Sort QTableView in pyqt5

Question

I want to sort a QTableView in PyQT5. I found an example that uses PyQT4, but in PyQT5 SIGNALs are not existing anymore. This is my example code

class MainWindow         


        

Answer 1

for those of you guys who wants to import pandas dataframe into qt model try this:

class PandasModel(QtCore.QAbstractTableModel):

    def __init__(self, data, parent=None):
        """

        :param data: a pandas dataframe
        :param parent: 
        """
        QtCore.QAbstractTableModel.__init__(self, parent)
        self._data = data
        # self.headerdata = data.columns


    def rowCount(self, parent=None):
        return len(self._data.values)

    def columnCount(self, parent=None):
        return self._data.columns.size

    def data(self, index, role=QtCore.Qt.DisplayRole):
        if index.isValid():
            if role == QtCore.Qt.DisplayRole:
                return str(self._data.values[index.row()][index.column()])
        return None

    def headerData(self, rowcol, orientation, role):
        # print(self._data.columns[rowcol])
        # print(self._data.index[rowcol])
        if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
            return self._data.columns[rowcol]
        if orientation == QtCore.Qt.Vertical and role == QtCore.Qt.DisplayRole:
            return self._data.index[rowcol]
        return None

    def flags(self, index):
        flags = super(self.__class__, self).flags(index)
        flags |= QtCore.Qt.ItemIsEditable
        flags |= QtCore.Qt.ItemIsSelectable
        flags |= QtCore.Qt.ItemIsEnabled
        flags |= QtCore.Qt.ItemIsDragEnabled
        flags |= QtCore.Qt.ItemIsDropEnabled
        return flags

    def sort(self, Ncol, order):
        """Sort table by given column number.
        """
        try:
            self.layoutAboutToBeChanged.emit()
            self._data = self._data.sort_values(self._data.columns[Ncol], ascending=not order)
            self.layoutChanged.emit()
        except Exception as e:
            print(e)

I have forgotten where I got the base pandasmodel, probably from here