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+{
+ "metadata": {
+ "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 8: Structuring Your Programs"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Program 8.1, page no. 323"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\"\"\"\n",
+ "Scoping out scope\n",
+ "\"\"\"\n",
+ "\n",
+ "count1 = 1\n",
+ "\n",
+ "while(count1<=5):\n",
+ " count1 += 1\n",
+ " count2 = 0\n",
+ " count2 += 1\n",
+ " print \"count1 = %d count2 = %d \" %(count1, count2)\n",
+ " \n",
+ "print \"count1 = %d\\n\" %count1"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "count1 = 2 count2 = 1 \n",
+ "count1 = 3 count2 = 1 \n",
+ "count1 = 4 count2 = 1 \n",
+ "count1 = 5 count2 = 1 \n",
+ "count1 = 6 count2 = 1 \n",
+ "count1 = 6\n",
+ "\n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Program 8.2, page no. 324"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\"\"\"\n",
+ "More scope in this example\n",
+ "note: the way it is given in textbook is not possible in Python\n",
+ "\"\"\"\n",
+ "\n",
+ "\n",
+ "count = 0\n",
+ "while(count<=5):\n",
+ " count += 1\n",
+ " print \"count = \", count\n",
+ " \n",
+ "print \"count = \", count"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "count = 1\n",
+ "count = 2\n",
+ "count = 3\n",
+ "count = 4\n",
+ "count = 5\n",
+ "count = 6\n",
+ "count = 6\n"
+ ]
+ }
+ ],
+ "prompt_number": 2
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Program 8.3, page no. 330"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\"\"\"\n",
+ "Calculating an average using functions\n",
+ "\"\"\"\n",
+ "\n",
+ "def Sum(x, n):\n",
+ " sum = 0.0\n",
+ " for i in range(n):\n",
+ " sum += x[i]\n",
+ " return sum\n",
+ " \n",
+ "def Average(x, n):\n",
+ " return Sum(x, n)/n\n",
+ "\n",
+ "def GetData(data, t):\n",
+ " print \"How many values do you want to enter (Maximum 50)? \"\n",
+ " nValues = int(raw_input())\n",
+ " if(nValues > 50):\n",
+ " print \"Maximum count exceeded. 50 items will be read.\"\n",
+ " nValues = 50\n",
+ " for i in range(nValues):\n",
+ " data.append(float(raw_input()))\n",
+ " return nValues\n",
+ " \n",
+ "samples = []\n",
+ "sampleCount = GetData(samples, 50);\n",
+ "average = Average(samples, sampleCount);\n",
+ "print \"The average of the values you entered is: \", average"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "How many values do you want to enter (Maximum 50)? \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "5\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "1.0\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "2.0\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "3.0\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "4.0\n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "5.0\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "The average of the values you entered is: 3.0\n"
+ ]
+ }
+ ],
+ "prompt_number": 3
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Program 8.4, page no. 339"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\"\"\"\n",
+ "The functional approach to string sorting\n",
+ "\"\"\"\n",
+ "\n",
+ "def sort_string(text):\n",
+ " dot_separated = text.split('.')\n",
+ " text_sorted = sorted(dot_separated)\n",
+ " return text_sorted\n",
+ "\n",
+ "\n",
+ "print \"Enter strings to be sorted, separated by '.' Press Enter to end: \"\n",
+ "text = raw_input()\n",
+ "\n",
+ "sorted_text = sort_string(text)\n",
+ "\n",
+ "for str in sorted_text:\n",
+ " print str"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Enter strings to be sorted, separated by '.' Press Enter to end: \n"
+ ]
+ },
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Sample strings. These are samples. Another Sample\n"
+ ]
+ },
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ " Another Sample\n",
+ " These are samples\n",
+ "Sample strings\n"
+ ]
+ }
+ ],
+ "prompt_number": 4
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Program 8.5, page no. 344"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\"\"\"\n",
+ "A function to increase your pay\n",
+ "\"\"\"\n",
+ "\n",
+ "def IncomePlus(pPay):\n",
+ " pPay += 10000\n",
+ " return pPay\n",
+ "\n",
+ "your_pay = 30000\n",
+ "pold_pay = your_pay\n",
+ "pnew_pay = IncomePlus(pold_pay)\n",
+ "print \"Old pay = $\", pold_pay\n",
+ "print \"New pay = $\", pnew_pay"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Old pay = $ 30000\n",
+ "New pay = $ 40000\n"
+ ]
+ }
+ ],
+ "prompt_number": 5
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Program 8.6, page no. 345"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "\"\"\"\n",
+ "A function to increase your pay that doesn't\n",
+ "\"\"\"\n",
+ "\n",
+ "def IncomePlus(pPay):\n",
+ " pPay += 10000\n",
+ " return id(pPay)\n",
+ "\n",
+ "your_pay = 30000\n",
+ "pold_pay = your_pay\n",
+ "pnew_pay = IncomePlus(pold_pay)\n",
+ "print \"Old pay = $\", pold_pay\n",
+ "print \"New pay = $\", pnew_pay"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Old pay = $ 30000\n",
+ "New pay = $ 38417016\n"
+ ]
+ }
+ ],
+ "prompt_number": 6
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+} \ No newline at end of file
generated by cgit (git 2.34.1) at 2024-12-20 11:20:39 +0000