Drag and Drop between two QTreeViews

Question

My purpose is to make drag and drop between two QTreeViews. Eg: drag on item from a local treeview to a remote treeview, the remote treeview will accept signal and trigger one function (eg: print some thing, so I know it succeeded).

I have searched some posts, they just do with one QTreeView, and I'm still confused how to use drag and drop. This is my full code, including the UI.

main.py

    # coding=utf-8
    __author__ = 'Administrator'

    import os, re, sys, time, math
    import ConfigParser
    from PyQt4 import QtCore, QtGui
    from PyQt4.QtCore import *
    from PyQt4.QtGui import *
    from MainWindow_ui import Ui_MainWindow
    import AccountDialog_ui


    ######## Config ini File Part#######################
    def create_conf_ini(ipaddress='', username='', password='',  secret='',mode="a+"):
        conf = ConfigParser.ConfigParser()
        conf.add_section("logininfor")
        conf.set("logininfor", "ipaddress", ipaddress)
        conf.set("logininfor", "username", username)
        conf.set("logininfor", "password", password)
        conf.set("logininfor", "secret", secret)
        f = open('config.ini', mode)
        conf.write(f)
        f.close()

    ### get conf file
    def get_infor_from_config():
        conf = ConfigParser.ConfigParser()
        if os.path.isfile('config.ini'):
            conf.read("config.ini")
            ipaddress = conf.get("logininfor", "ipaddress")
            username = conf.get("logininfor", "username")
            password = conf.get("logininfor", "password")
            secret = conf.get("logininfor", "secret")
            return ipaddress, username, password, secret
        else:
            create_conf_ini()
            return '', '', '', ''
    ###############################

    class S3MiniToolsView(QtGui.QMainWindow, Ui_MainWindow):
        def __init__(self):
            QtGui.QMainWindow.__init__(self)
            self.setupUi(self)
            self.actionAccount_Setting.triggered.connect(self.accountsetting_dlg)

            self.init_localtreeview()
            self.init_remotetreeview()
            QtGui.QTreeView.connect(self.remote_Treeview, QtCore.SIGNAL('dropEvent()'), self.additem)

            (ipaddress, username, password, secret) = get_infor_from_config()
            self.servername_mainw.setText(ipaddress)
            self.uid_mainw.setText(username)
            self.accesskey_mainw.setText(password)
            self.secretkey_mainw.setText(secret)

        def init_localtreeview(self):
            self.fileSystemModel = QFileSystemModel(self.local_Treeview)
            self.fileSystemModel.setReadOnly(False)
            #self.fileSystemModel.setFilter(QDir.AllDirs | QDir.NoDotAndDotDot | QDir.Drives)
            root = self.fileSystemModel.setRootPath("")
            self.local_Treeview.setModel(self.fileSystemModel)
            self.local_Treeview.setRootIndex(root)
            self.local_Treeview.setDragDropMode(QtGui.QAbstractItemView.DragOnly)
            #QtCore.QObject.connect(self.local_Treeview.selectionModel(), QtCore.SIGNAL('selectionChanged(QItemSelection, QItemSelection)'), self.test)
            #self.local_Treeview.clicked[QtCore.QModelIndex].connect(self.test)
            self.local_Treeview.clicked.connect(self.test)
            self.local_Treeview.setDragEnabled(True)
        def init_remotetreeview(self):
            self.remote_Treeview.setDragDropMode(QtGui.QAbstractItemView.DropOnly)
            # self.fileSystemModel = QFileSystemModel(self.local_Treeview)
            # self.fileSystemModel.setReadOnly(False)
            # self.remote_Treeview.setModel(self.fileSystemModel)
            self.model = QtGui.QStandardItemModel(self.remote_Treeview)
            self.remote_Treeview.setModel(self.model)

            self.remote_Treeview.setAcceptDrops(True)


        def dragEnterEvent(self, e):

            if e.mimeData().hasFormat('text/plain'):
                e.accept()

            else:
                e.ignore()

        def dropEvent(self, e):
            print 'In dropEvent'
            # item = QtGui.QStandardItem("did ok")
            # self.model.appendRow(item)
            #self.remote_Treeview.(e.mimeData().text())

        def additem(self):
            item = QtGui.QStandardItem("did ok")
            self.model.appendRow(item)

