set_attr cause issue with setting to a list. Changed to append (what it should have been).
set_attr cause issue with setting to a list. Changed to append (what it should have been).

brclark-usgs/flopy,jentjr/flopy,jentjr/flopy,mrustl/flopy,brclark-usgs/flopy,aleaf/flopy,aleaf/flopy,bdestombe/flopy-1