item = QTableWidgetItem("Data") item.setToolTip("This is some sample data.")
for row in range(tableWidget.rowCount()): for col in range(tableWidget.columnCount()): item = tableWidget.item(row, col) item.setToolTip(f"Row: {row}, Column: {col}")In this example, a loop is used to iterate through each QTableWidgetItem object in a tableWidget. The `setToolTip()` method is used to set a tooltip for each item with the format "Row: (row number), Column: (column number)". Package Library: `PyQt5.QtWidgets` is a package in the PyQt5 library that provides a set of widgets and classes for building desktop applications with a graphical user interface.