20161125-dojo-property-decorator-read-only-attribute.ipynb

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   "source": [
    "With Python being a language for consenting adults,\n",
    "it does not have constant or read-only data types\n",
    "to protect one from oneself,\n",
    "but you can fake it with the property decorator."
   ]
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    "class Foo(object):\n",
    "    @property\n",
    "    def bar(self):\n",
    "        return 'hello'"
   ]
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   "source": [
    "foo = Foo()\n",
    "foo"
   ]
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     "data": {
      "text/plain": [
       "'hello'"
      ]
     },
     "execution_count": 3,
     "metadata": {},
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   "source": [
    "foo.bar"
   ]
  },
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   "cell_type": "code",
   "execution_count": 4,
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    {
     "ename": "AttributeError",
     "evalue": "can't set attribute",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mAttributeError\u001b[0m                            Traceback (most recent call last)",
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      "\u001b[1;31mAttributeError\u001b[0m: can't set attribute"
     ]
    }
   ],
   "source": [
    "foo.bar = 'world'"
   ]
  }
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