Python-сообщество

from PyQt4 import QtCore, QtGui
import sys
try:  
    from PyQt4.QtCore import QString  
    try:
        _fromUtf8 = 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_MainWindow(QtGui.QMainWindow):
        def __init__(self):
            QtGui.QMainWindow.__init__(self)
            self.setupUi(self)
        
        def setupUi(self, MainWindow):
            MainWindow.setObjectName(_fromUtf8("MainWindow"))
            MainWindow.resize(412, 495)
            self.centralwidget = QtGui.QWidget(MainWindow)
            self.centralwidget.setObjectName(_fromUtf8("centralwidget"))
            self.horizontalLayout = QtGui.QHBoxLayout(self.centralwidget)
            self.horizontalLayout.setObjectName(_fromUtf8("horizontalLayout"))
            self.groupBox = QtGui.QGroupBox(self.centralwidget)
            self.groupBox.setObjectName(_fromUtf8("groupBox"))
            self.pushButton_12 = QtGui.QPushButton(self.groupBox)
            self.pushButton_12.setGeometry(QtCore.QRect(200, 230, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_12.setFont(font)
            self.pushButton_12.setObjectName(_fromUtf8("pushButton_12"))
            self.pushButton_11 = QtGui.QPushButton(self.groupBox)
            self.pushButton_11.setGeometry(QtCore.QRect(110, 230, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_11.setFont(font)
            self.pushButton_11.setObjectName(_fromUtf8("pushButton_11"))
            self.pushButton_5 = QtGui.QPushButton(self.groupBox)
            self.pushButton_5.setGeometry(QtCore.QRect(290, 160, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_5.setFont(font)
            self.pushButton_5.setObjectName(_fromUtf8("pushButton_5"))
            self.pushButton_16 = QtGui.QPushButton(self.groupBox)
            self.pushButton_16.setGeometry(QtCore.QRect(290, 230, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_16.setFont(font)
            self.pushButton_16.setObjectName(_fromUtf8("pushButton_16"))
            self.pushButton_15 = QtGui.QPushButton(self.groupBox)
            self.pushButton_15.setGeometry(QtCore.QRect(290, 300, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_15.setFont(font)
            self.pushButton_15.setObjectName(_fromUtf8("pushButton_15"))
            self.pushButton_4 = QtGui.QPushButton(self.groupBox)
            self.pushButton_4.setGeometry(QtCore.QRect(290, 90, 75, 61))
            self.pushButton_4.setObjectName(_fromUtf8("pushButton_4"))
            self.pushButton_6 = QtGui.QPushButton(self.groupBox)
            self.pushButton_6.setGeometry(QtCore.QRect(110, 160, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_6.setFont(font)
            self.pushButton_6.setObjectName(_fromUtf8("pushButton_6"))
            self.pushButton_3 = QtGui.QPushButton(self.groupBox)
            self.pushButton_3.setGeometry(QtCore.QRect(200, 90, 75, 61))
            self.pushButton_3.setObjectName(_fromUtf8("pushButton_3"))
            self.pushButton_9 = QtGui.QPushButton(self.groupBox)
            self.pushButton_9.setGeometry(QtCore.QRect(20, 300, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_9.setFont(font)
            self.pushButton_9.setObjectName(_fromUtf8("pushButton_9"))
            self.pushButton_20 = QtGui.QPushButton(self.groupBox)
            self.pushButton_20.setGeometry(QtCore.QRect(110, 370, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_20.setFont(font)
            self.pushButton_20.setObjectName(_fromUtf8("pushButton_20"))
            self.pushButton_14 = QtGui.QPushButton(self.groupBox)
            self.pushButton_14.setGeometry(QtCore.QRect(20, 230, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_14.setFont(font)
            self.pushButton_14.setObjectName(_fromUtf8("pushButton_14"))
            self.pushButton_8 = QtGui.QPushButton(self.groupBox)
            self.pushButton_8.setGeometry(QtCore.QRect(20, 160, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_8.setFont(font)
            self.pushButton_8.setObjectName(_fromUtf8("pushButton_8"))
            self.pushButton_13 = QtGui.QPushButton(self.groupBox)
            self.pushButton_13.setGeometry(QtCore.QRect(110, 300, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_13.setFont(font)
            self.pushButton_13.setObjectName(_fromUtf8("pushButton_13"))
            self.pushButton_7 = QtGui.QPushButton(self.groupBox)
            self.pushButton_7.setGeometry(QtCore.QRect(200, 160, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_7.setFont(font)
            self.pushButton_7.setObjectName(_fromUtf8("pushButton_7"))
            self.pushButton_2 = QtGui.QPushButton(self.groupBox)
            self.pushButton_2.setGeometry(QtCore.QRect(110, 90, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_2.setFont(font)
            self.pushButton_2.setObjectName(_fromUtf8("pushButton_2"))
            self.pushButton_18 = QtGui.QPushButton(self.groupBox)
            self.pushButton_18.setGeometry(QtCore.QRect(20, 370, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_18.setFont(font)
            self.pushButton_18.setObjectName(_fromUtf8("pushButton_18"))
            self.pushButton_17 = QtGui.QPushButton(self.groupBox)
            self.pushButton_17.setGeometry(QtCore.QRect(290, 370, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_17.setFont(font)
            self.pushButton_17.setObjectName(_fromUtf8("pushButton_17"))
            self.pushButton_10 = QtGui.QPushButton(self.groupBox)
            self.pushButton_10.setGeometry(QtCore.QRect(200, 300, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_10.setFont(font)
            self.pushButton_10.setObjectName(_fromUtf8("pushButton_10"))
            self.pushButton = QtGui.QPushButton(self.groupBox)
            self.pushButton.setGeometry(QtCore.QRect(20, 90, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton.setFont(font)
            self.pushButton.setObjectName(_fromUtf8("pushButton"))
            self.pushButton_19 = QtGui.QPushButton(self.groupBox)
            self.pushButton_19.setGeometry(QtCore.QRect(200, 370, 75, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.pushButton_19.setFont(font)
            self.pushButton_19.setObjectName(_fromUtf8("pushButton_19"))
            self.label = QtGui.QLabel(self.groupBox)
            self.label.setGeometry(QtCore.QRect(50, 10, 311, 61))
            font = QtGui.QFont()
            font.setPointSize(20)
            self.label.setFont(font)
            self.label.setLayoutDirection(QtCore.Qt.RightToLeft)
            self.label.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
            self.label.setObjectName(_fromUtf8("label"))
            self.horizontalLayout.addWidget(self.groupBox)
            MainWindow.setCentralWidget(self.centralwidget)
            self.menubar = QtGui.QMenuBar(MainWindow)
            self.menubar.setGeometry(QtCore.QRect(0, 0, 412, 21))
            self.menubar.setObjectName(_fromUtf8("menubar"))
            MainWindow.setMenuBar(self.menubar)
            self.statusbar = QtGui.QStatusBar(MainWindow)
            self.statusbar.setObjectName(_fromUtf8("statusbar"))
            MainWindow.setStatusBar(self.statusbar)
            
