Colab_Class_23.ipynb

{
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  "metadata": {
    "colab": {
      "provenance": []
    },
    "kernelspec": {
      "name": "python3",
      "display_name": "Python 3"
    },
    "language_info": {
      "name": "python"
    }
  },
  "cells": [
    {
      "cell_type": "markdown",
      "source": [
        "### **Topics to be Covered**\n",
        "\n",
        "1. **Python - Interpreted or both Compiled & Interpreted?**\n",
        "2. **Modules in Python**\n",
        "3. **Main Function in Python**\n",
        "4. **Types of Errors in Python**\n",
        "5. **Exception Handling**"
      ],
      "metadata": {
        "id": "YVJZCyw3mtxe"
      }
    },
    {
      "cell_type": "code",
      "source": [
        "a = 100\n",
        "b = 10\n",
        "\n",
        "c = a+b\n",
        "\n",
        "print(c)\n",
        "\n",
        "a1 = 1000\n",
        "b1 = 2000\n",
        "\n",
        "1c = a1+b1\n",
        "\n",
        "print(1c)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 109
        },
        "id": "G_CM7bhNkEcN",
        "outputId": "a24fb60b-446c-46f9-901b-02ab0cb73ad5"
      },
      "execution_count": 2,
      "outputs": [
        {
          "output_type": "error",
          "ename": "SyntaxError",
          "evalue": "invalid decimal literal (<ipython-input-2-34cae58f8577>, line 11)",
          "traceback": [
            "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-2-34cae58f8577>\"\u001b[0;36m, line \u001b[0;32m11\u001b[0m\n\u001b[0;31m    1c = a1+b1\u001b[0m\n\u001b[0m    ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m invalid decimal literal\n"
          ]
        }
      ]
    },
    {
      "cell_type": "markdown",
      "source": [
        "### **Modules in Python**"
      ],
      "metadata": {
        "id": "_r5GBcVkuiUK"
      }
    },
    {
      "cell_type": "code",
      "source": [
        "import calculator as calc\n",
        "\n",
        "# import numpy as np\n",
        "# import pandas as pd"
      ],
      "metadata": {
        "id": "szX0WwZcsJdL"
      },
      "execution_count": 7,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "a = 100\n",
        "b = 10"
      ],
      "metadata": {
        "id": "2g3q1S2Xv8PN"
      },
      "execution_count": 8,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "calc.addPy(a,b)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "6udF0c29v_El",
        "outputId": "94ed5559-3322-4569-aed2-f66de14cc962"
      },
      "execution_count": 10,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "110"
            ]
          },
          "metadata": {},
          "execution_count": 10
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "calculator.subPy(a,b)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "Hl9UJKeAwECN",
        "outputId": "f7e152ae-6e73-4b6a-8961-5c9ffd6a836f"
      },
      "execution_count": 6,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "90"
            ]
          },
          "metadata": {},
          "execution_count": 6
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "from calculator import mulPy as mPy"
      ],
      "metadata": {
        "id": "5IJq8ZGdx3le"
      },
      "execution_count": 14,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "mPy(12,7)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "a9qPzSUfx8ur",
        "outputId": "b5590f05-b733-4fe2-8c43-69b2a7853093"
      },
      "execution_count": 15,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "84"
            ]
          },
          "metadata": {},
          "execution_count": 15
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "import mulPy from calculator"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 109
        },
        "id": "ORlC0NcfyRGT",
        "outputId": "a7641275-a0cc-427f-f06e-d8e17bb32b4d"
      },
      "execution_count": 13,
      "outputs": [
        {
          "output_type": "error",
          "ename": "SyntaxError",
          "evalue": "invalid syntax (<ipython-input-13-03d2a69f01d3>, line 1)",
          "traceback": [
            "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-13-03d2a69f01d3>\"\u001b[0;36m, line \u001b[0;32m1\u001b[0m\n\u001b[0;31m    import mulPy from calculator\u001b[0m\n\u001b[0m                 ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m invalid syntax\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "dir(calculator)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "3WXu4ElwzEVM",
        "outputId": "091575d5-4dce-4d4d-9f81-d435141ca1ff"
      },
      "execution_count": 16,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "['__builtins__',\n",
              " '__cached__',\n",
              " '__doc__',\n",
              " '__file__',\n",
              " '__loader__',\n",
              " '__name__',\n",
              " '__package__',\n",
              " '__spec__',\n",
              " 'addPy',\n",
              " 'divPy',\n",
              " 'mulPy',\n",
              " 'subPy']"
            ]
          },
          "metadata": {},
          "execution_count": 16
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "from calculator import *"
      ],
      "metadata": {
        "id": "-RVvlLExzZgq"
      },
      "execution_count": 17,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "subPy(a,b)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "nT7weJiyzcha",
        "outputId": "f62351b0-fb4b-4e5c-e101-4f47ac50667e"
      },
