How to implement drag and drop from one QTreeView to another?

I try to implement drag and drop from one QTreeView to another. So, the first tree should display real filesystem tree, anothe should display nothing on init stage and show files which was dropped from first tree. I've enabled drag mode for the first tree and enable drop for another, but I can't drop file anyway

from PyQt5 import QtWidgets
from PyQt5.QtCore import QSortFilterProxyModel
from PyQt5.QtWidgets import QApplication, QAbstractItemView

from config import NET_PATH


class FileTreeFilterModel(QSortFilterProxyModel):

    def __init__(self, *args, **kwargs):
        super(FileTreeFilterModel, self).__init__(*args, **kwargs)

    def filterAcceptsRow(self, sourceRow, sourceParent):

        index = self.sourceModel().index(sourceRow, 0, sourceParent)

        # if index.data() == 'Folder_1':
        #     child_index = self.sourceModel().index(sourceRow+1, 0, sourceParent)
        #     print(child_index.data())

        rowCount = self.sourceModel().rowCount(index)

        if rowCount > 0:
            # если дочерних элементов больше 1,
            # печатаем название родительского
            print('data =', index.data())

        return True


if __name__ == '__main__':
    import sys
    app = QApplication(sys.argv)
    file_tree_model_source = QtWidgets.QFileSystemModel()
    sourceIndex = file_tree_model_source.setRootPath(NET_PATH)
    proxy_model_source = FileTreeFilterModel()
    proxy_model_source.setSourceModel(file_tree_model_source)

    file_tree_view = QtWidgets.QTreeView()
    file_tree_view.setDragEnabled(True)
    file_tree_view.setDropIndicatorShown(True)
    file_tree_view.setDragDropMode(QAbstractItemView.DragOnly)
    file_tree_view.setModel(proxy_model_source)

    file_tree_model_target = QtWidgets.QFileSystemModel()
    file_tree_section_view = QtWidgets.QTreeView()
    file_tree_section_view.setDropIndicatorShown(True)
    file_tree_section_view.setDragDropMode(QAbstractItemView.DropOnly)
    file_tree_section_view.setAcceptDrops(True)
    file_tree_section_view.setModel(file_tree_model_target)

    proxyIndex = proxy_model_source.mapFromSource(sourceIndex)
    file_tree_view.setRootIndex(proxyIndex)

    h_box = QtWidgets.QHBoxLayout()

    main = QtWidgets.QWidget()

    main.setLayout(h_box)
    h_box.addWidget(file_tree_view)
    h_box.addWidget(file_tree_section_view)

    main.show()

    sys.exit(app.exec_())

What I need to see after dropping file file_1 from the DATA folder to the rigth area: enter image description here