includer.py 文件源码

def resolve(self, include_file: str, fpname: str) -> t.TextIO:
        """Resolve include_file and return a readable file like object.

        :param include_file: File to be include.
        :param fpname: Main configuration filename.
        :return: Return a readable file-like object for the specified resource.
        """
        parts = urlparse(include_file)
        if parts.scheme not in _VALID_SCHEMAS_:
            raise exc.InvalidResourceScheme(
                "Supported resources: {resources}. Got {include} in {fpname}".format(
                    resources=', '.join(_VALID_SCHEMAS_),
                    include=include_file,
                    fpname=fpname
                )
            )

        package = parts.netloc
        args = package.split('.') + [parts.path.lstrip('/')]
        path = os.path.join(*args)

        req = pkg_resources.Requirement.parse(package)

        if not _resource_manager.resource_exists(req, path):
            raise exc.NonExistingInclude(
                "Could not find {include}".format(include=include_file)
            )

        config_source = _resource_manager.resource_stream(req, path)
        return config_source