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{
"metadata": {
"name": ""
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 16: Input and Output Operations in Python"
]
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Program 16.1, Page number: 350"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"def main():\n",
"\n",
" #Variable Declaration\n",
" c='X'\n",
" s=\"abcdefghijklmnopqrstuvwxyz\"\n",
" i=425\n",
" j=17\n",
" u=0xf179\n",
" l=75000\n",
" L=0x1234567812345678\n",
" f=12.978\n",
" d=-97.4583\n",
" cp=c\n",
" ip=i\n",
" \n",
"\n",
" #Print Integers\n",
" print(\"Integers:\\n\")\n",
" print(\"%i %o %x %u\" %(i,i,i,i))\n",
" print(\"%x %X %#x %#X\" %(i,i,i,i))\n",
" print(\"%+i % i %07i %.7i\" %(i,i,i, i))\n",
" print(\"%i %o %x %u\" %(j,j,j,j))\n",
" print(\"%i %o %x %u\" %(u,u,u,u))\n",
" print(\"%ld %lo %lx %lu\" %(l,l,l,l))\n",
" print(\"%li %lo %lx %lu\" %(L,L,L, L))\n",
"\n",
" #Print Floats & Doubles\n",
" print(\"\\nFloats and Doubles:\")\n",
" print(\"%f %e %g\"%( f, f, f))\n",
" print(\"%.2f %.2e\"%( f, f))\n",
" print(\"%.0f %.0e\"%( f, f))\n",
" print(\"%7.2f %7.2e\"%( f, f))\n",
" print(\"%f %e %g\"%( d, d, d))\n",
" print(\"%.*f\"%( 3, d))\n",
" print(\"%*.*f\" %(8, 2, d))\n",
"\n",
" #Print Characters\n",
" print(\"\\nCharacters:\")\n",
" print(\"%c\"%(c))\n",
" print(\"%3c%3c\"%( c, c))\n",
" print(\"{0:x} \".format(ord(c))) \n",
"\n",
" #Print Strings\n",
" print(\"\\nStrings:\")\n",
" print(\"%s\"%(s))\n",
" print(\"%.5s\"%(s))\n",
" print(\"%30s\"%(s))\n",
" print(\"%20.5s\"%(s))\n",
" print(\"%-20.5s\"%(s))\n",
"\n",
" #Print variables pointers\n",
" print(\"\\nPointers:\")\n",
" print(\"{0:x} {1:x}\\n\".format(int(ip),ord(cp)))\n",
"\n",
" print(\"This%n is fun.\")\n",
" print(\"c1 = %i, c2 = %i\\n\"%(4, 12))\n",
"\n",
"\n",
"if __name__=='__main__':\n",
" main()\n",
"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Integers:\n",
"\n",
"425 651 1a9 425\n",
"1a9 1A9 0x1a9 0X1A9\n",
"+425 425 0000425 0000425\n",
"17 21 11 17\n",
"61817 170571 f179 61817\n",
"75000 222370 124f8 75000\n",
"1311768465173141112 110642547402215053170 1234567812345678 1311768465173141112\n",
"\n",
"Floats and Doubles:\n",
"12.978000 1.297800e+01 12.978\n",
"12.98 1.30e+01\n",
"13 1e+01\n",
" 12.98 1.30e+01\n",
"-97.458300 -9.745830e+01 -97.4583\n",
"-97.458\n",
" -97.46\n",
"\n",
"Characters:\n",
"X\n",
" X X\n",
"58 \n",
"\n",
"Strings:\n",
"abcdefghijklmnopqrstuvwxyz\n",
"abcde\n",
" abcdefghijklmnopqrstuvwxyz\n",
" abcde\n",
"abcde \n",
"\n",
"Pointers:\n",
"1a9 58\n",
"\n",
"This%n is fun.\n",
"c1 = 4, c2 = 12\n",
"\n"
]
}
],
"prompt_number": 8
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Program 16.2, Page number: 362"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"import sys\n",
"\n",
"def main():\n",
" \n",
" while (True):\n",
" #c=raw_input() #User Input\n",
" c=\"this is a sample text\" #Dummy text\n",
" print(c); #Display Result\n",
" \n",
" #Un-comment this while executing from terminal/command line\n",
" #if(c==\"EOF\"): #Check Exit condition\n",
" sys.exit()\n",
" \n",
"\n",
"if __name__=='__main__':\n",
" main()\n",
"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"ename": "SystemExit",
"evalue": "",
"output_type": "pyerr",
"traceback": [
"An exception has occurred, use %tb to see the full traceback.\n",
"\u001b[1;31mSystemExit\u001b[0m\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"this is a sample text\n"
]
},
{
"output_type": "stream",
"stream": "stderr",
"text": [
"To exit: use 'exit', 'quit', or Ctrl-D."
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Program 16.3, Page number: 366"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"def main():\n",
"\n",
" #Variable Declaration/ User Input\n",
" print(\"Enter name of the file to be copied: \")\n",
" inName=\"source.txt\"\n",
" #inName=raw_input()\n",
"\n",
" print(\"Enter name of the output file: \")\n",
" outName=\"target.txt\"\n",
" #outName=raw_input()\n",
"\n",
" \n",
" try:\n",
" inn=open(inName,\"r\") \n",
" except:# Exception:\n",
" print(\"cant open {0} for reading\".format(inName))\n",
" sys.exit()\n",
"\n",
" try:\n",
" out=open(outName,\"w\") \n",
" except:# Exception:\n",
" print(\"cant open {0} for writing\".format(outName))\n",
" sys.exit()\n",
"\n",
" string=inn.read() #Read content from File-1\n",
" out.write(string) #Write content to File-2\n",
"\n",
" inn.close()\n",
" out.close()\n",
"\n",
" print(\"File has been copied.\\n\");\n",
"\n",
"if __name__=='__main__':\n",
" main()\n",
"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"ename": "SystemExit",
"evalue": "",
"output_type": "pyerr",
"traceback": [
"An exception has occurred, use %tb to see the full traceback.\n",
"\u001b[0;31mSystemExit\u001b[0m\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter name of the file to be copied: \n",
"Enter name of the output file: \n",
"cant open source.txt for reading\n"
]
},
{
"output_type": "stream",
"stream": "stderr",
"text": [
"To exit: use 'exit', 'quit', or Ctrl-D.\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "code",
"collapsed": false,
"input": [],
"language": "python",
"metadata": {},
"outputs": []
}
],
"metadata": {}
}
]
}
|
