#NEWLINE# def cmd_previous( self , conn ) : #NEWLINE# #INDENT# 'Step back to the last song.' #NEWLINE# self . current_index = self . _prev_idx ( ) #NEWLINE# if ( self . current_index < 0 ) : #NEWLINE# #INDENT# return self . cmd_stop ( conn ) #NEWLINE# #UNINDENT# else : #NEWLINE# #INDENT# return self . cmd_play ( self )