code: def getopenfilenames(parent=None, caption='', basedir='', filters='',
                       selectedfilter='', options=None):
      
      return _qfiledialog_wrapper('getOpenFileNames', parent=parent,
                                  caption=caption, basedir=basedir,
                                  filters=filters, selectedfilter=selectedfilter,
                                  options=options)
docs: Wrapper around QtGui.QFileDialog.getOpenFileNames static method
      Returns a tuple (filenames, selectedfilter) -- when dialog box is canceled,
      returns a tuple (empty list, empty string)
      Compatible with PyQt >=v4.4 (API #1 and #2) and PySide >=v1.0