Martin_Lukan_Python_and_strings.ipynb

{
  "nbformat": 4,
  "nbformat_minor": 0,
  "metadata": {
    "colab": {
      "name": "Martin Lukan Python and strings.ipynb",
      "provenance": [],
      "collapsed_sections": [],
      "include_colab_link": true
    },
    "kernelspec": {
      "name": "python3",
      "display_name": "Python 3"
    }
  },
  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "view-in-github",
        "colab_type": "text"
      },
      "source": [
        "<a href=\"https://colab.research.google.com/github/mlukan/GDA3B2021/blob/main/Martin_Lukan_Python_and_strings.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "LoJw-LlCTnWF"
      },
      "source": [
        "# Mission 1\n",
        "\n",
        "Create a script that uses the len method to display the length of the string named: \"string\" below.\n",
        "\n",
        "We want to count only characters, so ignore the number of spaces\n",
        ".\n",
        "\n",
        "string = \"Taumata whakatangihanga koauau o tamatea turi pukaka piki maungah oronuku pokai whenuaki tanatahu \""
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "HecUyZA7EmHR",
        "outputId": "1ff0dbe7-560f-4f94-a262-58b0075bfd26"
      },
      "source": [
        "string = \"Taumata whakatangihanga koauau o tamatea turi pukaka piki maungah oronuku pokai whenuaki tanatahu \"\n",
        "len(string.replace(\" \",\"\"))\n",
        "#len(string)"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "85"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 5
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "J3bsGIvAT049"
      },
      "source": [
        "# Mission 2\n",
        "\n",
        "Create a script that takes a string as one parameter and a character as another parameter. Your script should return the position (starting with 1 and not 0) of all occurrences of the character within the string.\n",
        "\n",
        "For example, for the word \"hello\" and for the character \"o\", the script will return :\n",
        "- \"position : 5\""
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "Fy1OmPSUXNaP",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "894b6e85-218c-4b2e-8983-f209177d61f9"
      },
      "source": [
        "def countchar(word,char):\n",
        "  return f\"position: {word.find(char) + 1}\"\n",
        "countchar(\"Hello\",\"o\")\n"
      ],
      "execution_count": 1,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'position: 5'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 1
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "dVl36lvlWLdV"
      },
      "source": [
        "# Mission 3\n",
        "\n",
        "Create a script that only displays a particular part of a string it receives. In other words, make it so that you are able to decide the exact character range (e.g. 2nd to 5th character) to be displayed."
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "pN3_mD4YSPfb",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "fe6a0db9-b6b3-42e8-cf4d-493f01c29de1"
      },
      "source": [
        "def substring(string,start,end):\n",
        "  return string[start-1:end]\n",
        "substring(\"datascience\",5,7)\n"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'sci'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 13
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "GCvpkWzXXPTf"
      },
      "source": [
        "# Mission 4\n",
        "\n",
        "Find 3 ways to return the following string without including the spaces at the beginning and the end: \" Data Analyst \"."
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "QjLMjogySPk_",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "5525240f-c260-4739-f8dd-7931e9469b33"
      },
      "source": [
        "mystr = \" Data Analyst \"\n",
        "print(mystr.strip())\n",
        "print(mystr[1:-1])\n",
        "print(mystr.lstrip().rstrip())"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "Data Analyst\n",
            "Data Analyst\n",
            "Data Analyst\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "V8ZS3aECXvuZ"
      },
      "source": [
        "# Mission 5\n",
        "\n",
        "Create a script that converts all vowels to uppercase and all consonants to lowercase."
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "ph_j97PoSPmU",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "8e284162-1071-49db-e3c3-7f6078437d20"
      },
      "source": [
        "def caseconverter(string):\n",
        "  wovels = [\"A\",\"E\",\"I\",\"O\",\"U\",\"Y\",\"a\",\"e\",\"i\",\"o\",\"u\",\"y\"]\n",
        "  outstring = []\n",
        "  for char in string:\n",
        "    outstring.append(char.upper())  if char in wovels else outstring.append(char.lower())\n",
        "  return ''.join(outstring)\n",
        "caseconverter(\"Data Analyst\")\n",
        "      \n"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'dAtA AnAlYst'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 30
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "geMLdrvAYHKx"
      },
      "source": [
        "# Mission 6\n",
        "\n",
        "Create a script that replaces one character with another and redisplays the modified string."
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "1-cenx3RSPpq",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "db916b22-3dd7-495e-ee43-e3a605bb453f"
      },
      "source": [
        "def replacer(string,oldchar,newchar):\n",
        "  return string.replace(oldchar,newchar)\n",
        "replacer(\"Data Analyst\",\"D\",\"E\")"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'Eata Analyst'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 33
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "i6ya14m0ifjX"
      },
      "source": [
        ""
      ],
      "execution_count": null,
      "outputs": []
    }
  ]
}