Pyqt5. How to get selected column name from qtable

When using PyQt5 with a QTableWidget, if you want to retrieve the name of the selected column, you can use the `currentItem()` function to access the current item in the table and then its `data()` method along with `column` attribute to obtain the data and column index. Here's an example: ```python from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QTableWidget, QTableWidgetItem class TableSelectionExample(QWidget): def __init__(self): super().__init__() self.table = QTableWidget() self.init_table() layout = QVBoxLayout() layout.addWidget(self.table) self.setLayout(layout) def init_table(self): headers = ["Column 1", "Column 2", "Column 3"] self.table.setColumnCount(len(headers)) self.table.setHorizontalHeaderLabels(headers) for i in range(10): # Example data row = [] for j, header in enumerate(headers): item = QTableWidgetItem(f"Row {i}, Column {j+1}") row.append(item) self.table.setRow(i, row) def select_and_get_column_name(self): current_item = self.table.currentItem() if current_item: column_index = current_item.column() column_name = self.table.horizontalHeaderItem(column_index).text() return column_name if __name__ == "__main__": app = QApplication([]) ex = TableSelectionExample() ex.show() selected_column = ex.select_and_get_column_name() print(f"The selected column name is: {selected_column}") # Replace this line with your desired action after getting the column name app.exec_() ``` In this code snippet, we create a simple QTableWidget, fill it with some sample data, and define a method `select_and_get_column_name()` that retrieves the selected column name when a cell is clicked or selected. Remember to install and properly import the necessary modules for PyQt5, as shown in the provided error message[^1]. If you're still encountering issues with importing, make sure you have PyQt5 installed correctly and the environment is set up accordingly.