{
  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "view-in-github",
        "colab_type": "text"
      },
      "source": [
        "<a href=\"https://colab.research.google.com/github/financieras/pyCourse/blob/main/jupyter/calisto2/0160_ejemplos_sin_herencia1.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
      ]
    },
    {
      "cell_type": "markdown",
      "id": "711e4d5d",
      "metadata": {
        "id": "711e4d5d"
      },
      "source": [
        "# Ejemplos sin herencia [1]"
      ]
    },
    {
      "cell_type": "markdown",
      "id": "795a5313",
      "metadata": {
        "id": "795a5313"
      },
      "source": [
        "## La clase Gato"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 1,
      "id": "29d95ce7",
      "metadata": {
        "id": "29d95ce7"
      },
      "outputs": [],
      "source": [
        "class Gato:\n",
        "    especie = \"Mamífero\"           # atributo de clase, se usa para atributos constantes para todos los objetos\n",
        "\n",
        "    def __init__(self, nombre, edad):\n",
        "        self.nombre = nombre       # los atributos que están dentro del constructor son atributos de instancia\n",
        "        self.edad = edad           # eso supone que cada objeto instanciado tiene sus propios atributos\n",
        "        self.alimentos = []        # un gato puede tener una edad, otro otra, o diferentes alimentos favoritos\n",
        "    def verEtapa(self):\n",
        "        if self.edad > 1:\n",
        "            print(self.nombre, \"es adulto\")\n",
        "        else:\n",
        "            print(self.nombre, \"es cachorro\")\n",
        "    def esAlimento(self, alimento):\n",
        "        return alimento in self.alimentos"
      ]
    },
    {
      "cell_type": "markdown",
      "id": "21674d09",
      "metadata": {
        "id": "21674d09"
      },
      "source": [
        "### Instanciando objetos y comprobando métodos"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 2,
      "id": "969dacda",
      "metadata": {
        "id": "969dacda",
        "outputId": "5b60b120-cf86-4a29-d773-5dd9c449e08f",
        "colab": {
          "base_uri": "https://localhost:8080/"
        }
      },
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Gufi es cachorro\n"
          ]
        }
      ],
      "source": [
        "g = Gato('Gufi', 0.5)\n",
        "g.verEtapa()"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 3,
      "id": "9ce5e38b",
      "metadata": {
        "id": "9ce5e38b",
        "outputId": "1605abc5-ef8d-4204-e626-a77f967d5079",
        "colab": {
          "base_uri": "https://localhost:8080/"
        }
      },
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Mafi es adulto\n"
          ]
        }
      ],
      "source": [
        "m = Gato('Mafi', 3)\n",
        "m.verEtapa()"
      ]
    },
    {
      "cell_type": "markdown",
      "id": "9221d70c",
      "metadata": {
        "id": "9221d70c"
      },
      "source": [
        "### Lista de cada objeto\n",
        "La lista de alimentos favoritos es propia de cada objeto gato."
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 4,
      "id": "3635fb13",
      "metadata": {
        "id": "3635fb13"
      },
      "outputs": [],
      "source": [
        "g.alimentos.append(\"Sardinas\")    # como es una lista puedo usar append"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 5,
      "id": "23ead2b8",
      "metadata": {
        "id": "23ead2b8",
        "outputId": "72ce0c9a-6667-443b-9999-d4d9467c0a54",
        "colab": {
          "base_uri": "https://localhost:8080/"
        }
      },
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "['Sardinas']"
            ]
          },
          "metadata": {},
          "execution_count": 5
        }
      ],
      "source": [
        "g.alimentos"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 6,
      "id": "9d03e717",
      "metadata": {
        "id": "9d03e717",
        "outputId": "2acb8e24-c8a2-48bc-8106-b7e3ef4bc06c",
        "colab": {
          "base_uri": "https://localhost:8080/"
        }
      },
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "True"
            ]
          },
          "metadata": {},
          "execution_count": 6
        }
      ],
      "source": [
        "g.esAlimento(\"Sardinas\")"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 7,
      "id": "c73bc9f9",
      "metadata": {
        "id": "c73bc9f9"
      },
      "outputs": [],
      "source": [
        "m.alimentos.append(\"Natillas\")    # al otro gato le gustan las natillas\n",
        "g.alimentos.append(\"Leche\")       # al cachorro le gusta la leche"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 8,
      "id": "5c772882",
      "metadata": {
        "id": "5c772882",
        "outputId": "e3c38908-dbf2-4965-e455-d3d35f96e5a4",
        "colab": {
          "base_uri": "https://localhost:8080/"
        }
      },
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "['Sardinas', 'Leche']\n",
            "['Natillas']\n"
          ]
        }
      ],
      "source": [
        "print(g.alimentos)\n",
        "print(m.alimentos)"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 9,
      "id": "8ad7ce37",
      "metadata": {
        "id": "8ad7ce37",
