PyQt классы

# -*- coding: utf-8 -*-
 
# Form implementation generated from reading ui file 'mainForm.ui'
#
# Created by: PyQt4 UI code generator 4.11.4
#
# WARNING! All changes made in this file will be lost!
 
from PyQt4 import QtCore, QtGui
 
try:
    _fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
    def _fromUtf8(s):
        return s
 
try:
    _encoding = QtGui.QApplication.UnicodeUTF8
    def _translate(context, text, disambig):
        return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
    def _translate(context, text, disambig):
        return QtGui.QApplication.translate(context, text, disambig)
        
class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName(_fromUtf8("Form"))
        Form.resize(400, 386)
        self.gridLayout = QtGui.QGridLayout(Form)
        self.gridLayout.setObjectName(_fromUtf8("gridLayout"))
        self.label = QtGui.QLabel(Form)
        self.label.setObjectName(_fromUtf8("label"))
        self.gridLayout.addWidget(self.label, 3, 0, 1, 1)
        self.lineEdit = QtGui.QLineEdit(Form)
        self.lineEdit.setObjectName(_fromUtf8("lineEdit"))
        self.gridLayout.addWidget(self.lineEdit, 4, 0, 1, 1)
        self.pushButton = QtGui.QPushButton(Form)
        self.pushButton.setObjectName(_fromUtf8("pushButton"))
        self.gridLayout.addWidget(self.pushButton, 4, 1, 1, 1)
 
        self.retranslateUi(Form)
        QtCore.QObject.connect(self.pushButton, QtCore.SIGNAL(_fromUtf8("clicked()")), self.setTextInEdit)
        QtCore.QMetaObject.connectSlotsByName(Form)
 
    def retranslateUi(self, Form):
        Form.setWindowTitle(_translate("Form", "Form", None))
        self.label.setText(_translate("Form", "TextLabel", None))
        self.pushButton.setText(_translate("Form", "PushButton", None))
        
    def setTextInEdit(self):
        self.label.setText(_translate("Form", self.lineEdit.text(), None))
                    
if __name__ == "__main__":
    import sys
    app = QtGui.QApplication(sys.argv)
    Form = QtGui.QWidget()
    ui = Ui_Form()
    ui.setupUi(Form)
    Form.show()
    sys.exit(app.exec_())

class Escape(QtGui.QWidget):
   def keyPressEvent(self, event):
        if event.key() == QtCore.Qt.Key_Escape:
            self.close()
        elif event.key() == QtCore.Qt.Key_Return:
            ui.setTextInEdit()
        elif event.key() == QtCore.Qt.Key_Delete:
            ui.label.clear()
            ui.lineEdit.clear()
        else:
            ignore()

if __name__ == "__main__":
    import sys
    app = QtGui.QApplication(sys.argv)
    Form = Escape()
    ui = Ui_Form()
    ui.setupUi(Form)
    Form.show()
    sys.exit(app.exec_())

!/usr/bin/python
 
# statusbar.py
 
import sys
from PyQt4 import QtGui
 
class MainWindow(QtGui.QMainWindow):
    def __init__(self):
        QtGui.QMainWindow.__init__(self)
 
        self.resize(250, 150)
        self.setWindowTitle('statusbar')
 
        self.statusBar().showMessage('Ready')
 
 
app = QtGui.QApplication(sys.argv)
main = MainWindow()
main.show()
sys.exit(app.exec_())

self.status = QtGui.QStatusBar(Form)
self.status.setGeometry(QtCore.QRect(0, 538, 531, 27))
self.status.showMessage("System Status | Normal")