(PROFESSOR) Colab_Curso_Python_Aula_2_(strings).ipynb

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      "display_name": "Python 3"
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        "<a href=\"https://colab.research.google.com/github/Muramatsu2602/nlp-intro/blob/main/(PROFESSOR)%20Colab_Curso_Python_Aula_2_(strings).ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
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      "source": [
        "'aspas simples'"
      ],
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              "'aspas simples'"
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      "source": [
        "\"aspas duplas\""
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            "text/plain": [
              "'aspas duplas'"
            ]
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          "execution_count": 2
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
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      },
      "source": [
        "\"\"\"aspas triplas\"\"\""
      ],
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      "outputs": []
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    {
      "cell_type": "code",
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        "id": "46bl5zMd0CP3",
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          "height": 54
        },
        "outputId": "9a7d085d-93bb-4494-da03-9c7e84cef698"
      },
      "source": [
        "\"\"\"aspas triplas tem uma propriedade que ignoram \r\n",
        "as quebras de linha, então a string aparece\r\n",
        "da forma como ela é escrita, inclusive com \r\n",
        "as quebras de linha\"\"\""
      ],
      "execution_count": null,
      "outputs": [
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            "text/plain": [
              "'aspas triplas tem uma propriedade que ignoram \\nas quebras de linha, então a string aparece\\nda forma como ela é escrita, inclusive com \\nas quebras de linha'"
            ]
          },
          "metadata": {
            "tags": []
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          "execution_count": 3
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        "outputId": "c38e7313-680e-430b-8797-0fcb828efe05"
      },
      "source": [
        "r = 'roney'\r\n",
        "r[0] = 'l'"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "error",
          "ename": "TypeError",
          "evalue": "ignored",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mTypeError\u001b[0m                                 Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-4-619dd92dff4a>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0mr\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m'roney'\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 2\u001b[0;31m \u001b[0mr\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0;36m0\u001b[0m\u001b[0;34m]\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m'l'\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
            "\u001b[0;31mTypeError\u001b[0m: 'str' object does not support item assignment"
          ]
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      "source": [
        "nr = 'l' + r[1:]\r\n",
        "nr"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'loney'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 5
        }
      ]
    },
    {
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        "id": "r4c8030k0rMi",
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          "height": 36
        },
        "outputId": "56db3b45-48b9-4bb5-e806-eac379645a6b"
      },
      "source": [
        "r = 'roney'\r\n",
        "r = r + ' lira'\r\n",
        "r"
      ],
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      "outputs": [
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          "output_type": "execute_result",
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            "text/plain": [
              "'roney lira'"
            ]
          },
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            "tags": []
          },
          "execution_count": 6
        }
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    {
      "cell_type": "code",
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          "height": 191
        },
        "outputId": "0e4e720c-d120-480c-dad8-05ff925e344b"
      },
      "source": [
        "pi = 3.14\r\n",
        "info = 'o valor de pi é = ' + pi"
      ],
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      "outputs": [
        {
          "output_type": "error",
          "ename": "TypeError",
          "evalue": "ignored",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mTypeError\u001b[0m                                 Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-7-2670604f7944>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0mpi\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;36m3.14\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 2\u001b[0;31m \u001b[0minfo\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m'o valor de pi é = '\u001b[0m \u001b[0;34m+\u001b[0m \u001b[0mpi\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
            "\u001b[0;31mTypeError\u001b[0m: can only concatenate str (not \"float\") to str"
          ]
        }
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      "source": [
        "pi = 3.14\r\n",
        "info = 'o valor de pi é = ' + str(pi)\r\n",
        "info"
      ],
      "execution_count": null,
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        {
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              "'o valor de pi é = 3.14'"
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        "string = 'roney'"
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      "outputs": []
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        "string[0]"
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          "data": {
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              "type": "string"
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            "text/plain": [
              "'r'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 12
        }
      ]
    },
    {
      "cell_type": "code",
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        "id": "BzcgcVx21xZn",
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        "outputId": "5ad38fa2-581b-4b49-c720-6a205201154d"
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      "source": [
        "string[1:]"
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            "text/plain": [
              "'oney'"
            ]
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          "metadata": {
            "tags": []
          },
          "execution_count": 13
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "kMSQXhW_1yvO",
        "colab": {
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          "height": 36
        },
        "outputId": "33982a93-5d6a-475f-f5fd-403a820cbe8b"
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      "source": [
        "string[2:4]"
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        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
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            "text/plain": [
              "'ne'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 14
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "u2F7i8mw10qN",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 36
        },