        #@QtCore.pyqtSlot("QItemSelection, QItemSelection")
        @QtCore.pyqtSlot(QtCore.QModelIndex)
        def test(self, index):
            indexItem = self.fileSystemModel.index(index.row(), 0, index.parent())
            # path or filename selected
            fileName = self.fileSystemModel.fileName(indexItem)
            # full path/filename selected
            filePath = self.fileSystemModel.filePath(indexItem)

            print("hello!")
            print(fileName)
            print(filePath)


        def accountsetting_dlg(self):
            print "AccountSetting"
            accountdlg = QuickConnectDlg(self)
            accountdlg.lineEdit_servername.setText( 'ceph-radosgw.lab.com')
            accountdlg.lineEdit_accountname.setText( 'johndoe')
            accountdlg.lineEdit_accesskey.setText( 'CIXN1L1B42JAYGV6KSIT')
            accountdlg.lineEdit_secretkey.setText('17YTAqVBL60StWQniDNWoAH04bScFbjxAxpxNFCg')
            accountdlg.lineEdit_httpport.setText( '8080')
            accountdlg.lineEdit_httpsport.setText( '443')

            if accountdlg.exec_():

                servername = accountdlg.lineEdit_servername.text()
                accountname = accountdlg.lineEdit_accountname.text()
                accesskey = accountdlg.lineEdit_accesskey.text()
                secretkey = accountdlg.lineEdit_secretkey.text()

                create_conf_ini(servername, accountname, accesskey, secretkey, 'r+')

            return

    class QuickConnectDlg(QDialog, AccountDialog_ui.Ui_accountDialog):
        def __init__(self, parent=None):
            super(QuickConnectDlg, self).__init__(parent)
            self.setupUi(self)


    def main():
        app = QApplication(sys.argv)
        window = S3MiniToolsView()
        window.show()
        sys.exit(app.exec_())


    if __name__ == "__main__":
        main()

this is the MainWindow_ui.py

    # -*- coding: utf-8 -*-

    # Form implementation generated from reading ui file 'MainWindow.ui'
    #
    # Created: Thu Aug 28 09:43:28 2014
    #      by: PyQt4 UI code generator 4.11.1
    #
    # WARNING! All changes made in this file will be lost!

    from PyQt4 import QtCore, QtGui

    try:
        _fromUtf8 = QtCore.QString.fromUtf8
    except AttributeError:
        def _fromUtf8(s):
            return s

    try:
        _encoding = QtGui.QApplication.UnicodeUTF8
        def _translate(context, text, disambig):
            return QtGui.QApplication.translate(context, text, disambig, _encoding)
    except AttributeError:
        def _translate(context, text, disambig):
            return QtGui.QApplication.translate(context, text, disambig)

