect(self.Open_Infromation_Details_Tab) self.pushButton_2.clicked.connect(self.Open_Users_Tab) self.pushButton_3.clicked.connect(self.Open_Settings_Tab) self.pushButton.clicked.connect(self.GET_DATA)############ CONNECT TO SQLITE3 DATABASE AND FILL GUI TABLE WITH DATA
def GET_DATA(self): db=sqlite3.connect('Conf_Registry_Storage') cursor=db.cursor() command=''' SELECT * from Daily_Operations ''' result=cursor.execute(command) self.tableWidget_6.setRowCount(0) for row_number, row_data in enumerate(result): self.tableWidget_6.insertRow(row_number) for column_number, data in enumerate(row_data): self.tableWidget_6.setItem(row_number, column_number, QTableWidgetItem(str(data))) ############################################## ########## SHOW AND HIDE THEMES ###################### def Show_Themes(self): self.groupBox_7.show() def Hide_Themes(self): self.groupBox_7.hide() ############################################## ########## OPENING TABS ###################### def Open_Daily_Operations_Tab(self): self.tabWidget.setCurrentIndex(0) def Open_Infromation_Details_Tab(self): self.tabWidget.setCurrentIndex(1) def Open_Users_Tab(self): self.tabWidget.setCurrentIndex(2) def Open_Settings_Tab(self): self.tabWidget.setCurrentIndex(3)def main():
app = QApplication(sys.argv)
window = MainApp()
window.show()
app.exec_()if name == 'main':
main() -
Hi and welcome to devnet,
Which buttons triggers that ?
By the way, please use coding tags around your code (the </> button) so it makes it easier to read.
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@LT-K101
Run it in a debugger and see where it crashes/how far you get. Or putprint()statements in. -
Hi and welcome to devnet,
Which buttons triggers that ?
By the way, please use coding tags around your code (the </> button) so it makes it easier to read.
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@JonB I used pycharm community edition to run the program and i get no error message just that the application exits when i click on a refresh button to load data from sqlite3 database
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@LT-K101
Did you step through in the debugger to watch which statements get executed and where it crashes? Or at least put inprint()statements? -
Out of curiosity, why not use Qt's SQL module ?
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Then as asked before: which exact method makes your application crash ?
Which exception do you get ?
Did you try to use pdb to see what is going on ?
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@SGaist now i can run and display my application but the syntax for connecting to the db within the PyQT5 GUI class is my problem now.
@LT-K101
PyQt5 does not come with its own Python documentation for Qt methods. They expect you to look at the standard C++ docs and adapt to Python. PySide does give some documentation, and should be same for PyQt5. So you should read through e.g. https://doc.qt.io/qtforpython-5/PySide2/QtSql/QSqlDatabase.html#detailed-description where there are Python examples of usingQSqlDatabase, etc.