      "execution_count": 18,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "90"
            ]
          },
          "metadata": {},
          "execution_count": 18
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "# inbuilt module in python\n",
        "\n",
        "import math"
      ],
      "metadata": {
        "id": "ckUKfNh6zpKg"
      },
      "execution_count": 19,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "math.factorial(5)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "10FhkWRezsVV",
        "outputId": "4ce4eb14-1f70-4672-fbd4-a93839c0dd3a"
      },
      "execution_count": 20,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "120"
            ]
          },
          "metadata": {},
          "execution_count": 20
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "math.pi"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "4vmQIR41z97t",
        "outputId": "2b74dd8c-61d2-4731-e028-25b613592492"
      },
      "execution_count": 21,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "3.141592653589793"
            ]
          },
          "metadata": {},
          "execution_count": 21
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "math.sqrt(49)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "aRZjhZk00HKC",
        "outputId": "41fe369d-3c31-4351-e6b1-b036fe00eacc"
      },
      "execution_count": 22,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "7.0"
            ]
          },
          "metadata": {},
          "execution_count": 22
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "import random"
      ],
      "metadata": {
        "id": "oxMhUgdi0MGK"
      },
      "execution_count": 23,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "random.randint(0,5)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "DG4onl9T0N-P",
        "outputId": "37367806-116c-4cd4-d5b2-75a9e6092998"
      },
      "execution_count": 27,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "5"
            ]
          },
          "metadata": {},
          "execution_count": 27
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "import datetime\n",
        "import time"
      ],
      "metadata": {
        "id": "3RJQOKIf0Y9K"
      },
      "execution_count": 28,
      "outputs": []
    },
    {
      "cell_type": "markdown",
      "source": [
        "### **Types of Errors**"
      ],
      "metadata": {
        "id": "WrJ_BUAn8s5d"
      }
    },
    {
      "cell_type": "code",
      "source": [
        "# Syntax Error\n",
        "\n",
        "a = 100\n",
        "b = 10\n",
        "\n",
        "print(a+b)\n",
        "\n",
        "print(a+b"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 109
        },
        "id": "SPs9cSkh0rd_",
        "outputId": "891269bd-b26b-498c-9296-7baed5dd195f"
      },
      "execution_count": 30,
      "outputs": [
        {
          "output_type": "error",
          "ename": "SyntaxError",
          "evalue": "incomplete input (<ipython-input-30-973495905963>, line 8)",
          "traceback": [
            "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-30-973495905963>\"\u001b[0;36m, line \u001b[0;32m8\u001b[0m\n\u001b[0;31m    print(a+b\u001b[0m\n\u001b[0m             ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m incomplete input\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "# Syntax Error\n",
        "\n",
        "a = 100\n",
        "b = 10\n",
        "\n",
        "print(a+b)\n",
        "\n",
        "1a = 200\n",
        "print(1a)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 109
        },
        "id": "g5ppuYAt87nK",
        "outputId": "e8ffbc9d-1fcd-4542-851f-52cd39f949eb"
      },
      "execution_count": 31,
      "outputs": [
        {
          "output_type": "error",
          "ename": "SyntaxError",
          "evalue": "invalid decimal literal (<ipython-input-31-2442253b8a3a>, line 8)",
          "traceback": [
            "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-31-2442253b8a3a>\"\u001b[0;36m, line \u001b[0;32m8\u001b[0m\n\u001b[0;31m    1a = 200\u001b[0m\n\u001b[0m    ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m invalid decimal literal\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "while True\n",
        "   print(a+b)\n",
        "   break"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 109
        },
        "id": "q9WpaAxg9ASq",
        "outputId": "e56bc15d-6e68-4059-cc0f-96b5bb0dddbd"
      },
      "execution_count": 32,
      "outputs": [
        {
          "output_type": "error",
          "ename": "SyntaxError",
          "evalue": "expected ':' (<ipython-input-32-f8709b11bd7d>, line 1)",
          "traceback": [
            "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-32-f8709b11bd7d>\"\u001b[0;36m, line \u001b[0;32m1\u001b[0m\n\u001b[0;31m    while True\u001b[0m\n\u001b[0m               ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m expected ':'\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "# Indentation Error\n",
        "\n",
        "a = 12\n",
        "print(a)\n",
        "if a>10:\n",
        "    print(\"a is {}\".format(a))\n",
        "  print(\"a value is {}\".format(a))"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 109
        },
        "id": "w5OctrGb9TbZ",
        "outputId": "e71c58ae-8760-4f35-8ae2-27c92a0d7267"
      },
      "execution_count": 41,
      "outputs": [
        {
          "output_type": "error",
          "ename": "IndentationError",
