diff --git a/wrap/python/tests/automata.ipynb b/wrap/python/tests/automata.ipynb
index 40ac404a8..5e4af9139 100644
--- a/wrap/python/tests/automata.ipynb
+++ b/wrap/python/tests/automata.ipynb
@@ -1,7 +1,23 @@
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-  "signature": "sha256:c0ee6809405cd6426445a43cea6fc3448a99423e1a4be95efeda2fa03680f05f"
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
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+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.4.2"
+  },
+  "name": ""
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  "nbformat": 3,
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@@ -17,7 +33,7 @@
       "# 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=\"11,5\" node[style=filled,fillcolor=\"#ffffaa\"]'\n",
+      "os.environ['SPOT_DOTEXTRA'] = 'size=\"10.2,5\" node[style=filled,fillcolor=\"#ffffaa\"]'\n",
       "os.environ['SPOT_DOTDEFAULT'] = 'rbcf(Lato)'\n",
       "import spot"
      ],
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+        "<text fill=\"#5da5da\" font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"451.706\" y=\"-120.41\">\u24ff</text>\n",
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+        "<text font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"231.206\" y=\"-135.41\">5</text>\n",
+        "<text fill=\"#5da5da\" font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"227.706\" y=\"-120.41\">\u24ff</text>\n",
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-        "<text font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"250.84\" y=\"-160.8\">a &amp; !b &amp; c</text>\n",
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+        "<text font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"272.706\" y=\"-180.28\">a &amp; !b &amp; c</text>\n",
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+        "<text font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"156.576\" y=\"-23.1701\">c</text>\n",
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-        "<text font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"366.84\" y=\"-18.3\">b</text>\n",
+        "<path d=\"M374.076,-36.5344C384.63,-37.2009 393.576,-33.9794 393.576,-26.8701 393.576,-22.2045 389.723,-19.2134 384.092,-17.8967\" fill=\"none\" stroke=\"black\"/>\n",
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+        "<text font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"393.576\" y=\"-23.1701\">b</text>\n",
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-        "<text font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"518.84\" y=\"-18.3\">a</text>\n",
+        "<path d=\"M526.076,-36.5344C536.63,-37.2009 545.576,-33.9794 545.576,-26.8701 545.576,-22.2045 541.723,-19.2134 536.092,-17.8967\" fill=\"none\" stroke=\"black\"/>\n",
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-        "<text font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"99.8401\" y=\"-65.8\">!b &amp; c</text>\n",
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+        "<text font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"111.706\" y=\"-75.5401\">!b &amp; c</text>\n",
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-        "<text font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"155.84\" y=\"-65.8\">b &amp; !c</text>\n",
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+        "<text font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"170.706\" y=\"-75.5401\">b &amp; !c</text>\n",
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+        "<text font-family=\"Lato\" font-size=\"14.00\" text-anchor=\"start\" x=\"156.576\" y=\"-127.91\">b &amp; c</text>\n",
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+        "<g id=\"graph0\" class=\"graph\" transform=\"scale(0.601793 0.601793) rotate(0) translate(4 552)\">\n",
         "<title>G</title>\n",
         "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-552 1215.69,-552 1215.69,4 -4,4\"/>\n",
         "<!-- I -->\n",
@@ -1542,7 +1558,7 @@
         "</svg>\n"
        ],
        "text": [
-        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x7fa0e8138b40> >"
+        "<spot_impl.tgba_digraph; proxy of <Swig Object of type 'std::shared_ptr< spot::tgba_digraph > *' at 0x7f5e4005c9f0> >"
        ]
       }
      ],