def keyPressEvent(self, event):
        if event.key() == Qt.Key_Control:
            self.keyControlPressed = True
        elif event.key() == Qt.Key_Return or event.key()==Qt.Key_Enter:
            if self.keyControlPressed:
                self.sendData()
        elif event.key() == Qt.Key_L:
            if self.keyControlPressed:
                self.sendArea.clear()
        elif event.key() == Qt.Key_K:
            if self.keyControlPressed:
                self.receiveArea.clear() 

def keyPressEvent(self, e):
        if e.modifiers() == Qt.ControlModifier and e.key() == Qt.Key_F:
            text, okPressed = QInputDialog.getText(self, "Find", "Find what: ")

            self.setSelectionBackgroundColor(QColor("#6be585"))

            if okPressed:
                if text == "":
                    text = " "
                    self.dialog.noMatch(text)

                self.searchtext = text

                """
                This is the way to implement a search function using QScintilla 
                http://pyqt.sourceforge.net/Docs/QScintilla2/classQsciScintilla.html#a37ac2bea94eafcfa639173557a821200
                """

                if self.findFirst(
                    self.searchtext, False, True, False, True, True, -1, -1, True, False
                ):
                    pass
                else:
                    self.dialog.noMatch(self.searchtext)

        if e.key() == Qt.Key_F3:
            self.findNext()
            self.setSelectionBackgroundColor(QColor("#6be585"))

        if e.modifiers() == Qt.ControlModifier and e.key() == Qt.Key_L:
            self.setCursorPosition(self.line, self.column + 1)
            return
        if e.modifiers() == Qt.ControlModifier and e.key() == 77:

            self.setCursorPosition(self.line + 1, self.column)
            return
        if e.modifiers() == Qt.ControlModifier and e.key() == Qt.Key_J:
            self.setCursorPosition(self.line, self.column - 1)

        if e.modifiers() == Qt.ControlModifier and e.key() == Qt.Key_I:
            self.setCursorPosition(self.line - 1, self.column)

        if e.modifiers() == Qt.ControlModifier and e.key() == Qt.Key_T:
            self.parent.parent.realterminal()
            return

        super().keyPressEvent(e)