          "evalue": "unindent does not match any outer indentation level (<tokenize>, line 7)",
          "traceback": [
            "\u001b[0;36m  File \u001b[0;32m\"<tokenize>\"\u001b[0;36m, line \u001b[0;32m7\u001b[0m\n\u001b[0;31m    print(\"a value is {}\".format(a))\u001b[0m\n\u001b[0m    ^\u001b[0m\n\u001b[0;31mIndentationError\u001b[0m\u001b[0;31m:\u001b[0m unindent does not match any outer indentation level\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "a = 5\n",
        "b = \"3\"\n",
        "\n",
        "print(a+b)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 180
        },
        "id": "qZYpNLiH-G0N",
        "outputId": "52126542-0ff3-43e7-b491-db536db9cb15"
      },
      "execution_count": 44,
      "outputs": [
        {
          "output_type": "error",
          "ename": "TypeError",
          "evalue": "unsupported operand type(s) for +: 'int' and 'str'",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mTypeError\u001b[0m                                 Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-44-5e9ea52dc3ba>\u001b[0m in \u001b[0;36m<cell line: 4>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      2\u001b[0m \u001b[0mb\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m\"3\"\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      3\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 4\u001b[0;31m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0ma\u001b[0m\u001b[0;34m+\u001b[0m\u001b[0mb\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
            "\u001b[0;31mTypeError\u001b[0m: unsupported operand type(s) for +: 'int' and 'str'"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "s = \"5\"\n",
        "\n",
        "int(s)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "i3iF2ogK-rLQ",
        "outputId": "4855f166-10cd-4f95-d769-717437b5faff"
      },
      "execution_count": 45,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "5"
            ]
          },
          "metadata": {},
          "execution_count": 45
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "s = \"five\"\n",
        "int(s)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 162
        },
        "id": "aW7LTdn3_HyC",
        "outputId": "ae24dced-bfb3-405e-a6d8-e05dd3648c62"
      },
      "execution_count": 46,
      "outputs": [
        {
          "output_type": "error",
          "ename": "ValueError",
          "evalue": "invalid literal for int() with base 10: 'five'",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mValueError\u001b[0m                                Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-46-422fa4392760>\u001b[0m in \u001b[0;36m<cell line: 2>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0ms\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m\"five\"\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 2\u001b[0;31m \u001b[0mint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0ms\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
            "\u001b[0;31mValueError\u001b[0m: invalid literal for int() with base 10: 'five'"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "l = [10,20,30,40,50]\n",
        "\n",
        "l.index(100)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 180
        },
        "id": "_yHkYvK4_TSZ",
        "outputId": "44fdba79-6071-4dc9-d21f-47e6277479cc"
      },
      "execution_count": 48,
      "outputs": [
        {
          "output_type": "error",
          "ename": "ValueError",
          "evalue": "100 is not in list",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mValueError\u001b[0m                                Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-48-e97116e9fff9>\u001b[0m in \u001b[0;36m<cell line: 3>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0ml\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m[\u001b[0m\u001b[0;36m10\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m20\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m30\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m40\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m50\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      2\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 3\u001b[0;31m \u001b[0ml\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mindex\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;36m100\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
            "\u001b[0;31mValueError\u001b[0m: 100 is not in list"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "a,b = (1,2)\n",
        "\n",
        "print(a)\n",
        "print(b)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "pvohbV5I_lHO",
        "outputId": "8ae6d9b4-0a32-4ced-ae4e-ad3f0d339597"
      },
      "execution_count": 49,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "1\n",
            "2\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "a, b = 1,2,3,4\n",
        "print(a)\n",
        "print(b)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 180
        },
        "id": "38EfgXFq_pBq",
        "outputId": "381b0372-440f-4d0b-b370-d95a239574cc"
      },
      "execution_count": 50,
      "outputs": [
        {
          "output_type": "error",
          "ename": "ValueError",
