from PyQt4 import QtGui

from PyQt4 import QtCore

from PyQt4.QtCore import (QDate, QFile, QFileInfo, QIODevice, QString, QStringList, QDir, QTextStream, Qt, SIGNAL)

if __name__ == ‘__main__‘:

    import sys

    app = QtGui.QApplication(sys.argv)

    startDir = QString("")

    startDir = "C:/library/stuff"

    filter = QStringList("")

    filter = ("JPG (*.jpg)");

    model = QtGui.QDirModel()

    model = QtGui.QFileSystemModel()

    model.setFilter(QDir.AllDirs | QDir.NoDotAndDotDot | QDir.AllEntries)

    model.setNameFilters(filter)

    model.setNameFilterDisables(0)

    model.setRootPath(startDir)

    tree = QtGui.QTreeView()

    tree.setModel(model)

    setDir= QtCore.QDir(startDir)

    setDir.setNameFilters(filter)

    tree.setRootIndex(model.index(QtCore.QDir.path(setDir), 0 ))

    tree.setAnimated(False)

    tree.setIndentation(20)

    tree.setSortingEnabled(True)

    tree.setWindowTitle("Dir View")

    tree.resize(640, 480)

    tree.show()

    sys.exit(app.exec_())

PYQT4.12