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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:2b98cee86e6322a41a7dca7a85df32b68e0995a4fde2b6249b408a952c9387e4"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 6: Scope & Extent"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example scope1.c, page no. 202"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#as mentioned in the textbook, the statement j = 30 will not give an error as in Python you can declare a vairable anywhere\n",
+      "#however, the statement does not refer to the variable j of the function.\n",
+      "def func():\n",
+      "    j = 20\n",
+      "    print \"j is a variable in the function\"\n",
+      "    print \"Value of j is \",j\n",
+      "i = 10\n",
+      "print \"i is a variable in main.\"\n",
+      "print \"Value of i is \", i\n",
+      "print \"Calling func...\"\n",
+      "func()\n",
+      "j = 30"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "i is a variable in main.\n",
+        "Value of i is  10\n",
+        "Calling func...\n",
+        "j is a variable in the function\n",
+        "Value of j is  20\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example global.c, page no. 202"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "g = 0\n",
+      "def func():\n",
+      "    global g\n",
+      "    print \"In func. g is visbile here, since it is global\"\n",
+      "    print \"Incrementing g in func...\"\n",
+      "    g += 1\n",
+      "    return g\n",
+      "print \"In main. g is visible here, since it is global\"\n",
+      "print \"assigning 20 to g in main...\"\n",
+      "g = 20\n",
+      "print \"Callint func...\"\n",
+      "func()\n",
+      "print \"func returned g is \", g"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "In main. g is visible here, since it is global\n",
+        "assigning 20 to g in main...\n",
+        "Callint func...\n",
+        "In func. g is visbile here, since it is global\n",
+        "Incrementing g in func...\n",
+        "func returned g is  21\n"
+       ]
+      }
+     ],
+     "prompt_number": 5
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example colcolon.c, page no. 203"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#there is no concept of scope resolution operator in Python. we will do it in different way\n",
+      "a = 10\n",
+      "def func():\n",
+      "    global a\n",
+      "    b = 20\n",
+      "    print b\n",
+      "    print a\n",
+      "func()"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "20\n",
+        "10\n"
+       ]
+      }
+     ],
+     "prompt_number": 10
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 6.1, page no. 204"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#there is no concept of block in Python. writing if True is smiliar to it but still, output will differ\n",
+      "j = 144\n",
+      "print \"The value of j outside the block is \", j\n",
+      "if True:\n",
+      "    j = 12\n",
+      "    print \"The value of j inside the block is \", j\n",
+      "print \"The value of j outside the block is \", j"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The value of j outside the block is  144\n",
+        "The value of j inside the block is  12\n",
+        "The value of j outside the block is  12\n"
+       ]
+      }
+     ],
+     "prompt_number": 12
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 6.2, page no. 205"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "i = 144\n",
+      "j = 132\n",
+      "print \"i = \", i\n",
+      "if True:\n",
+      "    k = 12\n",
+      "    k = int(raw_input())\n",
+      "    i = i%k\n",
+      "if i == 0:\n",
+      "    print \"i is a divisor of %d \" %k"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "i =  144\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "25\n"
+       ]
+      }
+     ],
+     "prompt_number": 14
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 6.3, page no. 205"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "iNum = 5\n",
+      "jNum = 30\n",
+      "if True:\n",
+      "    iNum = 10\n",
+      "    print \"%d %d\" %(iNum, jNum)\n",
+      "print \"%d %d\" %(iNum, jNum)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "10 30\n",
+        "10 30\n"
+       ]
+      }
+     ],
+     "prompt_number": 16
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 7, page no. 207"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "cName = raw_input(\"Enter a string: \")\n",
+      "print \"The reverse of the string is: \"\n",
+      "print cName[::-1]"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter a string: this is a string\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The reverse of the string is: \n",
+        "gnirts a si siht\n"
+       ]
+      }
+     ],
+     "prompt_number": 18
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 6.4 pageno : 206"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "iGlobal = 35\n",
+      "Number = 47\n",
+      "iVal = 99\n",
+      "Number = 1000\n",
+      "print \"The value of local variable Number is %d\"%Number\n",
+      "print \"The value of global variable iGlobal is %d\"%iGlobal\n",
+      "print \"The value of global variable Number is %d\"%Number\n",
+      "print \"The value of static global variable iVal is %d\"%iVal\n",
+      "\n",
+      "# Python has no static functionality. and also local variable changes value when value assigned to it."
