Sample code of json.dumps() method.

json_dumps.ipynb

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      "dict is ... <class 'dict'>\n",
      "{'name': 'Yamada Taro', 'name_jp': '山田\\t太郎', 'age': 23, 'gender': 'man', 'is_member': True, 'foo': None}\n",
      "******************\n",
      "encode is ... <class 'str'>\n",
      "'{\"name\": \"Yamada Taro\", \"name_jp\": \"\\\\u5c71\\\\u7530\\\\t\\\\u592a\\\\u90ce\", \"age\": 23, \"gender\": \"man\", \"is_member\": true, \"foo\": null}'\n",
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    "# json.dumpsは何をしてくれるモノなのか\n",
    "import json\n",
    "\n",
    "dict = {\n",
    "    \"name\": \"Yamada Taro\",\n",
    "    \"name_jp\": \"山田\\t太郎\",  # エスケープ文字, 非ascii文字\n",
    "    \"age\": 23,                # numeric\n",
    "    \"gender\": \"man\",\n",
    "    \"is_member\": True,       # Boolean\n",
    "    \"foo\": None              # None\n",
    "}\n",
    " \n",
    "encoded = json.dumps(dict)\n",
    "encoded_not_ascii = json.dumps(dict, ensure_ascii=False)\n",
    "\n",
    "print(f\"dict is ... {type(dict)}\")\n",
    "print(repr(dict))\n",
    "print(\"******************\")\n",
    "print(f\"encode is ... {type(encoded)}\")\n",
    "print(repr(encoded))\n",
    "print(repr(encoded_not_ascii))\n"
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