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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:3748f84e3bd0279efe47855bd2c4e23912ef725121f3591980fa33e19d6ccae4"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 14, Input/Output and Files"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Program 14-5, Page Number: 424"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Files : Opening and Closing\n",
+      "\n",
+      "# Open the file for writing\n",
+      "\n",
+      "file_pointer = open(\"first_file\",\"w\")\n",
+      "\n",
+      "print \"Enter text:\"\n",
+      "\n",
+      "# Get characters and place them in the file\n",
+      "\n",
+      "text = \"BASIC is easy,\\nFORTAN is fun,\\nPascal may be structured,\\nBut C's the one!\"\n",
+      "print text\n",
+      "file_pointer.write(text)\n",
+      "\n",
+      "file_pointer.close()\n",
+      "\n",
+      "file_pointer = open(\"first_file\",\"r\")\n",
+      "\n",
+      "#Display the text from file\n",
+      "\n",
+      "print \"\\nYou entered:\"\n",
+      "print file_pointer.read()\n",
+      "\n",
+      "file_pointer.close()"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter text:\n",
+        "BASIC is easy,\n",
+        "FORTAN is fun,\n",
+        "Pascal may be structured,\n",
+        "But C's the one!\n",
+        "\n",
+        "You entered:\n",
+        "BASIC is easy,\n",
+        "FORTAN is fun,\n",
+        "Pascal may be structured,\n",
+        "But C's the one!\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Program 14-6, Page Number: 426"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Using several files\n",
+      "\n",
+      "# Open the source file for reading\n",
+      "\n",
+      "first_file_pointer = open(\"first_file\",\"r\")\n",
+      "\n",
+      "# Open the destination file for writing\n",
+      "\n",
+      "second_file_pointer = open(\"second_file\",\"w\")\n",
+      "\n",
+      "# Transfer characters from source to destination file\n",
+      "\n",
+      "c = first_file_pointer.read()\n",
+      "second_file_pointer.write(c)\n",
+      "\n",
+      "# Close both files\n",
+      "\n",
+      "first_file_pointer.close()\n",
+      "second_file_pointer.close()\n",
+      "\n",
+      "# Open second file for displaying contentes\n",
+      "\n",
+      "second_file_pointer = open(\"second_file\",\"r\")\n",
+      "print(\"'second_file' contains:\")\n",
+      "print second_file_pointer.read()"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "'second_file' contains:\n",
+        "BASIC is easy,\n",
+        "FORTAN is fun,\n",
+        "Pascal may be structured,\n",
+        "But C's the one!\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Program 14-7, Page Number : 428"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Append mode\n",
+      "\n",
+      "# Open the first file for writing\n",
+      "\n",
+      "first_file_pointer = open(\"first_file\",\"w\")\n",
+      "\n",
+      "# Open the second file for appending\n",
+      "\n",
+      "second_file_pointer = open(\"second_file\",\"a\")\n",
+      "\n",
+      "# Writing to both files\n",
+      "\n",
+      "first_file_pointer.write(\"\\n--Anonymous\\n\")\n",
+      "second_file_pointer.write(\"\\n--Anonymous\\n\")\n",
+      "\n",
+      "# Close both files\n",
+      "\n",
+      "first_file_pointer.close()\n",
+      "second_file_pointer.close()\n",
+      "\n",
+      "# Display the contents of first file\n",
+      "first_file_pointer = open(\"first_file\",\"r\")\n",
+      "print(\"After write, 'first_file contains:\")\n",
+      "print first_file_pointer.read()\n",
+      "\n",
+      "# Display the contents of second file\n",
+      "second_file_pointer = open(\"second_file\",\"r\")\n",
+      "print(\"After append, 'second_file' contains:\")\n",
+      "print second_file_pointer.read()"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "After write, 'first_file contains:\n",
+        "\n",
+        "--Anonymous\n",
+        "\n",
+        "After append, 'second_file' contains:\n",
+        "BASIC is easy,\n",
+        "FORTAN is fun,\n",
+        "Pascal may be structured,\n",
+        "But C's the one!\n",
+        "--Anonymous\n",
+        "\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Program 14-8, Page Number: 431"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# The seek function\n",
+      "\n",
+      "# Open file for reading\n",
+      "try :\n",
+      "\tfile_pointer = open(\"second_file\",\"r\")\n",
+      "except :\n",
+      "\tprint \"'second_file' cannot be opened\"\n",
+      "\texit ()\n",
+      "\n",
+      "# Skip the first 6 characters\n",
+      "\n",
+      "file_pointer.seek(6,0)\n",
+      "print file_pointer.read()"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "is easy,\n",
+        "FORTAN is fun,\n",
+        "Pascal may be structured,\n",
+        "But C's the one!\n",
+        "--Anonymous\n",
+        "\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Program 14-9, Page Number: 433"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# The 'w+' mode and seek to rewind a file\n",
+      "\n",
+      "# Open a file for read/write\n",
+      "file_pointer = open(\"first_file\",\"w+\")\n",
+      "\n",
+      "print \"Enter text:\"\n",
+      "text = \"BASIC is easy,\\nFORTAN is fun,\\nPascal may be structured,\\nBut C's the one!\"\n",
+      "print text\n",
+      "file_pointer.write(text)\n",
+      "\n",
+      "file_pointer.seek(0,0)\n",
+      "\n",
+      "# Display the file\n",
+      "print \"\\nYou entered:\"\n",
+      "print file_pointer.read()"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter text:\n",
+        "BASIC is easy,\n",
+        "FORTAN is fun,\n",
+        "Pascal may be structured,\n",
+        "But C's the one!\n",
+        "\n",
+        "You entered:\n",
+        "BASIC is easy,\n",
+        "FORTAN is fun,\n",
+        "Pascal may be structured,\n",
+        "But C's the one!\n"
+       ]
+      }
+     ],
+     "prompt_number": 5
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
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