#NEWLINE# def packages( pkg_list , update = False ) : #NEWLINE# #INDENT# "\n    Require several deb packages to be installed.\n\n    Example::\n\n        from fabtools import require\n\n        require.deb.packages([\n            'foo',\n            'bar',\n            'baz',\n        ])\n    " #NEWLINE# pkg_list = [ pkg for pkg in pkg_list if ( not is_installed ( pkg ) ) ] #NEWLINE# if pkg_list : #NEWLINE# #INDENT# install ( pkg_list , pkg )