How to write text from QLineEdit to pyqt4 variable?

Question

PyQt

It does not work out to write the text from QLineEdit to the variable and associate the saving with the button click.
here is part of the code

class Ui_Search(object):
    def setupUi2(sear, Searcher):
        Searcher.setWindowTitle(_translate("MyForm", "Form", None))
        Searcher.resize(400, 300)
        sear.button=QtGui.QPushButton(Searcher)
        sear.button.setText(_translate("MyForm", "OK", None))
        sear.button.move(20,10)
        sear.label1=QtGui.QLineEdit(Searcher)
        sear.label1.setGeometry(QtCore.QRect(20, 35, 350, 25))
        sear.button.clicked.connect(sear.label1.text)
        sear.label1.text()
        sear.label1.setText("")
        sear.connect(sear.label1, QtCore.SIGNAL('textChanged()'), sear.button)