{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# <font color='blue'>Data Science Academy - Python Fundamentos - Capítulo 5</font>\n",
    "\n",
    "## Download: http://github.com/dsacademybr"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Objetos"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Em Python, tudo é objeto!"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# Criando uma lista\n",
    "lst_num = [\"Data\", \"Science\", \"Academy\", \"Nota\", 10, 10]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "list"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# A lista lst_num é um objeto, uma instância da classe lista em Python\n",
    "type(lst_num)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "2"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "lst_num.count(10)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "<class 'int'>\n",
      "<class 'list'>\n",
      "<class 'tuple'>\n",
      "<class 'dict'>\n",
      "<class 'str'>\n"
     ]
    }
   ],
   "source": [
    "# Usamos a função type, para verificar o tipo de um objeto\n",
    "print(type(10))\n",
    "print(type([]))\n",
    "print(type(()))\n",
    "print(type({}))\n",
    "print(type('a'))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "<class '__main__.Carro'>\n"
     ]
    }
   ],
   "source": [
    "# Criando um novo tipo de objeto chamado Carro\n",
    "class Carro(object):\n",
    "    pass\n",
    "\n",
    "# Instância do Carro\n",
    "palio = Carro()\n",
    "\n",
    "print(type(palio))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# Criando uma classe\n",
    "class Estudantes:\n",
    "    def __init__(self, nome, idade, nota):\n",
    "        self.nome = nome\n",
    "        self.idade = idade\n",
    "        self.nota = nota"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# Criando um objeto chamado Estudante1 a partir da classe Estudantes\n",
    "Estudante1 = Estudantes(\"Pele\", 12, 9.5)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'Pele'"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# Atributo da classe Estudante, utilizado por cada objeto criado a partir desta classe\n",
    "Estudante1.nome"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "12"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# Atributo da classe Estudante, utilizado por cada objeto criado a partir desta classe\n",
    "Estudante1.idade"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "9.5"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# Atributo da classe Estudante, utilizado por cada objeto criado a partir desta classe\n",
    "Estudante1.nota"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# Criando uma classe\n",
    "class Funcionarios:\n",
    "    def __init__(self, nome, salario):\n",
    "        self.nome = nome\n",
    "        self.salario = salario\n",
    "\n",
    "    def listFunc(self):\n",
    "        print(\"O nome do funcionário é \" + self.nome + \" e o salário é R$\" + str(self.salario))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# Criando um objeto chamado Func1 a partir da classe Funcionarios\n",
    "Func1 = Funcionarios(\"Obama\", 20000)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "O nome do funcionário é Obama e o salário é R$20000\n"
     ]
    }
   ],
   "source": [
    "# Usando o método da classe\n",
    "Func1.listFunc()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "**** Usando atributos *****\n"
     ]
    }
   ],
   "source": [
    "print(\"**** Usando atributos *****\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 15,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "hasattr(Func1, \"nome\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 16,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "hasattr(Func1, \"salario\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "setattr(Func1, \"salario\", 4500)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 18,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "hasattr(Func1, \"salario\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "4500"
      ]
     },
     "execution_count": 19,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "getattr(Func1, \"salario\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "delattr(Func1, \"salario\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "False"
      ]
     },
     "execution_count": 21,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "hasattr(Func1, \"salario\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Fim"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Obrigado - Data Science Academy - <a href=\"http://facebook.com/dsacademybr\">facebook.com/dsacademybr</a>"
   ]
  }
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