http://lists.qt-project.org/pipermail/interest/2018-August/030704.html

gistfile1.txt

from PySide2 import QtWidgets, QtCore

class MyTableView(QtWidgets.QTableView):
    SECTION_SIZE = 70

    def __init__(self, parent=None):
        super(MyTableView, self).__init__(parent)

    def setModel(self, mdl):
        super().setModel(mdl)
        header = self.horizontalHeader()

        header.setSectionResizeMode(0, QtWidgets.QHeaderView.Interactive)
        header.setSectionResizeMode(1, QtWidgets.QHeaderView.Interactive)
        header.setSectionResizeMode(2, QtWidgets.QHeaderView.Interactive)
        header.setSectionResizeMode(3, QtWidgets.QHeaderView.Interactive)
        header.setSectionResizeMode(4, QtWidgets.QHeaderView.Stretch)
        header.setSectionResizeMode(5, QtWidgets.QHeaderView.Fixed)
        header.setStretchLastSection(True)


class MyModel(QtCore.QAbstractTableModel):
    def __init__(self, parent=None):
        super(MyModel, self).__init__(parent)
        self.header_labels = ['Thumbnail', 'File name', 'Version', 'Read name', 'Status', 'Show']
        self.data_ = range(10)

    def data(self, index, role):
        if role == QtCore.Qt.DisplayRole:
            return self.data_[index.row()]

    def rowCount(self, index=None):
        return len(self.data_)
    
    def columnCount(self, index=None):
        return len(self.header_labels)
   
if __name__ == '__main__':
    import sys
    app = QtWidgets.QApplication([])
    model = MyModel()
    view = MyTableView()
    view.setModel(model)
    view.show()
    view.raise_()
    sys.exit(app.exec_())