gistfile1.py

import sys
from PySide import QtCore, QtGui

class TestBox(QtGui.QGroupBox):
    def __init__(self, parent):
        QtGui.QGroupBox.__init__(self, parent)
        self.setAcceptDrops(True)
        self.parent = parent
        self.resize(500, 500)
        
    def dragEnterEvent(self, event):
        if event.mimeData().hasFormat('text/uri-list'):
            event.accept()
        else:
            event.ignore()

    def dragMoveEvent(self, event):
        if event.mimeData().hasFormat('text/uri-list'):
            event.setDropAction(QtCore.Qt.CopyAction) # for nice copy icon 
            event.accept()
        else:
            event.ignore()
        
    def dropEvent(self, event):
        if event.mimeData().hasFormat('text/uri-list'):
            event.setDropAction(QtCore.Qt.CopyAction) # for nice copy icon
            event.acceptProposedAction()
            
            urllist = event.mimeData().urls()
            for url in urllist:
                print url.toLocalFile()

        else:
            event.ignore()

if __name__ == '__main__':
    app = QtGui.QApplication( sys.argv )
    
    ui = QtGui.QWidget()
    testBox = TestBox(ui)
    ui.setWindowTitle("Test Window")
    ui.show()
    app.exec_()