fun with graphviz.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "downtown-greensboro",
   "metadata": {},
   "outputs": [],
   "source": [
    "%config Completer.use_jedi = False\n",
    "import graphviz\n",
    "import ipywidgets as widgets"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "id": "statistical-tunnel",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'circo', 'dot', 'fdp', 'neato', 'osage', 'patchwork', 'sfdp', 'twopi'}"
      ]
     },
     "execution_count": 20,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "graphviz.ENGINES"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 31,
   "id": "grave-trial",
   "metadata": {},
   "outputs": [
    {
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       "</svg>\r\n"
      ],
      "text/plain": [
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     },
     "execution_count": 31,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "def drawloop(**kwargs):\n",
    "    g=graphviz.Digraph(**kwargs)\n",
    "    r=range(4)\n",
    "    for i in r:\n",
    "        g.node(f\"{i}\")\n",
    "    for i in r:\n",
    "        g.edge(f\"{i}\",f\"{r[i-1]}\")\n",
    "    return g\n",
    "drawloop(engine=\"circo\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "id": "placed-klein",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "twopi\n"
     ]
    },
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     "metadata": {},
     "output_type": "display_data"
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    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "circo\n"
     ]
    },
    {
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     "text": [
      "sfdp\n"
     ]
    },
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   "source": [
    "for e in graphviz.ENGINES:\n",
    "    print(e)\n",
    "    display(drawloop(engine=e))"
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  },
  {
   "cell_type": "code",
   "execution_count": 42,
   "id": "immediate-virtue",
   "metadata": {},
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    "g=drawloop(engine=\"circo\")\n",
    "g.node(\"4\")\n",
    "g.edge(\"4\",\"0\")\n",
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    "g.node(\"5\")\n",
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    "g.edge(\"2\",\"6\")\n",
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   "execution_count": 52,
   "id": "baking-jefferson",
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    "g=drawloop(engine=\"neato\")\n",
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    "g.edge(\"4\",\"0\")\n",
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       "<g id=\"edge7\" class=\"edge\"><title>5&#45;&gt;1</title>\r\n",
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       "</svg>\r\n"
      ],
      "text/plain": [
       "<graphviz.dot.Digraph at 0x1c0f2963508>"
      ]
     },
     "execution_count": 79,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "g=graphviz.Digraph(engine=\"dot\")\n",
    "g.attr(\"graph\",pack=\"True\")\n",
    "g.node(\"0\")\n",
    "g.node(\"1\")\n",
    "g.node(\"2\")\n",
    "g.node(\"3\")\n",
    "g.edge(\"0\",\"1\")\n",
    "g.edge(\"1\",\"2\")\n",
    "g.edge(\"2\",\"3\")\n",
    "g.edge(\"3\",\"0\")\n",
    "\"\"\"\n",
    "g.edge(\"0\",\"1\",tailport=\"w\",headport=\"s\")\n",
    "g.edge(\"1\",\"2\",tailport=\"n\",headport=\"w\")\n",
    "g.edge(\"2\",\"3\",tailport=\"e\",headport=\"n\")\n",
    "g.edge(\"3\",\"0\",tailport=\"s\",headport=\"e\")\n",
    "\"\"\"\n",
    "g.node(\"4\")\n",
    "g.edge(\"4\",\"0\")\n",
    "g.edge(\"0\",\"4\")\n",
    "g.node(\"5\")\n",
    "g.edge(\"5\",\"1\")\n",
    "g.edge(\"1\",\"5\")\n",
    "g.node(\"6\")\n",
    "g.edge(\"6\",\"0\")\n",
    "g.edge(\"2\",\"6\")\n",
    "\n",
    "g.node(\"10\")\n",
    "g.edge(\"4\",\"0\")\n",
    "g.edge(\"0\",\"4\")\n",
    "g.node(\"11\")\n",
    "g.edge(\"5\",\"1\")\n",
    "g.edge(\"1\",\"5\")\n",
    "g.node(\"12\")\n",
    "g.edge(\"6\",\"0\")\n",
    "g.edge(\"2\",\"6\")\n",
    "\n",
    "g"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 78,
   "id": "celtic-carter",
   "metadata": {},
   "outputs": [
    {
     "ename": "ValueError",
     "evalue": "not enough values to unpack (expected 2, got 1)",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mValueError\u001b[0m                                Traceback (most recent call last)",
      "\u001b[1;32m<ipython-input-78-4b711437ffb8>\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[1;32m----> 1\u001b[1;33m \u001b[0mg\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mattr\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;34m\"graph\"\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;34m\"pack\"\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m",
