PyQt --> connect() --> TypeError: Argumente, die nicht mit irgendeinem überladenen nennen

Habe ich Probleme mit der Verbindung() from PyQt4. Zum Beispiel hier .UI konvertiert pyuic4.

from PyQt4 import QtCore, QtGui

try:
    _fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
    _fromUtf8 = lambda s: s

class Ui_Dialog(object):
    def setupUi(self, Dialog):
        Dialog.setObjectName(_fromUtf8("Dialog"))
        Dialog.resize(382, 258)
        self.btnClearText = QtGui.QPushButton(Dialog)
        self.btnClearText.setGeometry(QtCore.QRect(80, 220, 75, 23))
        self.btnClearText.setObjectName(_fromUtf8("btnClearText"))
        self.btnSetText = QtGui.QPushButton(Dialog)
        self.btnSetText.setGeometry(QtCore.QRect(220, 220, 75, 23))
        self.btnSetText.setObjectName(_fromUtf8("btnSetText"))
        self.textEdit = QtGui.QTextEdit(Dialog)
        self.textEdit.setGeometry(QtCore.QRect(10, 20, 361, 41))
        self.textEdit.setObjectName(_fromUtf8("textEdit"))
        self.textEdit_2 = QtGui.QTextEdit(Dialog)
        self.textEdit_2.setGeometry(QtCore.QRect(10, 80, 361, 41))
        self.textEdit_2.setObjectName(_fromUtf8("textEdit_2"))
        self.label = QtGui.QLabel(Dialog)
        self.label.setGeometry(QtCore.QRect(160, 170, 46, 13))
        self.label.setObjectName(_fromUtf8("label"))

        self.retranslateUi(Dialog)
        QtCore.QObject.connect(self.btnSetText, QtCore.SIGNAL(_fromUtf8("released()")), self.textEdit_2.paste)
        QtCore.QMetaObject.connectSlotsByName(Dialog)

    def retranslateUi(self, Dialog):
        Dialog.setWindowTitle(QtGui.QApplication.translate("Dialog", "Dialog", None, QtGui.QApplication.UnicodeUTF8))
        self.btnClearText.setText(QtGui.QApplication.translate("Dialog", "Copy", None, QtGui.QApplication.UnicodeUTF8))
        self.btnSetText.setText(QtGui.QApplication.translate("Dialog", "Paste", None, QtGui.QApplication.UnicodeUTF8))
        self.textEdit.setHtml(QtGui.QApplication.translate("Dialog", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'MS Shell Dlg 2\'; font-size:8.25pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\"><span style=\" font-size:8pt;\">ABC</span></p></body></html>", None, QtGui.QApplication.UnicodeUTF8))
        self.label.setText(QtGui.QApplication.translate("Dialog", "TextLabel", None, QtGui.QApplication.UnicodeUTF8))


if __name__ == "__main__":
    import sys
    app = QtGui.QApplication(sys.argv)
    Dialog = QtGui.QDialog()
    ui = Ui_Dialog()
    ui.setupUi(Dialog)
    Dialog.show()
    sys.exit(app.exec_())

Und .PY Datei-Auflistung. Bitte beachten Sie Doppel-kommentierte Zeile. Es gibt Fehler, aber theoretisch sollte es funktionieren.

import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from simple import *

class MyApp(QtGui.QMainWindow, Ui_Dialog):
    def __init__(self):
        QtGui.QMainWindow.__init__(self)
        Ui_Dialog.__init__(self)
        self.setupUi(self)
##        self.connect(self.btnClearText, QtCore.SIGNAL('clicked()'), self.label.setText('ABC'))

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

Was ich habe ist:

TypeError: arguments did not match any overloaded call:
QObject.connect(QObject, SIGNAL(), QObject, SLOT(), Qt.ConnectionType=Qt.AutoConnection): argument 3 has unexpected type 'NoneType'
QObject.connect(QObject, SIGNAL(), callable, Qt.ConnectionType=Qt.AutoConnection): argument 3 has unexpected type 'NoneType'
QObject.connect(QObject, SIGNAL(), SLOT(), Qt.ConnectionType=Qt.AutoConnection): argument 3 has unexpected type 'NoneType'

Jede mögliche Hilfe würde geschätzt.


Vielen Dank Luke Woodward, hier ist eine richtige Variante.

class MyApp(QtGui.QMainWindow, Ui_Dialog):
    def __init__(self):
        QtGui.QMainWindow.__init__(self)
        Ui_Dialog.__init__(self)
        self.setupUi(self)
        self.connect(self.btnClearText, QtCore.SIGNAL('clicked()'), self.setLabelText)
    def setLabelText(self):
        self.label.setText('ABC')

InformationsquelleAutor asv | 2011-02-14

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