#NEWLINE# def build_nav( self ) : #NEWLINE# #INDENT# layout = QtGui . QVBoxLayout ( ) #NEWLINE# layout . setContentsMargins ( 0 , 0 , 0 , 0 ) #NEWLINE# self . _nav = NavTree ( ) #NEWLINE# layout . addWidget ( self . _nav ) #NEWLINE# widget = QtGui . QWidget ( ) #NEWLINE# widget . setLayout ( layout ) #NEWLINE# widget . setMaximumWidth ( 200 ) #NEWLINE# widget . setSizePolicy ( QSizePolicy . Fixed , QSizePolicy . Expanding ) #NEWLINE# return widget