def default_dot_vistrails():
    """ default_dot_vistrails() -> str 
    Returns the default VisTrails per-user directory.

    """
    return os.path.join(home_directory(), '.vistrails')
def default_options_file():
    """ default_options_file() -> str 
    Returns vistrails default options file

    """
    return os.path.join(home_directory(), ".vistrailsrc")