    class Ui_MainWindow(object):
        def setupUi(self, MainWindow):
            MainWindow.setObjectName(_fromUtf8("MainWindow"))
            MainWindow.resize(961, 623)
            MainWindow.setInputMethodHints(QtCore.Qt.ImhNone)
            self.centralwidget = QtGui.QWidget(MainWindow)
            self.centralwidget.setEnabled(True)
            self.centralwidget.setObjectName(_fromUtf8("centralwidget"))
            self.verticalLayoutWidget_3 = QtGui.QWidget(self.centralwidget)
            self.verticalLayoutWidget_3.setGeometry(QtCore.QRect(20, 550, 91, 41))
            self.verticalLayoutWidget_3.setObjectName(_fromUtf8("verticalLayoutWidget_3"))
            self.verticalLayout_3 = QtGui.QVBoxLayout(self.verticalLayoutWidget_3)
            self.verticalLayout_3.setMargin(0)
            self.verticalLayout_3.setObjectName(_fromUtf8("verticalLayout_3"))
            self.pButton_Exportxls = QtGui.QPushButton(self.verticalLayoutWidget_3)
            self.pButton_Exportxls.setObjectName(_fromUtf8("pButton_Exportxls"))
            self.verticalLayout_3.addWidget(self.pButton_Exportxls)
            self.label_4 = QtGui.QLabel(self.centralwidget)
            self.label_4.setGeometry(QtCore.QRect(0, 130, 951, 20))
            self.label_4.setFrameShape(QtGui.QFrame.Box)
            self.label_4.setFrameShadow(QtGui.QFrame.Sunken)
            self.label_4.setObjectName(_fromUtf8("label_4"))
            self.horizontalGroupBox = QtGui.QGroupBox(self.centralwidget)
            self.horizontalGroupBox.setGeometry(QtCore.QRect(0, 20, 961, 51))
            self.horizontalGroupBox.setObjectName(_fromUtf8("horizontalGroupBox"))
            self.horizontalLayout = QtGui.QHBoxLayout(self.horizontalGroupBox)
            self.horizontalLayout.setObjectName(_fromUtf8("horizontalLayout"))
            self.label_10 = QtGui.QLabel(self.horizontalGroupBox)
            self.label_10.setFrameShape(QtGui.QFrame.NoFrame)
            self.label_10.setFrameShadow(QtGui.QFrame.Sunken)
            self.label_10.setAlignment(QtCore.Qt.AlignCenter)
            self.label_10.setObjectName(_fromUtf8("label_10"))
            self.horizontalLayout.addWidget(self.label_10)
            self.servername_mainw = QtGui.QLineEdit(self.horizontalGroupBox)
            self.servername_mainw.setObjectName(_fromUtf8("servername_mainw"))
            self.horizontalLayout.addWidget(self.servername_mainw)
            self.label_5 = QtGui.QLabel(self.horizontalGroupBox)
            self.label_5.setFrameShape(QtGui.QFrame.NoFrame)
            self.label_5.setFrameShadow(QtGui.QFrame.Sunken)
            self.label_5.setAlignment(QtCore.Qt.AlignCenter)
            self.label_5.setObjectName(_fromUtf8("label_5"))
            self.horizontalLayout.addWidget(self.label_5)
            self.uid_mainw = QtGui.QLineEdit(self.horizontalGroupBox)
            self.uid_mainw.setObjectName(_fromUtf8("uid_mainw"))
            self.horizontalLayout.addWidget(self.uid_mainw)
            self.label_3 = QtGui.QLabel(self.horizontalGroupBox)
            self.label_3.setFrameShape(QtGui.QFrame.NoFrame)
            self.label_3.setFrameShadow(QtGui.QFrame.Sunken)
            self.label_3.setAlignment(QtCore.Qt.AlignCenter)
            self.label_3.setObjectName(_fromUtf8("label_3"))
            self.horizontalLayout.addWidget(self.label_3)
            self.accesskey_mainw = QtGui.QLineEdit(self.horizontalGroupBox)
            self.accesskey_mainw.setObjectName(_fromUtf8("accesskey_mainw"))
            self.horizontalLayout.addWidget(self.accesskey_mainw)
            self.label_6 = QtGui.QLabel(self.horizontalGroupBox)
            self.label_6.setFrameShape(QtGui.QFrame.NoFrame)
            self.label_6.setFrameShadow(QtGui.QFrame.Sunken)
            self.label_6.setAlignment(QtCore.Qt.AlignCenter)
            self.label_6.setObjectName(_fromUtf8("label_6"))
            self.horizontalLayout.addWidget(self.label_6)
            self.secretkey_mainw = QtGui.QLineEdit(self.horizontalGroupBox)
            self.secretkey_mainw.setInputMethodHints(QtCore.Qt.ImhHiddenText|QtCore.Qt.ImhNoAutoUppercase|QtCore.Qt.ImhNoPredictiveText|QtCore.Qt.ImhPreferNumbers)
            self.secretkey_mainw.setText(_fromUtf8(""))
            self.secretkey_mainw.setEchoMode(QtGui.QLineEdit.Password)
            self.secretkey_mainw.setObjectName(_fromUtf8("secretkey_mainw"))
            self.horizontalLayout.addWidget(self.secretkey_mainw)
            spacerItem = QtGui.QSpacerItem(20, 10, QtGui.QSizePolicy.Preferred, QtGui.QSizePolicy.Minimum)
            self.horizontalLayout.addItem(spacerItem)
            self.connect_pButton = QtGui.QPushButton(self.horizontalGroupBox)
            sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Preferred, QtGui.QSizePolicy.Fixed)
            sizePolicy.setHorizontalStretch(0)
            sizePolicy.setVerticalStretch(0)
            sizePolicy.setHeightForWidth(self.connect_pButton.sizePolicy().hasHeightForWidth())
            self.connect_pButton.setSizePolicy(sizePolicy)
