Python_Manipulacao_de_Arquivos_JSON.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Manipulando Arquivos JSON (Java Script Object Notation)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "# JSON  (JavaScript Object Notationi) é uma maneira de armazenar informações de forma ogarnizada e de fácil acesso.  \n",
    "# Em poucas palavras, ele nos da uma coleção legível de dados que podem ser acessados de forma muito lógica.\n",
    "# Pode ser uma fonte de Big Data."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Criando um dicionário\n",
    "dict = {'nome': 'Guido van Rossum',\n",
    "        'linguagem': 'Python',\n",
    "        'similar': ['c','Modula-3','lisp'],\n",
    "        'users': 1000000}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "nome Guido van Rossum\n",
      "linguagem Python\n",
      "similar ['c', 'Modula-3', 'lisp']\n",
      "users 1000000\n"
     ]
    }
   ],
   "source": [
    "for k,v in dict.items():\n",
    "    print (k,v)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Importando o módulo Json\n",
    "import json"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'{\"nome\": \"Guido van Rossum\", \"linguagem\": \"Python\", \"similar\": [\"c\", \"Modula-3\", \"lisp\"], \"users\": 1000000}'"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# Convertendo o dicionário para um objeto json\n",
    "json.dumps(dict)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Criando um arquivo Json\n",
    "with open('arquivos/dados.json','w') as arquivo:\n",
    "    arquivo.write(json.dumps(dict))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Leitura de arquivos Json\n",
    "with open('arquivos/dados.json','r') as arquivo:\n",
    "    texto = arquivo.read()\n",
    "    data = json.loads(texto)                                                                                                                                                                                                                                      "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'nome': 'Guido van Rossum', 'linguagem': 'Python', 'similar': ['c', 'Modula-3', 'lisp'], 'users': 1000000}\n"
     ]
    }
   ],
   "source": [
    "print (data)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Guido van Rossum\n"
     ]
    }
   ],
   "source": [
    "print (data['nome'])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 37,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Python\n"
     ]
    }
   ],
   "source": [
    "print (data['linguagem'])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 38,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['c', 'Modula-3', 'lisp']\n"
     ]
    }
   ],
   "source": [
    "print (data['similar'])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 39,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "1000000\n"
     ]
    }
   ],
   "source": [
    "print (data['users'])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 40,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'nome': 'Guido van Rossum', 'linguagem': 'Python', 'similar': ['c', 'Modula-3', 'lisp'], 'users': 1000000}\n"
     ]
    }
   ],
   "source": [
    "print(data)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 41,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Imprimindo um arquivo Json copiado da internet\n",
    "from urllib.request import urlopen\n",
    "\n",
    "response = urlopen(\"http://vimeo.com/api/v2/video/57733101.json\").read().decode('utf8')\n",
    "data = json.loads(response)[0]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 42,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Título:  The Good Man trailer\n",
      "URL:  https://vimeo.com/57733101\n",
      "Duração:  143\n",
      "Número de Visualizações:  5853\n"
     ]
    }
   ],
   "source": [
    "print ('Título: ', data['title'])\n",
    "print ('URL: ', data['url'])\n",
    "print ('Duração: ', data['duration'])\n",
    "print ('Número de Visualizações: ', data['stats_number_of_plays'])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 43,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Copiando o conteúdo de um arquivo para outro\n",
    "import os\n",
    "\n",
    "arquivo_fonte = 'arquivos/dados.json'\n",
    "arquivo_destino = 'arquivos/json_data.txt'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 44,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Método 1\n",
    "with open(arquivo_fonte,'r') as infile:\n",
    "    text = infile.read()\n",
    "    with open(arquivo_destino,'w') as outfile:\n",
    "        outfile.write(text)  "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 45,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "107"
      ]
     },
     "execution_count": 45,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# Método 2\n",
    "open(arquivo_destino,'w').write(open(arquivo_fonte,'r').read()) "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 46,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Leitura de arquivos Json\n",
    "with open('arquivos/json_data.txt','r') as arquivo:\n",
    "    texto = arquivo.read()\n",
    "    data = json.loads(texto)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 47,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'nome': 'Guido van Rossum', 'linguagem': 'Python', 'similar': ['c', 'Modula-3', 'lisp'], 'users': 1000000}\n"
     ]
    }
   ],
   "source": [
    "print(data)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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