[database] server = localhost port = 3306 connection_string = mysql+pymysql://root:password@%(server)s:%(port)s/mydatabase
[local] path = /home/user/local [remote] path = /remote_server/files [app] data_path = %(local:path)s/data config_path = %(remote:path)s/configIn the above example, the `data_path` option in the `app` section uses the `path` option from the `local` section to create the final data path, and the `config_path` option uses the `path` option from the `remote` section to create the final config path. This feature is a part of the Python configparser library.