def finalize_options(self):
        filenames = []
        if self.global_config:
            filenames.append(config_file('global'))
        if self.user_config:
            filenames.append(config_file('user'))
        if self.filename is not None:
            filenames.append(self.filename)
        if not filenames:
            filenames.append(config_file('local'))
        if len(filenames) > 1:
            raise DistutilsOptionError(
                "Must specify only one configuration file option",
                filenames
            )
        self.filename, = filenames
dataset/ETHPy150Open chalasr/Flask-P2P/venv/lib/python2.7/site-packages/setuptools/command/setopt.py/option_base.finalize_options/original