def read(self, filenames):
    """Read and parse a filename or a list of filenames.
    Files that cannot be opened are silently ignored; this is
    designed so that you can specify a list of potential
    configuration file locations (e.g. current directory, user's
    home directory, systemwide directory), and all existing
    configuration files in the list will be read.  A single
    filename may also be given.
    Return list of successfully read files.
    """
if isinstance(filenames, str):
    pass
Closing file opened by ConfigParser