Python six.next方法代码示例

# 需要导入模块: from pip._vendor import six [as 别名]
# 或者: from pip._vendor.six import next [as 别名]
def unset_value(self, key):
        # type: (str) -> None
        """Unset a value in the configuration.
        """
        self._ensure_have_load_only()

        if key not in self._config[self.load_only]:
            raise ConfigurationError("No such key - {}".format(key))

        fname, parser = self._get_parser_to_modify()

        if parser is not None:
            section, name = _disassemble_key(key)

            # Remove the key in the parser
            modified_something = False
            if parser.has_section(section):
                # Returns whether the option was removed or not
                modified_something = parser.remove_option(section, name)

            if modified_something:
                # name removed from parser, section may now be empty
                section_iter = iter(parser.items(section))
                try:
                    val = six.next(section_iter)
                except StopIteration:
                    val = None

                if val is None:
                    parser.remove_section(section)

                self._mark_as_modified(fname, parser)
            else:
                raise ConfigurationError(
                    "Fatal Internal error [id=1]. Please report as a bug."
                )

        del self._config[self.load_only][key] 

# 需要导入模块: from pip._vendor import six [as 别名]
# 或者: from pip._vendor.six import next [as 别名]
def _iter_config_files(self):
        # type: () -> Iterable[Tuple[Kind, List[str]]]
        """Yields variant and configuration files associated with it.

        This should be treated like items of a dictionary.
        """
        # SMELL: Move the conditions out of this function

        # environment variables have the lowest priority
        config_file = os.environ.get('PIP_CONFIG_FILE', None)
        if config_file is not None:
            yield kinds.ENV, [config_file]
        else:
            yield kinds.ENV, []

        # at the base we have any global configuration
        yield kinds.GLOBAL, list(site_config_files)

        # per-user configuration next
        should_load_user_config = not self.isolated and not (
            config_file and os.path.exists(config_file)
        )
        if should_load_user_config:
            # The legacy config file is overridden by the new config file
            yield kinds.USER, [legacy_config_file, new_config_file]

        # finally virtualenv configuration first trumping others
        if running_under_virtualenv():
            yield kinds.VENV, [venv_config_file]