D3 Widget Example Python 3.x compatability

examples/widgets/D3.ipynb

@@ -8,6 +8,17 b''
   {
    "cells": [
     {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from __future__ import print_function # py 2.7 compat"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [],
+     "prompt_number": 1
+    },
+    {
      "cell_type": "heading",
      "level": 1,
      "metadata": {},
@@ -27,7 +38,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 1
+     "prompt_number": 2
     },
     {
      "cell_type": "heading",
@@ -51,7 +62,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 2
+     "prompt_number": 3
     },
     {
      "cell_type": "code",
@@ -66,13 +77,13 b''
       {
        "metadata": {},
        "output_type": "pyout",
-       "prompt_number": 3,
+       "prompt_number": 4,
        "text": [
-        "'{\"directed\": false, \"graph\": [], \"nodes\": [{\"id\": 1}, {\"id\": 2}], \"links\": [{\"source\": 0, \"target\": 1}], \"multigraph\": false}'"
+        "'{\"multigraph\": false, \"directed\": false, \"links\": [{\"target\": 1, \"source\": 0}], \"graph\": [], \"nodes\": [{\"id\": 1}, {\"id\": 2}]}'"
        ]
       }
      ],
-     "prompt_number": 3
+     "prompt_number": 4
     },
     {
      "cell_type": "code",
@@ -87,13 +98,13 b''
       {
        "metadata": {},
        "output_type": "pyout",
-       "prompt_number": 4,
+       "prompt_number": 5,
        "text": [
-        "'{\"directed\": false, \"graph\": [], \"nodes\": [{\"id\": \"test\"}, {\"id\": 1}, {\"id\": 2}], \"links\": [{\"source\": 1, \"target\": 2}], \"multigraph\": false}'"
+        "'{\"multigraph\": false, \"directed\": false, \"links\": [{\"target\": 1, \"source\": 0}], \"graph\": [], \"nodes\": [{\"id\": 1}, {\"id\": 2}, {\"id\": \"test\"}]}'"
        ]
       }
      ],
-     "prompt_number": 4
+     "prompt_number": 5
     },
     {
      "cell_type": "heading",
@@ -206,7 +217,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 5
+     "prompt_number": 6
     },
     {
      "cell_type": "markdown",
@@ -224,7 +235,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 6
+     "prompt_number": 7
     },
     {
      "cell_type": "code",
@@ -232,11 +243,11 b''
      "input": [
       "def echo_dict_events(eventful_dict, prefix=''):\n",
       "    def key_add(key, value):\n",
-      "        print prefix + 'add (%s, %s)' % (key, str(value))\n",
+      "        print(prefix + 'add (%s, %s)' % (key, str(value)))\n",
       "    def key_set(key, value):\n",
-      "        print prefix + 'set (%s, %s)' % (key, str(value))\n",
+      "        print(prefix + 'set (%s, %s)' % (key, str(value)))\n",
       "    def key_del(key):\n",
-      "        print prefix + 'del %s' % key\n",
+      "        print(prefix + 'del %s' % key)\n",
       "    eventful_dict.on_add(key_add)\n",
       "    eventful_dict.on_set(key_set)\n",
       "    eventful_dict.on_del(key_del)\n",
@@ -246,7 +257,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 7
+     "prompt_number": 8
     },
     {
      "cell_type": "code",
@@ -265,7 +276,7 b''
        ]
       }
      ],
-     "prompt_number": 8
+     "prompt_number": 9
     },
     {
      "cell_type": "code",
@@ -284,7 +295,7 b''
        ]
       }
      ],
-     "prompt_number": 9
+     "prompt_number": 10
     },
     {
      "cell_type": "code",
@@ -305,7 +316,7 b''
        ]
       }
      ],
-     "prompt_number": 10
+     "prompt_number": 11
     },
     {
      "cell_type": "code",
@@ -319,13 +330,13 b''
       {
        "metadata": {},
        "output_type": "pyout",
-       "prompt_number": 11,
+       "prompt_number": 12,
        "text": [
         "{'a': 'goodbye', 'c': 'yay', 'd': 'no'}"
        ]
       }
      ],
-     "prompt_number": 11
+     "prompt_number": 12
     },
     {
      "cell_type": "code",
@@ -339,13 +350,13 b''
       {
        "metadata": {},
        "output_type": "pyout",
-       "prompt_number": 12,
+       "prompt_number": 13,
        "text": [
         "'goodbye'"
        ]
       }
      ],
-     "prompt_number": 12
+     "prompt_number": 13
     },
     {
      "cell_type": "code",
@@ -366,13 +377,13 b''
       {
        "metadata": {},
        "output_type": "pyout",
-       "prompt_number": 13,
+       "prompt_number": 14,
        "text": [
         "('c', 'yay')"
        ]
       }
      ],
-     "prompt_number": 13
+     "prompt_number": 14
     },
     {
      "cell_type": "code",
@@ -391,7 +402,7 b''
        ]
       }
      ],
-     "prompt_number": 14
+     "prompt_number": 15
     },
     {
      "cell_type": "code",
@@ -410,7 +421,7 b''
        ]
       }
      ],
-     "prompt_number": 15
+     "prompt_number": 16
     },
     {
      "cell_type": "code",
@@ -429,7 +440,7 b''
        ]
       }
      ],
-     "prompt_number": 16
+     "prompt_number": 17
     },
     {
      "cell_type": "code",
@@ -449,7 +460,7 b''
        ]
       }
      ],
-     "prompt_number": 17
+     "prompt_number": 18
     },
     {
      "cell_type": "markdown",
@@ -476,7 +487,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 18
