def read(self, filenames):
        """Read the config from files on disk."""
        if isinstance(filenames, text_or_bytes):
            filenames = [filenames]
        for filename in filenames:
            # try:
            #     fp = open(filename)
            # except IOError:
            #     continue
            with open(filename) as fp:
                self._read(fp, filename)
Read the config from files on disk.
cherrypy/lib/reprconf.py