{
"metadata": {
"name": "",
"signature": "sha256:84d44e5e34aa0042556dda8bb39ee06beeff8eaea8bb2913d8710f888ef51867"
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 7 - The For Loop"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.1, page no. 142"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"num = 2\n",
"num += 1\n",
"print num"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"3\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.2, page no. 142"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"num = 2\n",
"num += 1\n",
"print num"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"3\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.3, page no. 142"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"num = 2\n",
"print num\n",
"num += 1"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
}
],
"prompt_number": 3
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.4, page no. 143"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"num = 2\n",
"num -= 1\n",
"print num"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"1\n"
]
}
],
"prompt_number": 4
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.5, page no. 143"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"\n",
"num = 2\n",
"num -= 1\n",
"print num"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"1\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.6, page no. 144"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"num = 2\n",
"num -= 1\n",
"print num"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"1\n"
]
}
],
"prompt_number": 3
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.7, page no. 146"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"num = 1\n",
"print num\n",
"num += 1\n",
"print num\n",
"num += 1\n",
"print num\n",
"num += 1\n",
"print num\n",
"num += 1\n",
"print num\n",
"num += 1\n",
"print num\n",
"num += 1\n",
"print num\n",
"num += 1\n",
"print num\n",
"num += 1\n",
"print num\n",
"num += 1\n",
"print num"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"1\n",
"2\n",
"3\n",
"4\n",
"5\n",
"6\n",
"7\n",
"8\n",
"9\n",
"10\n"
]
}
],
"prompt_number": 9
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.8, page no. 146"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"for num in range(1, 11):\n",
" print num\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"1\n",
"2\n",
"3\n",
"4\n",
"5\n",
"6\n",
"7\n",
"8\n",
"9\n",
"10\n"
]
}
],
"prompt_number": 10
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.9, page no. 147"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"for num in range(1, 101):\n",
" print num,"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100\n"
]
}
],
"prompt_number": 12
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.10, page no. 149"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"num = 1\n",
"while num <= 10:\n",
" print num,\n",
" num += 1"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"1 2 3 4 5 6 7 8 9 10\n"
]
}
],
"prompt_number": 14
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.11, page no. 149"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"num = 1\n",
"while num <= 10:\n",
" print num,"
],
"language": "python",
"metadata": {},
"outputs": []
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.12, page no. 150"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"total = 1;\n",
"print \"Enter a number: \",\n",
"num = int(raw_input())\n",
"print \"The factorial of \", num, \" is \",\n",
"for counter in range(1, num+1):\n",
" total *= counter\n",
"print total"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter a number: "
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"5\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
" The factorial of 5 is 120\n"
]
}
],
"prompt_number": 16
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.13, page no. 150"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"secret = 3\n",
"print \"Guess a number between 1 and 10\"\n",
"print \"You have 3 tries\"\n",
"for counter in range(1,4):\n",
" print \"Enter the number now: \",\n",
" num = int(raw_input())\n",
" if (num == secret):\n",
" print \"You guessed the secret number!\"\n",
" break\n",
"print \"Program over\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Guess a number between 1 and 10\n",
"You have 3 tries\n",
"Enter the number now: "
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Enter the number now: "
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"5\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Enter the number now: "
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"4\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Program over\n"
]
}
],
"prompt_number": 17
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.14, page no. 151"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"secret = 3\n",
"print \"Guess a number between 1 and 10\\n\"\n",
"print \"You have 3 tries\\n\"\n",
"keepgoing = True\n",
"for counter in range(1, 4):\n",
" if keepgoing == True:\n",
" print \"Enter the number now: \",\n",
" num = int(raw_input())\n",
" if (num == secret):\n",
" print \"You guessed the secret number!\"\n",
" keepgoing = False\n",
" else:\n",
" break\n",
"print \"Program over\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Guess a number between 1 and 10\n",
"\n",
"You have 3 tries\n",
"\n",
"Enter the number now: "
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
" You guessed the secret number!\n",
"Program over\n"
]
}
],
"prompt_number": 18
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.15, page no. 152"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"num = 1\n",
"while True:\n",
" if (num > 10):\n",
" break\n",
" else:\n",
" print num, \" \",\n",
" num += 1"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"1 2 3 4 5 6 7 8 9 10 \n"
]
}
],
"prompt_number": 20
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.16, page no 153"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"total = 0\n",
"print \"How many items do you want to buy: \",\n",
"num = int(raw_input())\n",
"for counter in range(1, num+1):\n",
" if (counter % 13 == 0):\n",
" continue\n",
" total += 3\n",
"print \"Total for \", num, \" items is $\", total"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"How many items do you want to buy: "
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"5\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Total for 5 items is $ 15\n"
]
}
],
"prompt_number": 21
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.17, page no. 154"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"total = 0\n",
"print \"How many items do you want to buy: \",\n",
"num = int(raw_input())\n",
"keepgoing = True\n",
"for counter in range(1, num+1):\n",
" if (not(counter % 13 == 0 )):\n",
" total += 3\n",
"print \"Total for \", num, \" items is $\", total"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"How many items do you want to buy: "
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"6\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Total for 6 items is $ 18\n"
]
}
],
"prompt_number": 22
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.18, page no. 154"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"for x in range(1, 6):\n",
" for y in range(1, 11):\n",
" print \"X\",\n",
" print \"\\n\""
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"X X X X X X X X X X \n",
"\n",
"X X X X X X X X X X \n",
"\n",
"X X X X X X X X X X \n",
"\n",
"X X X X X X X X X X \n",
"\n",
"X X X X X X X X X X \n",
"\n"
]
}
],
"prompt_number": 23
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"example 7.19, page no. 155"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"print \"Enter number of salespersons: \",\n",
"persons = int(raw_input())\n",
"print \"Enter number of sales per salesperson: \",\n",
"numSales = int(raw_input())\n",
"for x in range(1, persons+1):\n",
" total = 0\n",
" for y in range(1, numSales+1):\n",
" print \"Enter sale \", y, \" for salesperson \", x, \": \"\n",
" sale = int(raw_input())\n",
" total += sale\n",
" average = float(total/numSales)\n",
" print \"Average sales for salesperson #\", x, \" is \", average"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter number of salespersons: "
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Enter number of sales per salesperson: "
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
" Enter sale 1 for salesperson 1 : \n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"1\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter sale 2 for salesperson 1 : \n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Average sales for salesperson # 1 is 1.0\n",
"Enter sale 1 for salesperson 2 : \n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter sale 2 for salesperson 2 : \n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"4\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Average sales for salesperson # 2 is 3.0\n",
"Enter sale 1 for salesperson 3 : \n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"5\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter sale 2 for salesperson 3 : \n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"6\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Average sales for salesperson # 3 is 5.0\n"
]
}
],
"prompt_number": 24
}
],
"metadata": {}
}
]
}