        "outputId": "6450fef8-f6d9-43bd-c4ee-0014d3f38cd9",
        "colab": {
          "base_uri": "https://localhost:8080/"
        }
      },
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "False"
            ]
          },
          "metadata": {},
          "execution_count": 9
        }
      ],
      "source": [
        "g.esAlimento(\"Horchata\")"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 10,
      "id": "7c9ba0fb",
      "metadata": {
        "id": "7c9ba0fb",
        "outputId": "0cce8009-bfbb-4e58-96b2-92d3a3273aa2",
        "colab": {
          "base_uri": "https://localhost:8080/"
        }
      },
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Gufi es adulto\n"
          ]
        }
      ],
      "source": [
        "g.edad += 1                      # podemos acceder y modificar los atributos de instancia\n",
        "g.verEtapa()"
      ]
    },
    {
      "cell_type": "markdown",
      "id": "767d908a",
      "metadata": {
        "id": "767d908a"
      },
      "source": [
        "### Los atributos de clase se denominan \"estáticos\"\n",
        "No es necesario un objeto para obtenerlos. Podemos poner Gato.especie y funciona."
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 11,
      "id": "b6c2bb6f",
      "metadata": {
        "id": "b6c2bb6f",
        "outputId": "2e4e88b1-e9cf-44ff-fa12-4888e6c69430",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        }
      },
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "'Mamífero'"
            ],
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            }
          },
          "metadata": {},
          "execution_count": 11
        }
      ],
      "source": [
        "m.especie"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 12,
      "id": "644b892f",
      "metadata": {
        "id": "644b892f",
        "outputId": "2c60c87a-31cf-4ad4-e15e-0eb1e75cb88a",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        }
      },
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "'Mamífero'"
            ],
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            }
          },
          "metadata": {},
          "execution_count": 12
        }
      ],
      "source": [
        "g.especie"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 13,
      "id": "7a4c18de",
      "metadata": {
        "id": "7a4c18de",
        "outputId": "5c532ccd-7d47-4342-d675-4a40f2f7a810",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        }
      },
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "'Mamífero'"
            ],
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            }
          },
          "metadata": {},
          "execution_count": 13
        }
      ],
      "source": [
        "Gato.especie                     # con los atributos de clase podemos poner la clase y el atributo y funciona"
      ]
    },
    {
      "cell_type": "markdown",
      "id": "6a354a7e",
      "metadata": {
        "id": "6a354a7e"
      },
      "source": [
        "### Atributos creados de forma dinámica\n",
        "Podemos crear atributos fuera de la clase, de forma dinámica, pero no se guardarán en la clase y cuando se reinicie el *kernel* no se recordarán."
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 14,
      "id": "8a3371de",
      "metadata": {
        "id": "8a3371de",
        "outputId": "6d99c69c-8bd2-46b1-ed8a-c155a44349b5",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        }
      },
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "'Siamés'"
            ],
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            }
          },
          "metadata": {},
          "execution_count": 14
        }
      ],
      "source": [
        "g.raza = \"Siamés\"                # en Python los atributos se pueden crear de forma dinámica\n",
        "g.raza                           # podemos consultar el atributo, pero no se guarda"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": 15,
      "id": "973bb814",
      "metadata": {
        "id": "973bb814",
        "outputId": "72b4a3e4-222b-4145-b57c-9a364da469ec",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        }
      },
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "'suave'"
            ],
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            }
          },
          "metadata": {},
          "execution_count": 15
        }
      ],
      "source": [
        "Gato.pelaje = \"suave\"            # también funciona con los atributos de clase, nos inventamos una nuevo\n",
        "Gato.pelaje                      # podemos consultar el atributo inventado, pero no se guardará"
      ]
    }
  ],
  "metadata": {
    "kernelspec": {
      "display_name": "Python 3",
      "language": "python",
      "name": "python3"
    },
    "language_info": {
      "codemirror_mode": {
        "name": "ipython",
        "version": 3
      },
      "file_extension": ".py",
      "mimetype": "text/x-python",
      "name": "python",
      "nbconvert_exporter": "python",
      "pygments_lexer": "ipython3",
      "version": "3.8.8"
    },
    "colab": {
      "name": "calisto2_0160.ipynb",
      "provenance": [],
      "include_colab_link": true
    }
  },
  "nbformat": 4,
  "nbformat_minor": 5
}