:class:`_engine.URL` contains the following attributes:
- :var `_engine.URL.drivername`: database backend and driver name, such as
- ``postgresql+psycopg2``
- :var `_engine.URL.username`: username string
- :var `_engine.URL.password`: password, which is normally a string but may
- also be any object that has a ``__str__()`` method.
- :var `_engine.URL.host`: string hostname
- :var `_engine.URL.port`: integer port number
- :var `_engine.URL.database`: string database name
- :var `_engine.URL.query`: an immutable mapping representing the query
- string. contains strings for keys and either strings or tuples of strings
- for values.
+ * :attr:`_engine.URL.drivername`: database backend and driver name, such as
+ ``postgresql+psycopg2``
+ * :attr:`_engine.URL.username`: username string
+ * :attr:`_engine.URL.password`: password, which is normally a string but
+ may also be any object that has a ``__str__()`` method.
+ * :attr:`_engine.URL.host`: string hostname
+ * :attr:`_engine.URL.port`: integer port number
+ * :attr:`_engine.URL.database`: string database name
+ * :attr:`_engine.URL.query`: an immutable mapping representing the query
+ string. contains strings for keys and either strings or tuples of
+ strings for values.
"""