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+{
+ "metadata": {
+  "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 4 : The Standard Template Library: Hangman"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 3,
+     "metadata": {},
+     "source": [
+      "example 4.1 page no : 118"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\n",
+      "inventory = []\n",
+      "inventory.append(\"sword\");\n",
+      "inventory.append(\"armor\");\n",
+      "inventory.append(\"shield\");\n",
+      "print \"You have \" , len(inventory) , \" items.\";\n",
+      "print \"\\nYour items:\";\n",
+      "for i in inventory:\n",
+      "    print i\n",
+      "\n",
+      "print \"\\nYou trade your sword for a battle axe.\";\n",
+      "inventory[0] = \"battle axe\";\n",
+      "print \"\\nYour items:\\n\";\n",
+      "for i in inventory:\n",
+      "    print i\n",
+      "\n",
+      "print \"\\nThe item name '\" , inventory[0] , \"' has \",\n",
+      "print len(inventory[0]) , \" letters in it.\";\n",
+      "print \"\\nYour shield is destroyed in a fierce battle.\";\n",
+      "inventory.pop();\n",
+      "print \"\\nYour items:\";\n",
+      "for i in inventory:\n",
+      "    print i\n",
+      "\n",
+      "print \"\\nYou were robbed of all of your possessions by a thief.\";\n",
+      "inventory = []\n",
+      "if (not inventory):\n",
+      "    print \"\\nYou have nothing.\";\n",
+      "else:\n",
+      "    print \"\\nYou have at least one item.\\n\";"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "You have  3  items.\n",
+        "\n",
+        "Your items:\n",
+        "sword\n",
+        "armor\n",
+        "shield\n",
+        "\n",
+        "You trade your sword for a battle axe.\n",
+        "\n",
+        "Your items:\n",
+        "\n",
+        "battle axe\n",
+        "armor\n",
+        "shield\n",
+        "\n",
+        "The item name ' battle axe ' has  10  letters in it.\n",
+        "\n",
+        "Your shield is destroyed in a fierce battle.\n",
+        "\n",
+        "Your items:\n",
+        "battle axe\n",
+        "armor\n",
+        "\n",
+        "You were robbed of all of your possessions by a thief.\n",
+        "\n",
+        "You have nothing.\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 3,
+     "metadata": {},
+     "source": [
+      "example 4.2 page no : 124"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\n",
+      "inventory = []\n",
+      "inventory.append(\"sword\");\n",
+      "inventory.append(\"armor\");\n",
+      "inventory.append(\"shield\");\n",
+      "print \"You have \" , len(inventory) , \" items.\";\n",
+      "print \"\\nYour items:\";\n",
+      "for i in inventory:\n",
+      "    print i\n",
+      "\n",
+      "print \"\\nYou trade your sword for a battle axe.\";\n",
+      "inventory[0] = \"battle axe\";\n",
+      "print \"\\nYour items:\\n\";\n",
+      "for i in inventory:\n",
+      "    print i\n",
+      "\n",
+      "print \"\\nThe item name '\" , inventory[0] , \"' has \",\n",
+      "print len(inventory[0]) , \" letters in it.\";\n",
+      "\n",
+      "print \"You recover a crossbow from a slain enemy.\";\n",
+      "inventory.insert(0,\"crossbow\");\n",
+      "print \"Your items:\";\n",
+      "for i in inventory:\n",
+      "    print i\n",
+      "    \n",
+      "print \"\\nYour shield is destroyed in a fierce battle.\";\n",
+      "inventory.pop();\n",
+      "print \"\\nYour items:\";\n",
+      "for i in inventory:\n",
+      "    print i"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "You have  3  items.\n",
+        "\n",
+        "Your items:\n",
+        "sword\n",
+        "armor\n",
+        "shield\n",
+        "\n",
+        "You trade your sword for a battle axe.\n",
+        "\n",
+        "Your items:\n",
+        "\n",
+        "battle axe\n",
+        "armor\n",
+        "shield\n",
+        "\n",
+        "The item name ' battle axe ' has  10  letters in it.\n",
+        "You recover a crossbow from a slain enemy.\n",
+        "Your items:\n",
+        "crossbow\n",
+        "battle axe\n",
+        "armor\n",
+        "shield\n",
+        "\n",
+        "Your shield is destroyed in a fierce battle.\n",
+        "\n",
+        "Your items:\n",
+        "crossbow\n",
+        "battle axe\n",
+        "armor\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 3,
