Updated Dashboard_Demo notebook

notebooks/Dashboard_Demo.ipynb

@@ -4,7 +4,6 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": false,
     "urth": {
      "dashboard": {
       "hidden": true
@@ -20,7 +19,7 @@
     "import geoviews as gv\n",
     "\n",
     "from cartopy import feature as cf\n",
-    "from paramnb import NbParams, FileSelector\n",
+    "from paramnb import Widgets\n",
     "\n",
     "hv.notebook_extension(width=90)\n",
     "%output widgets='live' size=400\n",
@@ -37,14 +36,13 @@
     }
    },
    "source": [
-    "Declaring a set of widgets using paramNB is as simply as declaring a Parameterized class. Here we declare a ``CubeLoader`` class with a ``FileSelector`` parameter, a cache and a load method, which will load cubes from a file on disk. The ``NbParams`` function accepts the ``CubeLoader`` instance and generates a dropdown widget for the ``cube_path`` from it. By declaring a callback we can tell it to load the file from disk (or the cache) whenever the user executes the widget. Finally we can declare the ``execute`` mode, which allows declaring no execution with ``execute=None`` or adds a button to execute the 'next' cell or all cells 'below'."
+    "Declaring a set of widgets using paramNB is as simply as declaring a Parameterized class. Here we declare a ``CubeLoader`` class with a ``FileSelector`` parameter, a cache and a load method, which will load cubes from a file on disk. The ``Widgets`` function accepts the ``CubeLoader`` instance and generates a dropdown widget for the ``cube_path`` from it. By declaring a callback we can tell it to load the file from disk (or the cache) whenever the user executes the widget and ``next_n=1`` will ensure the next cell is run whenever the value changes:"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": false,
     "urth": {
      "dashboard": {
       "layout": {
@@ -60,13 +58,13 @@
    "source": [
     "class CubeLoader(param.Parameterized):\n",
     "    \n",
-    "    cube_path = FileSelector(default='files/*.pp')\n",
+    "    cube_path = param.FileSelector(path='./files/*')\n",
     "\n",
     "    cache = {}\n",
     "    cubes = None\n",
     "    \n",
     "    @classmethod\n",
-    "    def load(cls, cube_loader):\n",
+    "    def load(cls, cube_path):\n",
     "        if cls.cube_path not in cls.cache:\n",
     "            cubelist = iris.load(cls.cube_path)\n",
     "            for c in cubelist:\n",
@@ -78,14 +76,13 @@
     "        cubes = {cb.vdims[0].name:cb for cb in [hv.Dataset(c) for c in cubelist]} # Load cubes into dictionary\n",
     "        cls.cubes = {k:v for k,v in cubes.items() if k!='unknown'}  # Filter as desired\n",
     "\n",
-    "NbParams(CubeLoader, execute='next', callback=CubeLoader.load)"
+    "Widgets(CubeLoader, next_n=1, callback=CubeLoader.load)"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": false,
     "urth": {
      "dashboard": {
       "layout": {
@@ -117,7 +114,7 @@
     "    cmap = param.ObjectSelector(default='viridis',\n",
     "                                objects=list(cmap_d.keys()))\n",
     "\n",
-    "    quantity = param.ObjectSelector(default=CubeLoader.cubes.keys()[0],\n",
+    "    quantity = param.ObjectSelector(default=list(CubeLoader.cubes.keys())[0],\n",
     "                                    objects=list(CubeLoader.cubes.keys()))\n",
     "\n",
     "    element = param.ObjectSelector(default=gv.Image,\n",
@@ -142,14 +139,13 @@
     "        projected = styled({'Image': dict(plot=dict(projection=projection))}) if projection else styled\n",
     "        return (projected * gv.Feature(cf.COASTLINE)(plot=dict(scale='50m')))\n",
     "\n",
-    "NbParams(CubeBrowser, execute='next')"
+    "Widgets(CubeBrowser, next_n=1)"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
-    "collapsed": false,
     "urth": {
      "dashboard": {
       "layout": {
@@ -289,21 +285,9 @@
   },
   "hide_input": false,
   "kernelspec": {
-   "display_name": "Python 2",
+   "display_name": "Python 3",
    "language": "python",
-   "name": "python2"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 2
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython2",
-   "version": "2.7.11"
+   "name": "python3"
   },
   "urth": {
    "dashboard": {
@@ -315,5 +299,5 @@
   }
  },
  "nbformat": 4,
- "nbformat_minor": 0
+ "nbformat_minor": 1
 }