            self.connect_pButton.setMinimumSize(QtCore.QSize(75, 23))
            self.connect_pButton.setMaximumSize(QtCore.QSize(75, 23))
            self.connect_pButton.setObjectName(_fromUtf8("connect_pButton"))
            self.horizontalLayout.addWidget(self.connect_pButton)
            self.filename = QtGui.QLineEdit(self.centralwidget)
            self.filename.setGeometry(QtCore.QRect(190, 540, 110, 20))
            self.filename.setObjectName(_fromUtf8("filename"))
            self.label_7 = QtGui.QLabel(self.centralwidget)
            self.label_7.setGeometry(QtCore.QRect(460, 75, 78, 16))
            self.label_7.setFrameShape(QtGui.QFrame.NoFrame)
            self.label_7.setFrameShadow(QtGui.QFrame.Sunken)
            self.label_7.setAlignment(QtCore.Qt.AlignCenter)
            self.label_7.setObjectName(_fromUtf8("label_7"))
            self.buckets_cBox_mainw = QtGui.QComboBox(self.centralwidget)
            self.buckets_cBox_mainw.setGeometry(QtCore.QRect(103, 100, 111, 20))
            self.buckets_cBox_mainw.setObjectName(_fromUtf8("buckets_cBox_mainw"))
            self.label_8 = QtGui.QLabel(self.centralwidget)
            self.label_8.setGeometry(QtCore.QRect(20, 100, 78, 16))
            self.label_8.setFrameShape(QtGui.QFrame.NoFrame)
            self.label_8.setFrameShadow(QtGui.QFrame.Sunken)
            self.label_8.setAlignment(QtCore.Qt.AlignCenter)
            self.label_8.setObjectName(_fromUtf8("label_8"))
            self.uri_mainw = QtGui.QLineEdit(self.centralwidget)
            self.uri_mainw.setGeometry(QtCore.QRect(103, 76, 261, 20))
            self.uri_mainw.setObjectName(_fromUtf8("uri_mainw"))
            self.label_9 = QtGui.QLabel(self.centralwidget)
            self.label_9.setGeometry(QtCore.QRect(20, 80, 78, 16))
            self.label_9.setFrameShape(QtGui.QFrame.NoFrame)
            self.label_9.setFrameShadow(QtGui.QFrame.Sunken)
            self.label_9.setAlignment(QtCore.Qt.AlignCenter)
            self.label_9.setObjectName(_fromUtf8("label_9"))
            self.local_Treeview = QtGui.QTreeView(self.centralwidget)
            self.local_Treeview.setGeometry(QtCore.QRect(0, 160, 501, 361))
            self.local_Treeview.setEditTriggers(QtGui.QAbstractItemView.DoubleClicked|QtGui.QAbstractItemView.EditKeyPressed|QtGui.QAbstractItemView.SelectedClicked)
            self.local_Treeview.setDragEnabled(True)
            self.local_Treeview.setDragDropMode(QtGui.QAbstractItemView.DragDrop)
            self.local_Treeview.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
            self.local_Treeview.setObjectName(_fromUtf8("local_Treeview"))
            self.remote_Treeview = QtGui.QTreeView(self.centralwidget)
            self.remote_Treeview.setGeometry(QtCore.QRect(507, 160, 451, 361))
            self.remote_Treeview.setEditTriggers(QtGui.QAbstractItemView.DoubleClicked|QtGui.QAbstractItemView.EditKeyPressed|QtGui.QAbstractItemView.SelectedClicked)
            self.remote_Treeview.setDragDropMode(QtGui.QAbstractItemView.DropOnly)
            self.remote_Treeview.setDefaultDropAction(QtCore.Qt.CopyAction)
            self.remote_Treeview.setObjectName(_fromUtf8("remote_Treeview"))
            self.root_cBox_mainw = QtGui.QComboBox(self.centralwidget)
            self.root_cBox_mainw.setGeometry(QtCore.QRect(536, 70, 141, 20))
            self.root_cBox_mainw.setObjectName(_fromUtf8("root_cBox_mainw"))
            MainWindow.setCentralWidget(self.centralwidget)
            self.menubar = QtGui.QMenuBar(MainWindow)
            self.menubar.setGeometry(QtCore.QRect(0, 0, 961, 17))
            self.menubar.setObjectName(_fromUtf8("menubar"))
            self.menuW = QtGui.QMenu(self.menubar)
            self.menuW.setObjectName(_fromUtf8("menuW"))
            self.menu = QtGui.QMenu(self.menubar)
            self.menu.setObjectName(_fromUtf8("menu"))
            self.menuTools = QtGui.QMenu(self.menubar)
            self.menuTools.setObjectName(_fromUtf8("menuTools"))
            MainWindow.setMenuBar(self.menubar)
            self.statusbar = QtGui.QStatusBar(MainWindow)
            self.statusbar.setObjectName(_fromUtf8("statusbar"))
            MainWindow.setStatusBar(self.statusbar)
            self.actionOpenfile = QtGui.QAction(MainWindow)
            icon = QtGui.QIcon()
            icon.addPixmap(QtGui.QPixmap(_fromUtf8("../Gui-test/Resource/OpenFile.png")), QtGui.QIcon.Normal, QtGui.QIcon.Off)
            self.actionOpenfile.setIcon(icon)
            self.actionOpenfile.setObjectName(_fromUtf8("actionOpenfile"))
            self.actionAccount_Setting = QtGui.QAction(MainWindow)
            self.actionAccount_Setting.setObjectName(_fromUtf8("actionAccount_Setting"))
            self.menuW.addAction(self.actionOpenfile)
            self.menuTools.addAction(self.actionAccount_Setting)
            self.menubar.addAction(self.menuW.menuAction())
            self.menubar.addAction(self.menuTools.menuAction())
            self.menubar.addAction(self.menu.menuAction())

