http://stackoverflow.com/questions/12829477

SO_list_view_example

from PyQt4.QtCore import *
from PyQt4.QtGui import *

class ListOrderView(QListView):

    itemMoved = pyqtSignal(int, int, QStandardItem) 

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

        self.setAcceptDrops(True)
        self.setDragEnabled(True)
        self.setDragDropMode(QAbstractItemView.InternalMove)
        self.setDefaultDropAction(Qt.MoveAction)

        self.dragItem = None
        self.dragRow = None

    def dropEvent(self, event): 
        print "Drop Event"

        super(ListOrderView, self).dropEvent(event) 

        self.itemMoved.emit(self.dragRow, self.row(self.dragItem), self.dragItem)
        self.dragItem = None

    def dragEnterEvent(self, event):
        print "Start Drag"

        if event.proposedAction() == Qt.MoveAction:
            event.acceptProposedAction()
            self.dragItem = self.currentItem() 
            self.dragRow = self.row(self.dragItem) 
            return

        super(ListOrderView, self).dragEnterEvent(event)

    def currentItem(self):
        index = self.currentIndex()
        item = self.model().itemFromIndex(index)
        return item

    def row(self, item):
        index = self.selectedIndexes()[0]
        row = index.row()
        return row



class ListOrderControl(QWidget):
    def __init__(self, parent=None):
        super(ListOrderControl, self).__init__(parent)

        self.model = QStandardItemModel()
        self.model.setSupportedDragActions(Qt.MoveAction)

        self.listOrderView = ListOrderView()
        self.listOrderView.setModel(self.model) 

        self.layout = QVBoxLayout(self)
        self.layout.addWidget(self.listOrderView)

        self.button = QPushButton("Print Model Info")
        self.layout.addWidget(self.button)

        for i in 'abcd':
            self.addItem(i)

        self.button.clicked.connect(self.printModelContents)


    def addItem(self, string, select=False):
        item = QStandardItem(string)
        item.setDropEnabled(False)
        self.model.appendRow(item)

        if select:
            self.listOrderView.selectionModel().setCurrentIndex(
                self.model.indexFromItem(item), 
                QItemSelectionModel.ClearAndSelect)


    def printModelContents(self):
        print "[LISTCONTROL] item order is:"
        for i in range(self.model.rowCount()):
            text = self.model.item(i).text()
            print "\t%s" % text



if __name__ == "__main__":
    app = QApplication([])
    win = ListOrderControl()
    win.show()
    win.raise_()
    app.exec_()