capture values return from sub generator

return-value-from-sub-generator.ipynb

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   "source": [
    "def subgen():\n",
    "    try:\n",
    "        yield 10\n",
    "        yield 100\n",
    "    finally:\n",
    "        print('subgen closing...')\n",
    "        return 1000\n",
    "    \n",
    "def delegator():\n",
    "    result = yield from subgen()\n",
    "    print('subgen returned: ', result)\n",
    "    yield 'delegator suspended'\n",
    "    print('delegator closing')\n",
    "    return 10000"
   ]
  },
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   "cell_type": "code",
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   "metadata": {},
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     "name": "stdout",
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     "text": [
      "10\n",
      "100\n",
      "subgen closing...\n",
      "subgen returned:  1000\n",
      "delegator suspended\n",
      "delegator closing\n",
      "delegator returned:  10000\n"
     ]
    }
   ],
   "source": [
    "d = delegator()\n",
    "\n",
    "while True:\n",
    "    try:\n",
    "        print(next(d))\n",
    "    except StopIteration as e:\n",
    "        print('delegator returned: ', e.value)\n",
    "        break"
   ]
  }
 ],
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