The application crashes without errors every time any signal is called on
the widgets. how should i signal to my functions?
for example these signals make the app crash:
self.lineEdit.textChanged.connect(self.edit_input)
or
self.listWidget.clicked.connect(self.listClicked)
here is the full code:
from PyQt5 import QtCore, QtGui, QtWidgets
import sqlite3 as sqlite
import sys
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
super().__init__()
self.initUi()
def initUi(self):
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
self.lineEdit.textChanged.connect(self.edit_input)
self.listWidget = QtWidgets.QListWidget(self.centralwidget)
self.listWidget.clicked.connect(self.listClicked)
self.textEdit = QtWidgets.QTextEdit(self.centralwidget)
MainWindow.setCentralWidget(self.centralwidget)
self.db =
sqlite.connect(r'C:\Users\deadmarshal\PycharmProjects\Tim\test.db')
self.cur = self.db.cursor()
self.result = self.cur.execute("SELECT Esperanto FROM Words ORDER
BY Esperanto")
self.items = self.result.fetchall()
for i in self.items:
self.listWidget.insertItems(0, i)
def listClicked(self):
index = self.listWidget.currentRow()
results = self.cur.execute("SELECT English FROM Words WHERE
Esperanto = ?", (index,))
for row in results:
self.textEdit.clear()
self.textEdit.insertPlainText(row)
def edit_input(self):
word_to_esp = {'gx': 'ĝ', 'cx': 'ĉ', 'hx': 'ĥ', 'jx': 'ĵ', 'ux':
'ŭ', 'sx': 'ŝ'}
user_input = self.lineEdit.text()
user_input = user_input.lower()
for i in word_to_esp:
if user_input.__contains__(i):
a = user_input.replace(i, word_to_esp[i])
return self.lineEdit.set(a)
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
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