+     "metadata": {},
+     "source": [
+      "example 4.3 page no : 132"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "print \"Creating a list of scores.\";\n",
+      "scores = []\n",
+      "scores.append(1500);\n",
+      "scores.append(3500);\n",
+      "scores.append(7500);\n",
+      "print \"\\nHigh Scores:\";\n",
+      "for i in scores:\n",
+      "    print i\n",
+      "\n",
+      "print \"\\nFinding a score.\";\n",
+      "\n",
+      "print \"\\nEnter a score to find: \";\n",
+      "score = 3500 #int(raw_input())\n",
+      "iter = score in scores\n",
+      "if (iter):\n",
+      "    print \"Score found.\";\n",
+      "else:\n",
+      "    print \"Score not found.\";\n",
+      "\n",
+      "print \"\\nRandomizing scores.\";\n",
+      "import random\n",
+      "for i in range(len(scores)):\n",
+      "    scores[i] = int(random.random() * 10000) \n",
+      "\n",
+      "print \"\\nHigh Scores:\\n\";\n",
+      "for i in scores:\n",
+      "    print i\n",
+      "    \n",
+      "print \"\\nSorting scores.\";\n",
+      "scores.sort()\n",
+      "print \"\\nHigh Scores:\\n\";\n",
+      "for i in scores:\n",
+      "    print i"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Creating a list of scores.\n",
+        "\n",
+        "High Scores:\n",
+        "1500\n",
+        "3500\n",
+        "7500\n",
+        "\n",
+        "Finding a score.\n",
+        "\n",
+        "Enter a score to find: \n",
+        "Score found.\n",
+        "\n",
+        "Randomizing scores.\n",
+        "\n",
+        "High Scores:\n",
+        "\n",
+        "6658\n",
+        "5396\n",
+        "8522\n",
+        "\n",
+        "Sorting scores.\n",
+        "\n",
+        "High Scores:\n",
+        "\n",
+        "5396\n",
+        "6658\n",
+        "8522\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 3,
+     "metadata": {},
+     "source": [
+      "example 4.4 page no:  142"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "#setup\n",
+      "MAX_WRONG = 8;\n",
+      "#maximum number of incorrect guesses allowed\n",
+      "words = []  # collection of possible words to guess\n",
+      "words.append(\"GUESS\");\n",
+      "words.append(\"HANGMAN\");\n",
+      "words.append(\"DIFFICULT\");\n",
+      "THE_WORD = words[0];\n",
+      "wrong = 0;\n",
+      "soFar = []\n",
+      "for i in range(len(THE_WORD)):\n",
+      "    soFar.append('-')\n",
+      "\n",
+      "used = \"\";\n",
+      "\n",
+      "print \"Welcome to Hangman. Good luck!\\n\";\n",
+      "# main loop\n",
+      "while ((wrong < MAX_WRONG) and (''.join(soFar) != THE_WORD)):\n",
+      "    print \"\\n\\nYou have \" , (MAX_WRONG - wrong);\n",
+      "    print \" incorrect guesses left.\";\n",
+      "    print \"\\nYou've used the following letters:\\n\" , used \n",
+      "    print \"\\nSo far, the word is:\" , soFar\n",
+      "    print \"\\nEnter your guess: \";\n",
+      "    guess = raw_input()\n",
+      "    guess = guess.upper() #make uppercase since secret word in uppercase\n",
+      "    while guess in used:\n",
+      "        print \"\\nYou've already guessed \" , guess \n",
+      "        print \"Enter your guess: \";\n",
+      "        guess = 'GUESS' #raw_input()\n",
+      "        guess = guess.upper()\n",
+      "    used += guess;\n",
+      "    \n",
+      "    if (guess in THE_WORD):\n",
+      "        print \"That's right! \" , guess , \" is in the word.\";\n",
+      "        #update soFar to include newly guessed letter\n",
+      "        for i in range(len(THE_WORD)):\n",
+      "            if (THE_WORD[i] == guess):\n",
+      "                soFar[i] = guess\n",
+      "    else:\n",
+      "        print \"Sorry, \" , guess , \" isn't in the word.\";\n",
+      "        wrong += 1\n",
+      "#shut down\n",
+      "if (wrong == MAX_WRONG):\n",
+      "    print \"\\nYou've been hanged!\";\n",
+      "else:\n",
+      "    print \"\\nYou guessed it!\";\n",
+      "print \"\\nThe word was \" , THE_WORD "
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Welcome to Hangman. Good luck!\n",
+        "\n",
+        "\n",
+        "\n",
+        "You have  8\n",
+        " incorrect guesses left.\n",
+        "\n",
+        "You've used the following letters:\n",
+        "\n",
+        "\n",
+        "So far, the word is: ['-', '-', '-', '-', '-']\n",
