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   | import sys
 
from PyQt5 import (QtWidgets, QtCore)
 
#############################################################################
class Fenetre(QtWidgets.QMainWindow):
 
    #========================================================================
    def __init__(self, parent=None):
        super().__init__(parent)
        self.resize(300,200)
 
        self.statusbar = QtWidgets.QStatusBar(self)
        self.setStatusBar(self.statusbar)
 
        self.combo = QtWidgets.QComboBox(self)
        self.combo.setMouseTracking(True)
        self.combo.setStatusTip("test")
        self.combo.highlighted.connect(self.barrestatus)
 
        self.combo.addItem("aaa")
        self.combo.setItemData(0, "111222333", QtCore.Qt.ToolTipRole)
 
        self.combo.addItem("bbb")
        self.combo.setItemData(1, "444555666", QtCore.Qt.ToolTipRole)
 
        self.combo.addItem("ccc")
        self.combo.setItemData(2, "777888999", QtCore.Qt.ToolTipRole)
 
        posit = QtWidgets.QGridLayout()
        posit.addWidget(self.combo, 0, 0)
        self.setLayout(posit)
 
    def barrestatus(self, index):
        msg = self.combo.itemData(index, QtCore.Qt.ToolTipRole)
        self.statusBar().showMessage(msg)
 
#############################################################################
if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    fenetre = Fenetre()
    fenetre.show()
    sys.exit(app.exec_()) | 
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