          "evalue": "too many values to unpack (expected 2)",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mValueError\u001b[0m                                Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-50-b332185d703e>\u001b[0m in \u001b[0;36m<cell line: 1>\u001b[0;34m()\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0ma\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mb\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;36m1\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m2\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m3\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m4\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m      2\u001b[0m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0ma\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      3\u001b[0m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mb\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
            "\u001b[0;31mValueError\u001b[0m: too many values to unpack (expected 2)"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "a = 5/2\n",
        "\n",
        "print(a)\n",
        "\n",
        "b = 5/0\n",
        "\n",
        "print(b)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 234
        },
        "id": "r7L-Oree_5Jz",
        "outputId": "edc20d1f-6ba9-4216-f5be-30854622c030"
      },
      "execution_count": 51,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "2.5\n"
          ]
        },
        {
          "output_type": "error",
          "ename": "ZeroDivisionError",
          "evalue": "division by zero",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mZeroDivisionError\u001b[0m                         Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-51-316bf058bad1>\u001b[0m in \u001b[0;36m<cell line: 5>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      3\u001b[0m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0ma\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      4\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 5\u001b[0;31m \u001b[0mb\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;36m5\u001b[0m\u001b[0;34m/\u001b[0m\u001b[0;36m0\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m      6\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      7\u001b[0m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mb\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
            "\u001b[0;31mZeroDivisionError\u001b[0m: division by zero"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "# Name Error\n",
        "\n",
        "gate = da+cs"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 180
        },
        "id": "yOFcaZ0FAXNa",
        "outputId": "49b6ff7a-9458-49c3-c2b2-e02770f31580"
      },
      "execution_count": 52,
      "outputs": [
        {
          "output_type": "error",
          "ename": "NameError",
          "evalue": "name 'da' is not defined",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mNameError\u001b[0m                                 Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-52-f17757f5be48>\u001b[0m in \u001b[0;36m<cell line: 3>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0;31m# Name Error\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      2\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 3\u001b[0;31m \u001b[0mgate\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mda\u001b[0m\u001b[0;34m+\u001b[0m\u001b[0mcs\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
            "\u001b[0;31mNameError\u001b[0m: name 'da' is not defined"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "s = \"Venky\"\n",
        "\n",
        "s.reverse()"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 180
        },
        "id": "TjnuKlFjAxY6",
        "outputId": "1265b57e-b75b-44be-f2aa-bd32655257d6"
      },
      "execution_count": 53,
      "outputs": [
        {
          "output_type": "error",
          "ename": "AttributeError",
          "evalue": "'str' object has no attribute 'reverse'",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mAttributeError\u001b[0m                            Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-53-51af539dcf85>\u001b[0m in \u001b[0;36m<cell line: 3>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0ms\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m\"Venky\"\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      2\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 3\u001b[0;31m \u001b[0ms\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mreverse\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
            "\u001b[0;31mAttributeError\u001b[0m: 'str' object has no attribute 'reverse'"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "s[::-1]"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 36
        },
        "id": "L7qWi76-BDI7",
        "outputId": "416a97de-93a9-4e8e-ae47-a2a20414e42a"
      },
      "execution_count": 54,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "'ykneV'"
            ],
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            }
          },
          "metadata": {},
          "execution_count": 54
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "l = [\"v\", \"e\", \"n\", \"k\", \"y\"]\n",
        "l.reverse()"
      ],
      "metadata": {
        "id": "nRSqvB-cBLCx"
      },
      "execution_count": 55,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "l"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "jbKTQOrJBQS2",
        "outputId": "780d0eb4-fe1f-4d4d-e1f7-73a953f15ee4"
      },
      "execution_count": 56,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "['y', 'k', 'n', 'e', 'v']"
            ]
          },