        "outputId": "25ce81d0-17d6-475d-ed8e-8cb08379fb86"
      },
      "source": [
        "string[-1]"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'y'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 17
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "V0D5qTmp12Mn"
      },
      "source": [
        "string[1:10]"
      ],
      "execution_count": null,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "UC5dXW9S13mi",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "15d8d827-2cd4-40f3-f591-be0e728f0611"
      },
      "source": [
        "s = 'instituto de ciências matemáticas e de computação'\r\n",
        "len(s)"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "49"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 18
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "7eyRBidU2CjE",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "c18ac35d-16be-496b-b0ee-01c19cc46541"
      },
      "source": [
        "r = 'roney l'\r\n",
        "len(r)"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "7"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 19
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "gzGQrgJG2FMa",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 36
        },
        "outputId": "a1d78dae-364a-48d0-f233-98bc4c22dacf"
      },
      "source": [
        "k = 'Roney Lira'\r\n",
        "k.lower()"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'roney lira'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 20
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "H7rGkQ6o2IjS",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 36
        },
        "outputId": "205f7edc-57fd-4473-8448-a28693e262b1"
      },
      "source": [
        "k.upper()"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'RONEY LIRA'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 21
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "VbL1aU7i2Ll_",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 36
        },
        "outputId": "23c75a4b-6cb1-4ccd-a068-2ccb17111b6f"
      },
      "source": [
        "r = ' Aula sobre strings '\r\n",
        "r.strip()"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'Aula sobre strings'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 22
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "wx1TCOuS2R7E",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 36
        },
        "outputId": "90f16db9-2370-43f4-a642-e24e732cdd73"
      },
      "source": [
        "r = 'roney'\r\n",
        "r.replace('r', 'l')"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'loney'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 23
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "In-0af-E2Zt2",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 36
        },
        "outputId": "54eebf4b-290a-4c4a-bdeb-b7a145e7f0f9"
      },
      "source": [
        "lista_letras = ['á', 'é']\r\n",
        "string = \"o roney que está ministrando a aula é aluno\"\r\n",
        "for letra in lista_letras:\r\n",
        "  string = string.replace(letra, 'x')\r\n",
        "string"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'o roney que estx ministrando a aula x aluno'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 31
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "MMTr5h2v2iDz",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "7e0f91b7-416f-4460-c090-3e2d98ecc161"
      },
      "source": [
        "s = 'instituto de ciências matemáticas e de computação'\r\n",
        "s.split(' ')"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "['instituto', 'de', 'ciências', 'matemáticas', 'e', 'de', 'computação']"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 33
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "b3vbYLFa2oFb",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "f9127cc6-d31a-4793-c4b3-d8a137e94b40"
      },
      "source": [
        "s.split('matemáticas')"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "['instituto de ciências ', ' e de computação']"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 34
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "Jt9ig_N42qG6",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 36
        },
        "outputId": "90b71d22-ecb2-4ef5-f392-74aa2683b364"
      },
      "source": [
        "lista_s = s.split('de')\r\n",
        "lista_s[1].strip()"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'ciências matemáticas e'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 36
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "pPpaIhkN2sKW",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "ac144a37-99bb-4caa-9ef1-83f16a0f8ca6"
      },
      "source": [
        "len(s.split())"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "7"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 37
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "DNs5hySg20WN",
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        },
        "outputId": "8ec1f01c-00a3-453f-a72c-d6df4b1f4e75"
      },
      "source": [
        "sl = s.split()\r\n",
        "sl"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "['instituto', 'de', 'ciências', 'matemáticas', 'e', 'de', 'computação']"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 38
        }
      ]
    },
    {
      "cell_type": "code",
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        "id": "Xq9LpKVR26ma",
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          "height": 36
        },
        "outputId": "4f2a4e6b-af2b-4276-f694-965b9052dc40"
      },
      "source": [
        "sj = \" \".join(sl)\r\n",
        "sj"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'instituto de ciências matemáticas e de computação'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 39
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "rTkD9_pG2-5s",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 36
        },
        "outputId": "08bc1580-097e-4bb6-fb50-3ac7e2d41bbc"
      },
      "source": [
        "sj = \"/\".join(sl)\r\n",
        "sj"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'instituto/de/ciências/matemáticas/e/de/computação'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 40
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "DLV6UPf43S_q",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 36
        },
        "outputId": "c7bec903-ec0c-4440-9ccd-e543c35ab7b5"
      },
      "source": [
        "sj = \"\\n\".join(sl)\r\n",
        "sj"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'instituto\\nde\\nciências\\nmatemáticas\\ne\\nde\\ncomputação'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 42
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "HPbeE9Uy3hxf"
      },
      "source": [
        "s = 'instituto\\nde ciências matemáticas\\n e de computação'\r\n",
        "s"
      ],
      "execution_count": null,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "1hHH1yQK3pjT"
      },
      "source": [
        "s = 'instituto de \\'ciências matemáticas\\' e de computação'\r\n",
        "s"
      ],
      "execution_count": null,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "xT9F8yyr3yow"
      },
      "source": [
        "s = 'instituto \\t de ciências matemáticas e \\t de computação'\r\n",
        "s"
      ],
      "execution_count": null,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "1uHUulO435CR"
      },
      "source": [
        "s = 'instituto \\\\ de ciências matemáticas e \\\\ de computação'\r\n",
        "s"
      ],
      "execution_count": null,
      "outputs": []
    }
  ]
}