Question

PyQt5, when I click button, it close window itself.

Hi, I am very new to PyQt5. if this it too basic question. 

please give me some howtouse url. so I can learn my self.

import sys, io
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5 import uic
from tag_test import Ui_MainWindow
import pymysql
pymysql.install_as_MySQLdb()
import MySQLdb
from sqlalchemy import create_engine

sys.stdout = io.TextIOWrapper(sys.stdout.detach(), encoding = 'utf-8')
sys.stderr = io.TextIOWrapper(sys.stderr.detach(), encoding = 'utf-8')

class Main(QMainWindow, Ui_MainWindow):
    def __init__(self):
        super().__init__()
        self.setupUi(self)
        self.initSignal()

    def initSignal(self):
        self.pushButton_7.clicked.connect(self.inputAdinfo)
        self.pushButton_8.clicked.connect(self.inputKeyword)

    @pyqtSlot()
    def inputAdinfo(self):
        self.ad_productN = self.lineEdit.text()
        self.ad_camN = self.lineEdit_2.text()
        print(self.ad_productN, self.ad_camN)

    @pyqtSlot()
    def inputKeyword(self):
        self.Keywords = self.plainTextEdit.text()
        print(self.Keywords)

# print(self.ad_productN, self.ad_camN , self.Keywords)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = Main()
    window.show()
    app.exec_()

this is my code.

i tested it with 

   print('test')

at both of pyqtSlot and it worked fine. 

so I thought signal and slot are connected.

but when i put second def

def inputKeyword(self):
        self.Keywords = self.plainTextEdit.text()
        print(self.Keywords)

as soon as I click the button, it close itself.

how can i fix this?

Comments

If you run it from the terminal or cmd it will show an error which will give a clue as to where the problem is