          "metadata": {},
          "execution_count": 56
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "x = [1,2,3,4,5]\n",
        "\n",
        "x[7]"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 180
        },
        "id": "JschleANBX0H",
        "outputId": "a02a194d-39b9-4399-e00a-2fe7a3f7ede0"
      },
      "execution_count": 57,
      "outputs": [
        {
          "output_type": "error",
          "ename": "IndexError",
          "evalue": "list index out of range",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mIndexError\u001b[0m                                Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-57-bb26ef17231a>\u001b[0m in \u001b[0;36m<cell line: 3>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0mx\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m[\u001b[0m\u001b[0;36m1\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m2\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m3\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m4\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m5\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      2\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 3\u001b[0;31m \u001b[0mx\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0;36m7\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
            "\u001b[0;31mIndexError\u001b[0m: list index out of range"
          ]
        }
      ]
    },
    {
      "cell_type": "markdown",
      "source": [
        "### **Exception Handling**"
      ],
      "metadata": {
        "id": "taVGOOl5CA49"
      }
    },
    {
      "cell_type": "code",
      "source": [
        "a = 100\n",
        "b = 10\n",
        "\n",
        "print(a+b)\n",
        "\n",
        "c = a/(b-b)\n",
        "\n",
        "d = a//b\n",
        "e = a*b\n",
        "\n",
        "print(d)\n",
        "print(e)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 234
        },
        "id": "6dQURZwjCENT",
        "outputId": "23b7d732-f06b-40ac-8b70-0b74f905393d"
      },
      "execution_count": 59,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "110\n"
          ]
        },
        {
          "output_type": "error",
          "ename": "ZeroDivisionError",
          "evalue": "division by zero",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mZeroDivisionError\u001b[0m                         Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-59-486f685a259b>\u001b[0m in \u001b[0;36m<cell line: 6>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      4\u001b[0m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0ma\u001b[0m\u001b[0;34m+\u001b[0m\u001b[0mb\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      5\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 6\u001b[0;31m \u001b[0mc\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0ma\u001b[0m\u001b[0;34m/\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mb\u001b[0m\u001b[0;34m-\u001b[0m\u001b[0mb\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m      7\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      8\u001b[0m \u001b[0md\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0ma\u001b[0m\u001b[0;34m//\u001b[0m\u001b[0mb\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
            "\u001b[0;31mZeroDivisionError\u001b[0m: division by zero"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "\n",
        "a = int(input(\"Enter a number a:\"))\n",
        "b = int(input(\"Enter a number b: \"))\n",
        "print(\"Division: \", a/b)\n",
        "\n",
        "\n",
        "print(\"addition: \",a+b)\n",
        "print(\"multiplication: \",a*b)\n",
        "print(\"subtraction: \",a-b)\n"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 252
        },
        "id": "52sQytI6DvNq",
        "outputId": "8fb70640-8c6e-4a4d-fb3a-5da4abffef71"
      },
      "execution_count": 63,
      "outputs": [
        {
          "name": "stdout",
          "output_type": "stream",
          "text": [
            "Enter a number a:10\n",
            "Enter a number b: 0\n"
          ]
        },
        {
          "output_type": "error",
          "ename": "ZeroDivisionError",
          "evalue": "division by zero",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mZeroDivisionError\u001b[0m                         Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-63-8bade4917810>\u001b[0m in \u001b[0;36m<cell line: 3>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0ma\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0minput\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"Enter a number a:\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      2\u001b[0m \u001b[0mb\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0minput\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"Enter a number b: \"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 3\u001b[0;31m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"Division: \"\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0ma\u001b[0m\u001b[0;34m/\u001b[0m\u001b[0mb\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m      4\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      5\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n",
            "\u001b[0;31mZeroDivisionError\u001b[0m: division by zero"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "# try-except\n",
        "\n",
        "try:\n",
        "  a = int(input(\"Enter a number a:\"))\n",
        "  b = int(input(\"Enter a number b: \"))\n",