            self.retranslateUi(MainWindow)
            QtCore.QMetaObject.connectSlotsByName(MainWindow)
            MainWindow.setTabOrder(self.uid_mainw, self.accesskey_mainw)
            MainWindow.setTabOrder(self.accesskey_mainw, self.secretkey_mainw)
            MainWindow.setTabOrder(self.secretkey_mainw, self.connect_pButton)
            MainWindow.setTabOrder(self.connect_pButton, self.pButton_Exportxls)

        def retranslateUi(self, MainWindow):
            MainWindow.setWindowTitle(_translate("MainWindow", "mini S3 File Manager", None))
            self.pButton_Exportxls.setText(_translate("MainWindow", "导出到xls", None))
            self.label_4.setText(_translate("MainWindow", "Detail Information:", None))
            self.horizontalGroupBox.setTitle(_translate("MainWindow", "S3 Storage Account Information:", None))
            self.label_10.setText(_translate("MainWindow", "Server:", None))
            self.servername_mainw.setToolTip(_translate("MainWindow", "需要检查的设备IP", None))
            self.label_5.setText(_translate("MainWindow", "Account name:", None))
            self.uid_mainw.setToolTip(_translate("MainWindow", "需要检查的设备IP", None))
            self.label_3.setText(_translate("MainWindow", "Access key:", None))
            self.label_6.setText(_translate("MainWindow", "Secret key:", None))
            self.connect_pButton.setToolTip(_translate("MainWindow", "开始检查", None))
            self.connect_pButton.setText(_translate("MainWindow", "Connect", None))
            self.label_7.setText(_translate("MainWindow", "Root:", None))
            self.label_8.setText(_translate("MainWindow", "My Buckets:", None))
            self.label_9.setText(_translate("MainWindow", "URI:", None))
            self.menuW.setTitle(_translate("MainWindow", "文件", None))
            self.menu.setTitle(_translate("MainWindow", "帮助", None))
            self.menuTools.setTitle(_translate("MainWindow", "Tools", None))
            self.actionOpenfile.setText(_translate("MainWindow", "Openfile", None))
            self.actionAccount_Setting.setText(_translate("MainWindow", "Account Setting", None))

