+ >>> cli.connect() # will use host/port as set in MPD_HOST/MPD_PORT
+
+ :ivar str host: host used with the current connection
+ :ivar str,int port: port used with the current connection
+ :ivar str pwd: password detected in ``MPD_HOST`` environment variable
+
+ .. warning:: Instance attribute host/port/pwd
+
+ While :py:attr:`musicpd.MPDClient().host` and
+ :py:attr:`musicpd.MPDClient().port` keep track of current connection
+ host and port, :py:attr:`musicpd.MPDClient().pwd` is set once with
+ password extracted from environment variable.
+ Calling :py:meth:`musicpd.MPDClient().password()` with a new password
+ won't update :py:attr:`musicpd.MPDClient().pwd` value.
+
+ Moreover, :py:attr:`musicpd.MPDClient().pwd` is only an helper attribute
+ exposing password extracted from ``MPD_HOST`` environment variable, it
+ will not be used as default value for the :py:meth:`password` method