        "  print(\"Division: \", a/b)\n",
        "except Exception as e:\n",
        "  print(\"Exception occured: {}\".format(e))\n",
        "\n",
        "print(\"addition: \",a+b)\n",
        "print(\"multiplication: \",a*b)\n",
        "print(\"subtraction: \",a-b)\n"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "JPTjUkcSCx06",
        "outputId": "f79b6da7-9066-4991-9b97-032b8e8c4226"
      },
      "execution_count": 64,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Enter a number a:10\n",
            "Enter a number b: 0\n",
            "Exception occured: division by zero\n",
            "addition:  10\n",
            "multiplication:  0\n",
            "subtraction:  10\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "try:\n",
        "  l = [100, 10,20,30,40,50]\n",
        "  number = int(input(\"Enter the number : \"))\n",
        "  i = l.index(number)\n",
        "  print(i)\n",
        "  print(number/i)\n",
        "except ZeroDivisionError:\n",
        "  print(\"Zero Division Error Occurs\")\n",
        "except ValueError:\n",
        "  print(\"Value not found in list\")\n",
        "except Exception as e:\n",
        "  print(\"Unknown error occurs : {}\".format(e))"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "KeA8Fql_En0y",
        "outputId": "7aa24996-619a-4b33-91ff-979b75de4fba"
      },
      "execution_count": 65,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Enter the number : 60\n",
            "Value not found in list\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "try:\n",
        "  l = [100, 10,20,30,40,50]\n",
        "  number = int(input(\"Enter the number : \"))\n",
        "  i = l.index(number)\n",
        "  print(i)\n",
        "  print(number/i)\n",
        "\n",
        "except ZeroDivisionError:\n",
        "  print(\"Zero Division Error Occurs\")\n",
        "except ValueError:\n",
        "  print(\"Value not found in list\")\n",
        "except Exception as e:\n",
        "  print(\"Unknown error occurs : {}\".format(e))\n",
        "finally:\n",
        "  print(\"Try-Except block is over\")"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "ArJ4_J77FbHe",
        "outputId": "6ac0eb17-9b01-409c-c689-f20d7824a29f"
      },
      "execution_count": 68,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Enter the number : 50\n",
            "5\n",
            "10.0\n",
            "Try-Except block is over\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "try:\n",
        "  l = [100, 10,20,30,40,50]\n",
        "  number = int(input(\"Enter the number : \"))\n",
        "  i = l.index(number)\n",
        "  print(i)\n",
        "  print(number/i)\n",
        "\n",
        "except ZeroDivisionError:\n",
        "  print(\"Zero Division Error Occurs\")\n",
        "except ValueError:\n",
        "  print(\"Value not found in list\")\n",
        "except Exception as e:\n",
        "  print(\"Unknown error occurs : {}\".format(e))\n",
        "finally:\n",
        "  print(\"Try-Except block is over\")"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "7nyNh1vgGHOc",
        "outputId": "046e8063-887b-4c23-9e7f-703195b5da20"
      },
      "execution_count": 69,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Enter the number : 100\n",
            "0\n",
            "Zero Division Error Occurs\n",
            "Try-Except block is over\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "try:\n",
        "  l = [100, 10,20,30,40,50]\n",
        "  number = int(input(\"Enter the number : \"))\n",
        "  i = l.index(number)\n",
        "  print(i)\n",
        "  print(number/i)\n",
        "\n",
        "except ZeroDivisionError:\n",
        "  print(\"Zero Division Error Occurs\")\n",
        "except ValueError:\n",
        "  print(\"Value not found in list\")\n",
        "except Exception as e:\n",
        "  print(\"Unknown error occurs : {}\".format(e))\n",
        "else:\n",
        "  print(\"Error Free Try Block\")\n",
        "finally:\n",
        "  print(\"Try-Except block is over\")"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "RtrTvkBSGQf9",
        "outputId": "a3a6ca27-39bd-416d-970c-c565a487660e"
      },
      "execution_count": 70,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Enter the number : 50\n",
            "5\n",
            "10.0\n",
            "Error Free Try Block\n",
            "Try-Except block is over\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "try:\n",
        "  l = [100, 10,20,30,40,50]\n",
        "  number = int(input(\"Enter the number : \"))\n",
        "  i = l.index(number)\n",
        "  print(i)\n",
        "  print(number/i)\n",
        "\n",
        "except ZeroDivisionError:\n",
        "  print(\"Zero Division Error Occurs\")\n",
        "except ValueError:\n",
        "  print(\"Value not found in list\")\n",
        "except Exception as e:\n",
        "  print(\"Unknown error occurs : {}\".format(e))\n",
        "else:\n",
        "  print(\"Error Free Try Block\")\n",
        "finally:\n",
        "  print(\"Try-Except block is over\")"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "TGwf8fCGG0Vk",
        "outputId": "d68e8572-2919-43a7-a8fd-d55910e336dd"
      },
      "execution_count": 71,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Enter the number : 100\n",
            "0\n",
            "Zero Division Error Occurs\n",
            "Try-Except block is over\n"
          ]
        }
      ]
    }
  ]
}