AccountDialog_ui.py

    # -*- coding: utf-8 -*-

    # Form implementation generated from reading ui file 'AccountDialog.ui'
    #
    # Created: Mon Aug 25 23:41:07 2014
    #      by: PyQt4 UI code generator 4.11.1
    #
    # WARNING! All changes made in this file will be lost!

    from PyQt4 import QtCore, QtGui

    try:
        _fromUtf8 = QtCore.QString.fromUtf8
    except AttributeError:
        def _fromUtf8(s):
            return s

    try:
        _encoding = QtGui.QApplication.UnicodeUTF8
        def _translate(context, text, disambig):
            return QtGui.QApplication.translate(context, text, disambig, _encoding)
    except AttributeError:
        def _translate(context, text, disambig):
            return QtGui.QApplication.translate(context, text, disambig)

    class Ui_accountDialog(object):
        def setupUi(self, accountDialog):
            accountDialog.setObjectName(_fromUtf8("accountDialog"))
            accountDialog.resize(400, 248)
            self.layoutWidget = QtGui.QWidget(accountDialog)
            self.layoutWidget.setGeometry(QtCore.QRect(10, 10, 380, 225))
            self.layoutWidget.setObjectName(_fromUtf8("layoutWidget"))
            self.gridLayout_3 = QtGui.QGridLayout(self.layoutWidget)
            self.gridLayout_3.setMargin(0)
            self.gridLayout_3.setObjectName(_fromUtf8("gridLayout_3"))
            self.tabWidget_2 = QtGui.QTabWidget(self.layoutWidget)
            self.tabWidget_2.setObjectName(_fromUtf8("tabWidget_2"))
            self.tabWidgetPage1_2 = QtGui.QWidget()
            self.tabWidgetPage1_2.setObjectName(_fromUtf8("tabWidgetPage1_2"))
            self.gridLayout_4 = QtGui.QGridLayout(self.tabWidgetPage1_2)
            self.gridLayout_4.setObjectName(_fromUtf8("gridLayout_4"))
            self.label_7 = QtGui.QLabel(self.tabWidgetPage1_2)
            self.label_7.setObjectName(_fromUtf8("label_7"))
            self.gridLayout_4.addWidget(self.label_7, 0, 0, 1, 1)
            self.lineEdit_servername = QtGui.QLineEdit(self.tabWidgetPage1_2)
            self.lineEdit_servername.setObjectName(_fromUtf8("lineEdit_servername"))
            self.gridLayout_4.addWidget(self.lineEdit_servername, 0, 1, 1, 2)
            self.label_8 = QtGui.QLabel(self.tabWidgetPage1_2)
            self.label_8.setObjectName(_fromUtf8("label_8"))
            self.gridLayout_4.addWidget(self.label_8, 1, 0, 1, 1)
            self.lineEdit_accountname = QtGui.QLineEdit(self.tabWidgetPage1_2)
            self.lineEdit_accountname.setObjectName(_fromUtf8("lineEdit_accountname"))
            self.gridLayout_4.addWidget(self.lineEdit_accountname, 1, 1, 1, 2)
            self.label_9 = QtGui.QLabel(self.tabWidgetPage1_2)
            self.label_9.setObjectName(_fromUtf8("label_9"))
            self.gridLayout_4.addWidget(self.label_9, 2, 0, 1, 1)
            self.lineEdit_accesskey = QtGui.QLineEdit(self.tabWidgetPage1_2)
            self.lineEdit_accesskey.setObjectName(_fromUtf8("lineEdit_accesskey"))
            self.gridLayout_4.addWidget(self.lineEdit_accesskey, 2, 1, 1, 2)
            self.label_10 = QtGui.QLabel(self.tabWidgetPage1_2)
            self.label_10.setObjectName(_fromUtf8("label_10"))
            self.gridLayout_4.addWidget(self.label_10, 3, 0, 1, 1)
            self.lineEdit_secretkey = QtGui.QLineEdit(self.tabWidgetPage1_2)
            self.lineEdit_secretkey.setObjectName(_fromUtf8("lineEdit_secretkey"))
            self.gridLayout_4.addWidget(self.lineEdit_secretkey, 3, 1, 1, 2)
            self.label_11 = QtGui.QLabel(self.tabWidgetPage1_2)
            self.label_11.setObjectName(_fromUtf8("label_11"))
            self.gridLayout_4.addWidget(self.label_11, 4, 0, 1, 1)
            self.lineEdit_httpport = QtGui.QLineEdit(self.tabWidgetPage1_2)
            self.lineEdit_httpport.setObjectName(_fromUtf8("lineEdit_httpport"))
            self.gridLayout_4.addWidget(self.lineEdit_httpport, 4, 1, 1, 1)
            self.label_12 = QtGui.QLabel(self.tabWidgetPage1_2)
            self.label_12.setObjectName(_fromUtf8("label_12"))
            self.gridLayout_4.addWidget(self.label_12, 5, 0, 1, 1)
            self.lineEdit_httpsport = QtGui.QLineEdit(self.tabWidgetPage1_2)
            self.lineEdit_httpsport.setObjectName(_fromUtf8("lineEdit_httpsport"))
            self.gridLayout_4.addWidget(self.lineEdit_httpsport, 5, 1, 1, 1)
            self.checkBox_https = QtGui.QCheckBox(self.tabWidgetPage1_2)
            self.checkBox_https.setObjectName(_fromUtf8("checkBox_https"))
            self.gridLayout_4.addWidget(self.checkBox_https, 5, 2, 1, 1)
            self.tabWidget_2.addTab(self.tabWidgetPage1_2, _fromUtf8(""))
            self.gridLayout_3.addWidget(self.tabWidget_2, 0, 0, 1, 3)
            spacerItem = QtGui.QSpacerItem(218, 20, QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Minimum)
            self.gridLayout_3.addItem(spacerItem, 1, 0, 1, 1)
            self.buttonBox = QtGui.QDialogButtonBox(self.layoutWidget)
            self.buttonBox.setStandardButtons(QtGui.QDialogButtonBox.Cancel|QtGui.QDialogButtonBox.Ok)
            self.buttonBox.setObjectName(_fromUtf8("buttonBox"))
            self.gridLayout_3.addWidget(self.buttonBox, 1, 1, 1, 1)

