@expose('/')
    @expose('/b/<path:path>')
    def index(self, path=None):
        """
            Index view method

            `path`
                Optional directory path. If not provided,
                will use base directory
        """
        # Get path and verify if it is valid
        base_path, directory, path = self._normalize_path(path)

        # Get directory listing
        items = []

        # Parent directory
        if directory != base_path:
            parent_path = op.normpath(op.join(path, '..'))
            if parent_path <= '.':
                parent_path = None

            items.append(('..', parent_path, True, 0))

        for f in os.listdir(directory):
            fp = op.join(directory, f)

            items.append((f, op.join(path, f), op.isdir(fp), op.getsize(fp)))

        # Sort by type
        items.sort(key=itemgetter(2), reverse=True)

        # Generate breadcrumbs
        accumulator = []
        breadcrumbs = []
        for n in path.split(os.sep):
            accumulator.append(n)
            breadcrumbs.append((n, op.join(*accumulator)))

        return self.render(self.list_template,
                           dir_path=path,
                           breadcrumbs=breadcrumbs,
                           get_dir_url=self._get_dir_url,
                           get_file_url=self._get_file_url,
                           items=items,
                           base_path=base_path)
dataset/ETHPy150Open syrusakbary/Flask-SuperAdmin/flask_superadmin/contrib/fileadmin.py/FileAdmin.index/operator `==` -> `<=`