+        "\n",
+        "Enter your guess: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "e\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "That's right!  E  is in the word.\n",
+        "\n",
+        "\n",
+        "You have  8\n",
+        " incorrect guesses left.\n",
+        "\n",
+        "You've used the following letters:\n",
+        "E\n",
+        "\n",
+        "So far, the word is: ['-', '-', 'E', '-', '-']\n",
+        "\n",
+        "Enter your guess: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "ae\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Sorry,  AE  isn't in the word.\n",
+        "\n",
+        "\n",
+        "You have  7\n",
+        " incorrect guesses left.\n",
+        "\n",
+        "You've used the following letters:\n",
+        "EAE\n",
+        "\n",
+        "So far, the word is: ['-', '-', 'E', '-', '-']\n",
+        "\n",
+        "Enter your guess: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "w\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Sorry,  W  isn't in the word.\n",
+        "\n",
+        "\n",
+        "You have  6\n",
+        " incorrect guesses left.\n",
+        "\n",
+        "You've used the following letters:\n",
+        "EAEW\n",
+        "\n",
+        "So far, the word is: ['-', '-', 'E', '-', '-']\n",
+        "\n",
+        "Enter your guess: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "wae\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Sorry,  WAE  isn't in the word.\n",
+        "\n",
+        "\n",
+        "You have  5\n",
+        " incorrect guesses left.\n",
+        "\n",
+        "You've used the following letters:\n",
+        "EAEWWAE\n",
+        "\n",
+        "So far, the word is: ['-', '-', 'E', '-', '-']\n",
+        "\n",
+        "Enter your guess: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "s\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "That's right!  S  is in the word.\n",
+        "\n",
+        "\n",
+        "You have  5\n",
+        " incorrect guesses left.\n",
+        "\n",
+        "You've used the following letters:\n",
+        "EAEWWAES\n",
+        "\n",
+        "So far, the word is: ['-', '-', 'E', 'S', 'S']\n",
+        "\n",
+        "Enter your guess: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "ews\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Sorry,  EWS  isn't in the word.\n",
+        "\n",
+        "\n",
+        "You have  4\n",
+        " incorrect guesses left.\n",
+        "\n",
+        "You've used the following letters:\n",
+        "EAEWWAESEWS\n",
+        "\n",
+        "So far, the word is: ['-', '-', 'E', 'S', 'S']\n",
+        "\n",
+        "Enter your guess: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "h\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Sorry,  H  isn't in the word.\n",
+        "\n",
+        "\n",
+        "You have  3\n",
+        " incorrect guesses left.\n",
+        "\n",
+        "You've used the following letters:\n",
+        "EAEWWAESEWSH\n",
+        "\n",
+        "So far, the word is: ['-', '-', 'E', 'S', 'S']\n",
+        "\n",
+        "Enter your guess: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "l\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Sorry,  L  isn't in the word.\n",
+        "\n",
+        "\n",
+        "You have  2\n",
+        " incorrect guesses left.\n",
+        "\n",
+        "You've used the following letters:\n",
+        "EAEWWAESEWSHL\n",
+        "\n",
+        "So far, the word is: ['-', '-', 'E', 'S', 'S']\n",
+        "\n",
+        "Enter your guess: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "g\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "That's right!  G  is in the word.\n",
+        "\n",
+        "\n",
+        "You have  2\n",
+        " incorrect guesses left.\n",
+        "\n",
+        "You've used the following letters:\n",
+        "EAEWWAESEWSHLG\n",
+        "\n",
+        "So far, the word is: ['G', '-', 'E', 'S', 'S']\n",
+        "\n",
+        "Enter your guess: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "u\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "That's right!  U  is in the word.\n",
+        "\n",
+        "You guessed it!\n",
+        "\n",
+        "The word was  GUESS\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file