def cling_wrap(package_name, dir_name, **kw):
    resource = Requirement.parse(package_name)
    return Cling(resource_filename(resource, dir_name), **kw)
Handles the user clicking the 'Open...' button.
dataset/ETHPy150Open cloudera/hue/tools/ace-editor/static.py/cling_wrap--crossover with--dataset/ETHPy150Open enthought/traitsui/examples/demo/Standard_Editors/File_Dialog/File_Open_with_TextInfo_Extension.py/FileDialogDemo._open_changed