      "\u001b[1;32m~\\AppData\\Local\\Continuum\\anaconda3\\envs\\myclone\\lib\\site-packages\\graphviz\\dot.py\u001b[0m in \u001b[0;36mattr\u001b[1;34m(self, kw, _attributes, **attrs)\u001b[0m\n\u001b[0;32m    190\u001b[0m                 \u001b[0mline\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0m_attr_plain\u001b[0m \u001b[1;33m%\u001b[0m \u001b[0ma_list\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m    191\u001b[0m             \u001b[1;32melse\u001b[0m\u001b[1;33m:\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m--> 192\u001b[1;33m                 \u001b[0mattr_list\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0m_attr_list\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;32mNone\u001b[0m\u001b[1;33m,\u001b[0m \u001b[0mattrs\u001b[0m\u001b[1;33m,\u001b[0m \u001b[0m_attributes\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m    193\u001b[0m                 \u001b[0mline\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0m_attr\u001b[0m \u001b[1;33m%\u001b[0m \u001b[1;33m(\u001b[0m\u001b[0mkw\u001b[0m\u001b[1;33m,\u001b[0m \u001b[0mattr_list\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m    194\u001b[0m             \u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mbody\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mappend\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mline\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n",
      "\u001b[1;32m~\\AppData\\Local\\Continuum\\anaconda3\\envs\\myclone\\lib\\site-packages\\graphviz\\lang.py\u001b[0m in \u001b[0;36mattr_list\u001b[1;34m(label, kwargs, attributes)\u001b[0m\n\u001b[0;32m    134\u001b[0m     \u001b[1;34m' [eggs=\"\"]'\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m    135\u001b[0m     \"\"\"\n\u001b[1;32m--> 136\u001b[1;33m     \u001b[0mcontent\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0ma_list\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mlabel\u001b[0m\u001b[1;33m,\u001b[0m \u001b[0mkwargs\u001b[0m\u001b[1;33m,\u001b[0m \u001b[0mattributes\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m    137\u001b[0m     \u001b[1;32mif\u001b[0m \u001b[1;32mnot\u001b[0m \u001b[0mcontent\u001b[0m\u001b[1;33m:\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m    138\u001b[0m         \u001b[1;32mreturn\u001b[0m \u001b[1;34m''\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n",
      "\u001b[1;32m~\\AppData\\Local\\Continuum\\anaconda3\\envs\\myclone\\lib\\site-packages\\graphviz\\lang.py\u001b[0m in \u001b[0;36ma_list\u001b[1;34m(label, kwargs, attributes)\u001b[0m\n\u001b[0;32m    114\u001b[0m             \u001b[0mattributes\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mtools\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mmapping_items\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mattributes\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m    115\u001b[0m         items = ['%s=%s' % (quote(k), quote(v))\n\u001b[1;32m--> 116\u001b[1;33m                  for k, v in attributes if v is not None]\n\u001b[0m\u001b[0;32m    117\u001b[0m         \u001b[0mresult\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mextend\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mitems\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m    118\u001b[0m     \u001b[1;32mreturn\u001b[0m \u001b[1;34m' '\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mjoin\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mresult\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n",
      "\u001b[1;32m~\\AppData\\Local\\Continuum\\anaconda3\\envs\\myclone\\lib\\site-packages\\graphviz\\lang.py\u001b[0m in \u001b[0;36m<listcomp>\u001b[1;34m(.0)\u001b[0m\n\u001b[0;32m    113\u001b[0m         \u001b[1;32mif\u001b[0m \u001b[0mhasattr\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mattributes\u001b[0m\u001b[1;33m,\u001b[0m \u001b[1;34m'items'\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m:\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m    114\u001b[0m             \u001b[0mattributes\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mtools\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mmapping_items\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mattributes\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m--> 115\u001b[1;33m         items = ['%s=%s' % (quote(k), quote(v))\n\u001b[0m\u001b[0;32m    116\u001b[0m                  for k, v in attributes if v is not None]\n\u001b[0;32m    117\u001b[0m         \u001b[0mresult\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mextend\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mitems\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n",
      "\u001b[1;31mValueError\u001b[0m: not enough values to unpack (expected 2, got 1)"
     ]
    }
   ],
   "source": [
    "g.attr(\"graph\",\"pack\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "crude-productivity",
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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   "language": "python",
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  "language_info": {
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    "name": "ipython",
    "version": 3
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   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
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