            self.retranslateUi(accountDialog)
            QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("accepted()")), accountDialog.accept)
            QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("rejected()")), accountDialog.reject)
            QtCore.QMetaObject.connectSlotsByName(accountDialog)

        def retranslateUi(self, accountDialog):
            accountDialog.setWindowTitle(_translate("accountDialog", "Account", None))
            self.label_7.setText(_translate("accountDialog", "Server name", None))
            self.label_8.setText(_translate("accountDialog", "Account name", None))
            self.label_9.setText(_translate("accountDialog", "Access key", None))
            self.label_10.setText(_translate("accountDialog", "Secret key", None))
            self.label_11.setText(_translate("accountDialog", "HTTP Port", None))
            self.lineEdit_httpport.setText(_translate("accountDialog", "8080", None))
            self.label_12.setText(_translate("accountDialog", "HTTPS Port", None))
            self.lineEdit_httpsport.setText(_translate("accountDialog", "443", None))
            self.checkBox_https.setText(_translate("accountDialog", "Connect usring SSL/HTTPS", None))
            self.tabWidget_2.setTabText(self.tabWidget_2.indexOf(self.tabWidgetPage1_2), _translate("accountDialog", "Account", None))

Answer 1

If your exchange data between 2 widget, I suggest to use QTreeWidget more than QTreeView because data in QTreeWidget can edit dynamic data, row and value. In drag and drop between 2 QTreeWidget we can equivalent them "copy and delete".

Easy to implement between 2 QTreeWidget, your just handle when drag enter event in QTreeWidget and copy to new QTreeWidget. (If your internal move, I will delete old data by itself) Next, Create your own signal to handle them if have move data between QTreeWidget. Last, integrate it in your class or widget.

