Add setup method for spot.

* wrap/python/spot.py: here.
* wrap/python/tests/automata.ipynb: tests here.

wrap/python/spot.py

@@ -25,6 +25,15 @@ from functools import lru_cache
 # Global BDD dict so that we do not have to create one in user code.
 _bdd_dict = make_bdd_dict()
 
+# Load all preliminaries for a fancy display
+def setup(show_bullet=True):
+    import os
+    os.environ['SPOT_DOTEXTRA'] = 'size="10.2,5" node[style=filled,fillcolor="#ffffaa"] edge[arrowhead=vee, arrowsize=.7]'
+    if show_bullet:
+        os.environ['SPOT_DOTDEFAULT'] = 'rbcf(Lato)'
+    else:
+        os.environ['SPOT_DOTDEFAULT'] = 'rcf(Lato)'
+
 # Add a small LRU cache so that when we display automata into a
 # interactive widget, we avoid some repeated calls to dot for
 # identical inputs.

wrap/python/tests/automata.ipynb

@@ -18,7 +18,7 @@
    "version": "3.4.2"
   },
   "name": "",
-  "signature": "sha256:7bcd29a20e60c508a998923ed5875f91f69cd4f3e77dca19795b976dab016b90"
+  "signature": "sha256:a45a88a09bb68e3c3ea4856e0dc7ab83ccc4afa607806beb1fa902de88e28792"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -30,13 +30,8 @@
      "collapsed": false,
      "input": [
       "import os\n",
-      "# Note that Spot (loaded by the kernel) will store a copy of\n",
-      "# the environment variable the first time it reads them, so\n",
-      "# if you change those variables, the new values will be ignored\n",
-      "# until you restart the kernel.\n",
-      "os.environ['SPOT_DOTEXTRA'] = 'size=\"10.2,5\" node[style=filled,fillcolor=\"#ffffaa\"] edge[arrowhead=vee, arrowsize=.7]'\n",
-      "os.environ['SPOT_DOTDEFAULT'] = 'rbcf(Lato)'\n",
-      "import spot"
+      "import spot\n",
+      "spot.setup(True)"
      ],
      "language": "python",
      "metadata": {},
@@ -176,7 +171,7 @@
         "</svg>\n"
        ],
        "text": [
-        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x1052702d0> >"
+        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x10f07d3c0> >"
        ]
       }
      ],
@@ -308,7 +303,7 @@
         "</svg>"
        ],
        "text": [
-        "<IPython.core.display.SVG at 0x104c5a390>"
+        "<IPython.core.display.SVG at 0x10ea65390>"
        ]
       }
      ],
@@ -454,7 +449,7 @@
         "</svg>"
        ],
        "text": [
-        "<IPython.core.display.SVG at 0x106c689b0>"
+        "<IPython.core.display.SVG at 0x110a75a20>"
        ]
       }
      ],
@@ -547,7 +542,7 @@
         "</svg>\n"
        ],
        "text": [
-        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x106ca0060> >"
+        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x110aae060> >"
        ]
       }
      ],
@@ -617,7 +612,7 @@
         "</svg>\n"
        ],
        "text": [
-        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x106ca0120> >"
+        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x110aae120> >"
        ]
       }
      ],
@@ -686,7 +681,7 @@
         "</svg>\n"
        ],
        "text": [
-        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x106ca0030> >"
+        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x110aae030> >"
        ]
       }
      ],
@@ -802,7 +797,7 @@
         "</svg>"
        ],
        "text": [
-        "<IPython.core.display.SVG at 0x106ca70b8>"
+        "<IPython.core.display.SVG at 0x110ab21d0>"
        ]
       }
      ],
@@ -992,7 +987,7 @@
         "</svg>"
        ],
        "text": [
-        "<IPython.core.display.SVG at 0x106cb6940>"
+        "<IPython.core.display.SVG at 0x110ac49e8>"
        ]
       }
      ],
@@ -1085,7 +1080,7 @@
         "</svg>\n"
        ],
        "text": [
-        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x1052dcfc0> >"
+        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x10f0ecfc0> >"
        ]
       }
      ],
@@ -1559,7 +1554,7 @@
         "</svg>\n"
        ],
        "text": [
-        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x1052dcba0> >"
+        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x10f0ecba0> >"
        ]
       }
      ],