Arcpy docs are still terrible (http://resources.arcgis.com/en/help/main/10.2/index.html#/Parameter/018z00000063000000/)

arcpy_has_bad_docs.ipynb

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    "import arcpy\n",
    "\n",
    "class Flooder(object):\n",
    "    def __init__(self):\n",
    "        self.label = \"1 - Create Flood Scenarios\"\n",
    "        self.description = \"\"\n",
    "        self.canRunInBackground = True\n",
    "        \n",
    "    def isLicensed(self):\n",
    "        return True\n",
    "\n",
    "    def updateParameters(self, parameters):      \n",
    "        polygons = parameters[0]\n",
    "        tgcol = parameters[1]\n",
    "        try:\n",
    "            print(\"using list of integers\")\n",
    "            polygons.parameterDependencies = [1]\n",
    "        except:\n",
    "            print(\"that failed, try a list integers as strings\")\n",
    "            polygons.parameterDependencies = [\"1\"]\n",
    "            print(\"yup that worked #slowclap\")\n",
    "            \n",
    "\n",
    "    def getParameterInfo(self):\n",
    "        polygons = arcpy.Parameter(displayName=\"Zones\", name=\"polygons\",\n",
    "                                   datatype=\"DEFeatureClass\", parameterType=\"Required\",  \n",
    "                                   direction=\"Input\")\n",
    "\n",
    "        tidegate_column = arcpy.Parameter(displayName=\"ID column\", name=\"tidegate_column\",\n",
    "                                          datatype=\"Field\", parameterType=\"Required\", \n",
    "                                          direction=\"Input\")\n",
    "\n",
    "        return [polygons, tidegate_column]\n"
   ]
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     "text": [
      "using list of integers\n",
      "that failed, try a list integers as strings\n",
      "yup that worked #slowclap\n"
     ]
    }
   ],
   "source": [
    "f = Flooder()\n",
    "p = f.getParameterInfo()\n",
    "f.updateParameters(p)"
   ]
  }
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