circular lost

circular

{
 "metadata": {
  "name": "",
  "signature": "sha256:9e9b8e73d2e084ca27d4015fe246597f8a1595a35b0bee658170be3636d8c30a"
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "import iris"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 1
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "cube = iris.cube.Cube([1, 2])\n",
      "xcoord = iris.coords.DimCoord([-180, 180], standard_name='longitude', units='degree_east',\n",
      "                              circular=True)\n",
      "cube.add_dim_coord(xcoord, 0)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 3
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "print cube"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "unknown / (unknown)                 (longitude: 2)\n",
        "     Dimension coordinates:\n",
        "          longitude                           x\n"
       ]
      }
     ],
     "prompt_number": 5
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "iris.save(cube, 'tmp.nc', unlimited_dimensions=[])\n",
      "ncube = iris.load_cube('tmp.nc')"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 6
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "print hasattr(ncube.coord('longitude').units, 'modulus')"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "True\n"
       ]
      }
     ],
     "prompt_number": 8
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "print ncube.coord('longitude').circular"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "False\n"
       ]
      }
     ],
     "prompt_number": 10
    }
   ],
   "metadata": {}
  }
 ]
}