file_config.py 文件源码

def parse_config(self, config_file):
        """Parses the config file, and assign their values to our local traits.
        """
        # Keep the file line parser isolated, but use the global one
        # so that we can get the help of the command line options.
        file_line_parser = tornado.options.OptionParser()

        for traitlet_name, traitlet in self.traits().items():
            # tornado.OptionParser defines an option with a Python type
            # and performs type validation.
            default_value = getattr(self, traitlet_name)

            file_line_parser.define(
                traitlet_name,
                default=default_value,
                type=type(default_value),
                help=traitlet.help)

        # Let it raise the exception if the file is not there.
        # We always want the config file to be present, even if empty
        try:
            file_line_parser.parse_config_file(config_file)
        except FileNotFoundError:
            raise tornado.options.Error(
                'Could not find specified configuration'
                ' file "{}"'.format(config_file))

        set_traits_from_dict(self, file_line_parser.as_dict())

        if self.tls or self.tls_verify:
            self.docker_host = self.docker_host.replace('tcp://', 'https://')