+     "prompt_number": 19
     },
     {
      "cell_type": "code",
@@ -489,7 +500,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 19
+     "prompt_number": 20
     },
     {
      "cell_type": "code",
@@ -501,7 +512,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 20
+     "prompt_number": 21
     },
     {
      "cell_type": "code",
@@ -515,13 +526,13 b''
       {
        "metadata": {},
        "output_type": "pyout",
-       "prompt_number": 21,
+       "prompt_number": 22,
        "text": [
-        "'{\"directed\": false, \"graph\": [], \"nodes\": [], \"links\": [], \"multigraph\": false}'"
+        "'{\"multigraph\": false, \"directed\": false, \"links\": [], \"graph\": [], \"nodes\": []}'"
        ]
       }
      ],
-     "prompt_number": 21
+     "prompt_number": 22
     },
     {
      "cell_type": "code",
@@ -558,13 +569,13 b''
       {
        "metadata": {},
        "output_type": "pyout",
-       "prompt_number": 22,
+       "prompt_number": 23,
        "text": [
-        "'{\"directed\": false, \"graph\": [], \"nodes\": [{\"id\": 1}, {\"id\": 2}, {\"id\": 3}, {\"id\": \"hello\"}, {\"id\": \"goodbye\"}], \"links\": [{\"source\": 0, \"target\": 1}, {\"source\": 0, \"target\": 2}], \"multigraph\": false}'"
+        "'{\"multigraph\": false, \"directed\": false, \"links\": [{\"target\": 1, \"source\": 0}, {\"target\": 3, \"source\": 1}], \"graph\": [], \"nodes\": [{\"id\": 3}, {\"id\": 1}, {\"id\": \"goodbye\"}, {\"id\": 2}, {\"id\": \"hello\"}]}'"
        ]
       }
      ],
-     "prompt_number": 22
+     "prompt_number": 23
     },
     {
      "cell_type": "code",
@@ -578,13 +589,13 b''
       {
        "metadata": {},
        "output_type": "pyout",
-       "prompt_number": 23,
+       "prompt_number": 24,
        "text": [
-        "{1: {2: {}, 3: {}}, 2: {1: {}}, 3: {1: {}}, 'goodbye': {}, 'hello': {}}"
+        "{3: {1: {}}, 1: {2: {}, 3: {}}, 'goodbye': {}, 2: {1: {}}, 'hello': {}}"
        ]
       }
      ],
-     "prompt_number": 23
+     "prompt_number": 24
     },
     {
      "cell_type": "code",
@@ -598,13 +609,13 b''
       {
        "metadata": {},
        "output_type": "pyout",
-       "prompt_number": 24,
+       "prompt_number": 25,
        "text": [
-        "{1: {}, 2: {}, 3: {}, 'goodbye': {}, 'hello': {}}"
+        "{3: {}, 1: {}, 'goodbye': {}, 2: {}, 'hello': {}}"
        ]
       }
      ],
-     "prompt_number": 24
+     "prompt_number": 25
     },
     {
      "cell_type": "heading",
@@ -645,11 +656,11 b''
        "metadata": {},
        "output_type": "display_data",
        "text": [
-        "<IPython.core.display.HTML at 0x2e2c590>"
+        "<IPython.core.display.HTML at 0x7fa801877d90>"
        ]
       }
      ],
-     "prompt_number": 25
+     "prompt_number": 26
     },
     {
      "cell_type": "code",
@@ -661,7 +672,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 26
+     "prompt_number": 27
     },
     {
      "cell_type": "code",
@@ -708,7 +719,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 27
+     "prompt_number": 28
     },
     {
      "cell_type": "code",
@@ -1079,11 +1090,11 b''
        "metadata": {},
        "output_type": "display_data",
        "text": [
-        "<IPython.core.display.Javascript at 0x2e820d0>"
+        "<IPython.core.display.Javascript at 0x7fa809a360d0>"
        ]
       }
      ],
-     "prompt_number": 28
+     "prompt_number": 29
     },
     {
      "cell_type": "code",
@@ -1101,13 +1112,13 b''
       {
        "metadata": {},
        "output_type": "pyout",
-       "prompt_number": 30,
+       "prompt_number": 36,
        "text": [
-        "'{\"directed\": false, \"graph\": [], \"nodes\": [{\"id\": 1}, {\"id\": 2}, {\"id\": 3}, {\"id\": \"hello\"}, {\"id\": \"goodbye\"}], \"links\": [{\"source\": 0, \"target\": 1}, {\"source\": 0, \"target\": 2}], \"multigraph\": false}'"
+        "'{\"multigraph\": false, \"directed\": false, \"links\": [{\"target\": 1, \"source\": 0}, {\"target\": 3, \"source\": 1}], \"graph\": [], \"nodes\": [{\"id\": 3}, {\"id\": 1}, {\"id\": \"goodbye\"}, {\"id\": 2}, {\"id\": \"hello\"}]}'"
        ]
       }
      ],
-     "prompt_number": 30
+     "prompt_number": 36
     },
     {
      "cell_type": "code",
@@ -1140,7 +1151,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 31
+     "prompt_number": 37
     },
     {
      "cell_type": "code",
@@ -1152,7 +1163,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 32
+     "prompt_number": 38
     },
     {
      "cell_type": "code",
@@ -1163,7 +1174,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 33
+     "prompt_number": 39
     },
     {
      "cell_type": "code",
@@ -1175,7 +1186,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 34
+     "prompt_number": 40
     },
     {
      "cell_type": "code",
@@ -1189,7 +1200,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 35
+     "prompt_number": 41
     },
     {
      "cell_type": "code",
@@ -1203,7 +1214,7 b''
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 36
+     "prompt_number": 42
     },
     {
      "cell_type": "code",