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The value of local variable Number is 1000\n",
+        "The value of global variable iGlobal is 35\n",
+        "The value of global variable Number is 1000\n",
+        "The value of static global variable iVal is 99\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 6.5, page no. 208"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "Count = 1\n",
+      "def PrintCount():\n",
+      "    global Count\n",
+      "    print \"Count = %d\" %Count\n",
+      "    Count = Count + 1\n",
+      "PrintCount()\n",
+      "PrintCount()\n",
+      "PrintCount()"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Count = 1\n",
+        "Count = 2\n",
+        "Count = 3\n"
+       ]
+      }
+     ],
+     "prompt_number": 19
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 6.6, page no.208"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "uF1 = 0\n",
+      "uF2 = 1\n",
+      "def PrintNextFibo():\n",
+      "    global uF1,uF2\n",
+      "    uFpre = uF1 + uF2\n",
+      "    print \"%d\" %uFpre ,\n",
+      "    uF2 = uF1\n",
+      "    uF1 = uFpre\n",
+      "print \"Fibonacci sequences using static variables :\"\n",
+      "print \"Enter how many number are to be generated :\",\n",
+      "itotNum = int(raw_input())\n",
+      "print \"The first %d fibonacci numbers are\" %itotNum\n",
+      "for iIndex in range(1,itotNum+1):\n",
+      "    PrintNextFibo()\n",
+      "\n",
+      "# it starts with zero but here function created called uses global variable so we need to print/assume manually zero value."
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Fibonacci sequences using static variables :\n",
+        "Enter how many number are to be generated :"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "5\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        " The first 5 fibonacci numbers are\n",
+        "1 1 2 3 5\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example on page no. 209"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import linsrch\n",
+      "import bubble\n",
+      "arr = []\n",
+      "num = 5\n",
+      "i = 0\n",
+      "pos = 1\n",
+      "print \"Enter five elements\"\n",
+      "while i < num:\n",
+      "    arr.append(int(raw_input()))\n",
+      "    i+=1\n",
+      "print \"Enter element to be searched: \",\n",
+      "key = int(raw_input())\n",
+      "pos = linsrch.LinSrch(arr, num, key)\n",
+      "if pos:\n",
+      "    print \"Element %d found at %d position\" %(key, pos)\n",
+      "else:\n",
+      "    print \"Ellement %d not found\" %key\n",
+      "bubble.BubSort(arr, num)\n",
+      "print \"The sorted element are\"\n",
+      "for ele in arr:\n",
+      "    print ele,"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter five elements\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "12\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "15\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "56\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "48\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "22\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter element to be searched: "
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "22\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        " Element 22 found at 5 position\n",
+        "The sorted element are\n",
+        "12 15 22 48 56\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example on page no. 211"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import myglobal\n",
+      "globalVar = 10\n",
+      "print \"globalVar before calling = \", globalVar\n",
+      "myglobal.inc_global(globalVar)\n",
+      "print \"globalVar after calling  \", globalVar"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "globalVar before calling =  10\n",
+        "globalVar after calling   10\n"
+       ]
+      }
+     ],
+     "prompt_number": 6
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example on page no. 212"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import myglobal\n",
+      "\n",
+      "globalVar = 10\n",
+      "print \"globalVar before calling = \", globalVar\n",
+      "g = myglobal.inc_global(globalVar)\n",
+      "print \"globalVar after calling  \", g"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "globalVar before calling =  10\n",
+        "globalVar after calling   11\n"
+       ]
+      }
+     ],
+     "prompt_number": 7
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file