        
            self.retranslateUi(MainWindow)
            QtCore.QMetaObject.connectSlotsByName(MainWindow)
        def retranslateUi(self, MainWindow):
            MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow", None))
            self.groupBox.setTitle(_translate("MainWindow", "GroupBox", None))
            self.pushButton_12.setText(_translate("MainWindow", "6", None))
            self.pushButton_11.setText(_translate("MainWindow", "5", None))
            self.pushButton_5.setText(_translate("MainWindow", "/", None))
            self.pushButton_16.setText(_translate("MainWindow", "*", None))
            self.pushButton_15.setText(_translate("MainWindow", "-", None))
            self.pushButton_4.setText(_translate("MainWindow", "PushButton", None))
            self.pushButton_6.setText(_translate("MainWindow", "8", None))
            self.pushButton_3.setText(_translate("MainWindow", "PushButton", None))
            self.pushButton_9.setText(_translate("MainWindow", "1", None))
            self.pushButton_20.setText(_translate("MainWindow", ".", None))
            self.pushButton_14.setText(_translate("MainWindow", "4", None))
            self.pushButton_8.setText(_translate("MainWindow", "7", None))
            self.pushButton_13.setText(_translate("MainWindow", "2", None))
            self.pushButton_7.setText(_translate("MainWindow", "9", None))
            self.pushButton_2.setText(_translate("MainWindow", "<=", None))
            self.pushButton_18.setText(_translate("MainWindow", "0", None))
            self.pushButton_17.setText(_translate("MainWindow", "+", None))
            self.pushButton_10.setText(_translate("MainWindow", "3", None))
            self.pushButton.setText(_translate("MainWindow", "C", None))
            self.pushButton_19.setText(_translate("MainWindow", "=", None))
            self.label.setText(_translate("MainWindow", "TextLabel", None))
            
    
    if __name__ == '__main__':
        app = QtGui.QApplication(sys.argv)
        MyCalc = Ui_MainWindow()
        MyCalc.show()
        sys.exit(app.exec_())
        
except ImportError:  
    QString = str

class MainWindow(QtGui.QMainWindow):
    """Класс главного окна."""
    def __init__(self):
        super(MainWindow, self).__init__()
        uic.loadUi('forms\\main.ui', self)

    if __name__ == "__main__":
    import sys
    app = QtGui.QApplication(sys.argv)
    MainWindow = QtGui.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())