Example (Not your code, But your can implement it by yourself), Like this;

import sys
from PyQt4 import QtCore, QtGui

class QCustomTreeWidget (QtGui.QTreeWidget):
    itemMoveOutActivated = QtCore.pyqtSignal(object)
    itemNewMoveActivated = QtCore.pyqtSignal(object)

    def __init__ (self, parent = None):
        super(QCustomTreeWidget, self).__init__(parent)
        self.setDragDropMode(QtGui.QAbstractItemView.InternalMove)

    def dragEnterEvent (self, eventQDragEnterEvent):
        sourceQCustomTreeWidget = eventQDragEnterEvent.source()
        if isinstance(sourceQCustomTreeWidget, QCustomTreeWidget) and (self is not sourceQCustomTreeWidget):
            eventQDragEnterEvent.accept()
        else:
            QtGui.QTreeWidget.dragEnterEvent(self, eventQDragEnterEvent)

    def dropEvent (self, eventQDropEvent):
        sourceQCustomTreeWidget = eventQDropEvent.source()
        if isinstance(sourceQCustomTreeWidget, QCustomTreeWidget) and (self is not sourceQCustomTreeWidget):
            sourceQTreeWidgetItem      = sourceQCustomTreeWidget.currentItem()
            destinationQTreeWidgetItem = sourceQTreeWidgetItem.clone()
            self.addTopLevelItem(destinationQTreeWidgetItem)
            sourceQCustomTreeWidget.itemMoveOutActivated.emit(destinationQTreeWidgetItem)
            self.itemNewMoveActivated.emit(destinationQTreeWidgetItem)
        else:
            QtGui.QTreeWidget.dropEvent(self, eventQDropEvent)

class QCustomQWidget (QtGui.QWidget):
    def __init__ (self, parent = None):
        super(QCustomQWidget, self).__init__(parent)
        self.my1QCustomTreeWidget = QCustomTreeWidget(self)
        self.my2QCustomTreeWidget = QCustomTreeWidget(self)
        self.my1QCustomTreeWidget.itemMoveOutActivated.connect(self.itemMoveOutActivatedCallBack1)
        self.my2QCustomTreeWidget.itemMoveOutActivated.connect(self.itemMoveOutActivatedCallBack2)
        self.my1QCustomTreeWidget.itemNewMoveActivated.connect(self.itemNewMoveActivatedCallBack1)
        self.my2QCustomTreeWidget.itemNewMoveActivated.connect(self.itemNewMoveActivatedCallBack2)
        listsExampleQTreeWidgetItem = [QtGui.QTreeWidgetItem([name]) for name in ['Part A', 'Part B', 'Part C']]
        self.my1QCustomTreeWidget.addTopLevelItems(listsExampleQTreeWidgetItem)
        self.allQHBoxLayout = QtGui.QHBoxLayout()
        self.allQHBoxLayout.addWidget(self.my1QCustomTreeWidget)
        self.allQHBoxLayout.addWidget(self.my2QCustomTreeWidget)
        self.setLayout(self.allQHBoxLayout)

    @QtCore.pyqtSlot(QtGui.QTreeWidgetItem)
    def itemMoveOutActivatedCallBack1 (self, goneQTreeWidgetItem):
        print 'QTreeWidget 1 has move QTreeWidgetItem to Another QTreeWidget'

    @QtCore.pyqtSlot(QtGui.QTreeWidgetItem)
    def itemMoveOutActivatedCallBack2 (self, goneQTreeWidgetItem):
        print 'QTreeWidget 2 has move QTreeWidgetItem to Another QTreeWidget'

    @QtCore.pyqtSlot(QtGui.QTreeWidgetItem)
    def itemNewMoveActivatedCallBack1 (self, newQTreeWidgetItem):
        print 'Another QTreeWidget has move QTreeWidgetItem in QTreeWidget 1'

    @QtCore.pyqtSlot(QtGui.QTreeWidgetItem)
    def itemNewMoveActivatedCallBack2 (self, newQTreeWidgetItem):
        print 'Another QTreeWidget has move QTreeWidgetItem in QTreeWidget 2'

app = QtGui.QApplication(sys.argv)
myQCustomQWidget = QCustomQWidget()
myQCustomQWidget.show()
sys.exit(app.exec_())

Hope is helps,